Class 6 Science Question Answer WBBSE<\/strong><\/p>\nQuestion 4. The __________ is responsible for pumping blood throughout our body.
\nAnswer: Heart<\/p>\n
Question 5 Heart is made up of __________ muscles.
\nAnswer: Cardiac<\/p>\n
Question 6. In 99% of the cases, the heart is located the on __________ side of the chest.
\nAnswer: Left<\/p>\n
Question 7. __________ fluid prevents friction between the pericardium and the heart.
\nAnswer: Pericardial<\/p>\n
Question 8. The heart wall consists of the myocardium and the __________ endocardium.
\nAnswer: Epicardium<\/p>\n
Question 9. The __________ side of your heart receives blood from the body and pumps it to the lungs.
\nAnswer: Right<\/p>\n
Question 10. The heart of a normal adult human beats at the rate of about __________ per minute.
\nAnswer: 72<\/p>\n
Question 11. The __________ are the chambers that fill with the blood returning to the heart from the body and lungs.
\nAnswer: Atria<\/p>\n
Question 12. The two chambers on the bottom are called the __________
\nAnswer: Ventricles<\/p>\n
Question 13. Heart valves all work to keep the blood flowing __________
\nAnswer: Forward<\/p>\n
Question 14. The movement of the blood through the heart and around the body is called __________.
\nAnswer: Circulation<\/p>\n
Question 15. A healthy heart makes a __________ sound with each beat.
\nAnswer: Lub-Dub<\/p>\n
Question 16. From the right atrium, the blood descends into the __________ right ventricle through the, valve.
\nAnswer: Tricuspid<\/p>\n
Class 6 WBBSE Science Question Answer<\/strong><\/p>\nQuestion 17. __________ is an irregular or abnormal heartbeat.
\nAnswer: Arrhythmia<\/p>\n
Question 18. __________ Heart disease is a type of birth defect that causes problems with the heart at birth.
\nAnswer: Congenital<\/p>\n
<\/p>\n
Chapter 8 The Human Body Heart Identify As True Or False<\/h2>\n
Question 1. Organs are more complex units than tissues.
\nAnswer: True<\/p>\n
Question 2. The job of the circulatory system is to break down and absorb food.
\nAnswer: False<\/p>\n
Question 3. The kidneys are responsible for pumping blood throughout our body.
\nAnswer: False<\/p>\n
Question 4. Red blood cells carry oxygen around the body.
\nAnswer: True<\/p>\n
Question 5. It takes about 20 seconds for a red blood cell to circle the whole body.
\nAnswer: True<\/p>\n
Question 6. The heart is located a little to the left of the middle of your chest, and it is about the size of your fist.
\nAnswer: True<\/p>\n
Question 7. The heart is surrounded by a membrane called the myocardium.
\nAnswer: False<\/p>\n
Question 8. The heart of a normal adult human beats at the rate of about 72 per minute.
\nAnswer: True<\/p>\n
Class 6 WBBSE Science Question Answer<\/strong><\/p>\nQuestion 9. The heart has two left ventricles and a right ventricle.
\nAnswer: False<\/p>\n
Question 10. Two of the heart valves are the bicuspid valve and the mitral valve.
\nAnswer: False<\/p>\n
Question 11. The movement of the blood through the heart and around the body is called circulation.
\nAnswer: True<\/p>\n
Question 12. A healthy heart makes a lub-dub sound with each beat.
\nAnswer: True<\/p>\n
Question 13. The human circulatory system is really a two-part system whose purpose is to bring oxygen-bearing blood to all the tissues of the body.
\nAnswer: True<\/p>\n
Question 14. From the right atrium, the blood descends into the right ventricle through the tricuspid valve.
\nAnswer: True<\/p>\n
Question 15. People with angina feel pain in the chest which means the brain isn’t getting enough blood.
\nAnswer: False<\/p>\n
<\/p>\n
Chapter 8 The Human Body Heart Match The Columns<\/h2>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
Answer: A-4,B-5,C-2,D3<\/span><\/p>\n <\/p>\n
![\"WBBSE](\"https:\/\/wbbsesolutions.net\/wp-content\/uploads\/2023\/05\/WBBSE-Solutions-for-class-6-chapter-8-the-human-body-match-the-columns-1-heart-table-2.png\")
\nAnswer:<\/strong> A-5,B-4,C-1,D-3<\/span><\/p>\n <\/p>\n
Chapter 8 The Human Body Heart Answer In Words Or A Sentence<\/h2>\n
Question 1. What are the functions of the circulatory system? The job of the circulatory system is to<\/strong>
\nAnswer:<\/strong> move blood, nutrients, oxygen, carbon dioxide, and hormones, around the body.<\/span><\/p>\nQuestion 2. State the function of the heart in our body.<\/strong>
\nAnswer:<\/strong> The heart is responsible for pumping blood throughout our body.<\/p>\nQuestion 3. What type of muscle makes the heart?<\/strong>
\nAnswer:<\/strong> Cardiac Muscle.<\/p>\nClass 6 WBBSE Science Question Answer<\/strong><\/p>\nQuestion 4. How many chambers are there in our hearts?<\/strong>
\nAnswer:<\/strong> Four chambers.<\/p>\nQuestion 5. Name the middle layer of the heart wall.<\/strong>
\nAnswer:<\/strong> It is the myocardium.<\/p>\nQuestion 6. Name the valve present between the right atrium 20h and the right ventricle.<\/strong>
\nAnswer:<\/strong> Tricuspid valve.<\/p>\nQuestion 7. Write the full form of the AV node.<\/strong>
\nAnswer:<\/strong> atrioventricular node.<\/p>\nQuestion 8. What are systole and diastole ?<\/strong>
\nAnswer:<\/strong> The term systole refers to contraction and the term diastole refers to relaxation.<\/p>\nQuestion 9. What is arteriosclerosis?<\/strong>
\nAnswer:<\/strong> It is a diseased condition caused by the hardening of arteries.<\/p>\nQuestion 10. What is a heart attack?<\/strong>
\nAnswer:<\/strong> It is an abnormal condition when a blood clot or other blockage cuts blood flow to a part of the heart.<\/p>\n <\/p>\n
Chapter 8 The Human Body Heart Short Answer Type Questions<\/h2>\n
Question 1. Write the functions and components of the circulatory system.<\/strong>
\nAnswer:<\/strong> The job of the circulatory system is to move blood, nutrients, oxygen, carbon dioxide, and hormones around the body. It consists of the heart, blood, and blood vessels, arteries-veins and capillaries.<\/p>\nQuestion 2. State the location of the heart in our body.<\/strong>
\nAnswer:<\/strong> The heart is located a little to the left of the middle of our chest and it is about the size of our fist. It sits behind our ribs on the left side of our body just next to our sternum.<\/p>\nQuestion 3. What are the four chambers of our heart?<\/strong>
\nAnswer:<\/strong> The human heart is divided into 4 chambers or parts: the two ventricles (lower parts) and two atria (upper parts).<\/p>\nWBBSE Class 6 Science Question Answer<\/strong><\/p>\nQuestion 4. What is dextrocardia?<\/strong>
\nAnswer:<\/strong> Normally, the heart is located on the left side of the chest. However, in rare cases, the heart can also be found on the right side of the chest; this condition is known as dextrocardia.<\/p>\nQuestion 5. What are the components of the heart wall?<\/strong>
\nAnswer:<\/strong> The heart wall consists of the epicardium (outer layer), the myocardium (middle layer comprised of cardiac muscle tissue), and the endocardium (inner lining of the myocardium that covers the heart valves).<\/p>\nQuestion 6. What are heart sounds?<\/strong>
\nAnswer:<\/strong> A healthy heart makes a lub-dub sound with each beat. This sound comes from the valves shutting on the blood inside the heart.<\/p>\nThe first sound (the lub) happens when the mitral and tricuspid valves close.<\/p>\n
The next sound (the dub) happens when the aortic and pulmonary valves close after the blood has been squeezed out of the heart.<\/p>\n
Question 7. What is a pulse?<\/strong>
\nAnswer:<\/strong> A pulse represents the tactile arterial palpation of the heartbeat by trained fingertips.<\/p>\nThe pulse may be palpated in any place that allows an artery to be compressed against a bone, such as at the neck (carotid artery), on the inside of the elbow (brachial artery), at the wrist (radial artery), etc.<\/p>\n
Question 8. What is heart muscle?<\/strong>
\nAnswer:<\/strong> Cardiac muscle (heart muscle) is an involuntary, striated muscle that is found in the walls and histological foundation of the heart, specifically the myocardium.<\/p>\nQuestion 9. What is a systemic loop of circulation?<\/strong>
\nAnswer:<\/strong> In the systemic loop, the blood circulates into the body’s systems, bringing oxygen to all its organs, structures, and tissues and collecting carbon dioxide waste.<\/p>\nQuestion 10. What is a pulmonary loop of circulation?<\/strong>
\nAnswer:<\/strong> In the pulmonary loop, the blood circulates to and from the lungs, to release the carbon dioxide and pick up new oxygen.<\/p>\nQuestion 11. What is atherosclerosis?<\/strong>
\nAnswer:<\/strong> It is a build-up of cholesterol and fat that makes the arteries narrower so less blood can flow through. Those build-ups are called plaque.<\/p>\nQuestion 12. What is arrhythmia?<\/strong>
\nAnswer:<\/strong> Arrhythmia is an irregular or abnormal heartbeat. This can be a slow heartbeat (bradycardia), a fast heartbeat (tachycardia), or an irregular heartbeat.<\/p>\nQuestion 13. Your friend suffers from breathing trouble while playing and therefore, prefers to <\/strong>
\nAnswer:<\/strong> Sit idle. What may be his disease in your opinion He may be suffering from either congenital heart disease or asthma.<\/p>\n <\/p>\n
Chapter 8 The Human Body Heart Long Answer Type Questions<\/h2>\n
Question 1. Write about the electrical conduction system of the heart.<\/strong>
\nAnswer:\u00a0<\/strong><\/p>\nConduction system:<\/strong><\/p>\nAn electrical impulse travels through the heart and initiates contractions in the chambers.<\/p>\n
The heart’s “spark plug” is an area of specialized heart tissue called the sino- atrial node (SA node), which is located in the right atrium.<\/p>\n
Each time the SA node “fires”, an electrical impulse is generated, that travels through the right and left atria, signaling these chambers to contract and pump blood into the ventricles.<\/p>\n
WBBSE Class 6 Science Question Answer<\/strong><\/p>\nIsidore to The impulse then travels into another area of specialized heart tissue called the atrioventricular node (AV node), which is located between the atria and the ventricles.<\/p>\n
The 2 electrical impulses are conducted through the AVA node and wire-like pathways (Bundle of His and d Purkinje fibers) to the ventricles, signaling the ventricles to contract and pump blood into the lungs and throughout the body.<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
As the SA node maintains the pace of the heartbeat, it is also known as a natural pacemaker. If it does not function, an artificial pacemaker has to be implanted.<\/p>\n
The normal sequence of electrical activation of the chambers of the heart is called sinus rhythm. It occurs each time the heart beats, usually about 60 to 80 times every minute.<\/p>\n
In a normal heartbeat, the atria contract simultaneously while the ventricles relax. Then, the ventricles relax, and the atria contract.<\/p>\n
The term systole refers to contraction and the term diastole refers to relaxation. A heartbeat consists of the systole and diastole of the atria and the systole and diastole of the ventricles.<\/p>\n
Problems of the Heart: You know how important your heart is, so it is no wonder people worry when they hear someone has heart problems.<\/p>\n
Heart disease, also called cardiovascular disease, mainly affects older. people and means that there are problems with the heart and blood vessels.<\/p>\n
You might know someone who has cardiovascular disease because several people in our society have some form of it.<\/p>\n
This disease includes a variety of problems, including high blood pressure, hardening of the arteries, chest pain, heart attacks, and strokes.<\/p>\n
Milanese te The heart is the center of the cardiovascular system. Through the body’s blood vessels, the d heart pumps blood to all of the body’s cells.<\/p>\n
WBBSE Class 6 Science Question Answer<\/strong><\/p>\nThe blood carries oxygen, which the cells need. Cardiovascular disease is a group of problems that occur when the heart and blood vessels are not working the way they should.<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
Here are some of the problems that go along with cardiovascular disease:<\/strong><\/p>\n1. Arteriosclerosis:<\/strong><\/p>\nAlso called hardening of the arteries, arteriosclerosis means the arteries become thickened and are no longer flexible.<\/p>\n
2. Atherosclerosis:<\/strong><\/p>\nA buildup of cholesterol things a risk factor. Some of these risk factors a and fat which makes the arteries narrower, so less blood can flow through. Those buildups are called plaque.<\/p>\n
3. Angina: <\/strong><\/p>\nPeople with angina feel pain in the chest which means the heart muscle is not getting enough blood and oxygen.<\/p>\n
4. Arrhythmia:<\/strong><\/p>\nIt is an irregular or abnormal er heartbeat. This can be a slow heartbeat en (bradycardia), a fast heartbeat (tachycardia), or an irregular heartbeat.<\/p>\n
5. Heart attack:<\/strong><\/p>\nWhen a blood clot or other blockage cuts blood flow to a part of the heart.<\/p>\n
6. Ischemic heart disease:<\/strong><\/p>\nA pathological condition of the heart muscle caused by lack of oxygen supply marked by pain and discomfort.<\/p>\n
7. Heart valve disease:<\/strong><\/p>\nIt occurs when one or more of the four valves in the heart are not working properly. Heart valves help to ensure that the blood being pumped through the heart keeps flowing forward.<\/p>\n
A disease of the heart valves (e.g., stenosis, mitral valve prolapse) makes it difficult for the heart to work efficiently.<\/p>\n
WBBSE Class 6 Science Question Answer<\/strong><\/p>\n8. Congenital heart disease:<\/strong><\/p>\nIt is a type of birth defect that causes problems with the heart at birth and occurs in about one out of every 100 live births.<\/p>\n
Some of the most common types of congenital heart disease include atrial septal defects (ASD) and ventricular septal defects (VSD).<\/p>\n
which occurs when the walls that separate the right and left chambers of the heart are not completely closed and consequently, there is a hole in the wall.<\/p>\n
Babies born with congenital heart disease (ASD) may not have symptoms. When they grow up, adults may notice symptoms such as shortness of breath, heart palpitations, fatigue, swelling in the legs, feet, or abdomen, etc.<\/p>\n
Symptoms of VSD include a bluish tinge to the skin, lips, and fingernails, along with poor feeding, poor weight gain, and fast breathing.<\/p>\n
Heart disease is not contagious-we cannot catch it like we can the flu or a cold. Instead, certain things increase a person’s chances of getting cardiovascular disease.<\/p>\n
Doctors call these people who can’t do anything about are like being older and having other people in the family who have had the same problems.<\/p>\n
But people do have control over some risk factors smoking, having high blood pressure, being overweight, and not exercising can increase the risk of getting cardiovascular disease.<\/p>\n
Question 2. State the importance of systemic and pulmonary loops of circulation.<\/strong>
\nAnswer:<\/strong><\/p>\nThe circulation of blood:<\/strong><\/p>\nThe human circulatory system is really a two-part system whose purpose is to bring oxygen-bearing blood to all the tissues of the body.<\/p>\n
When the heart contracts it pushes the blood out into two major loops or cycles.<\/p>\n
In the systemic loop, the blood circulates into the body’s systems, bringing oxygen to all its organs, structures, and tissues and collecting carbon dioxide waste.<\/p>\n
In the Pulmonary loop, the blood circulates to and from the lungs, to release the carbon dioxide and pick up new oxygen.<\/p>\n
The systemic cycle is controlled by the left side of the heart, and the pulmonary cycle by the right side of the heart. Let’s look at what happens during each cycle.<\/p>\n
The systemic loop begins when the oxygen-rich blood coming from the lungs enters the upper left chamber of the heart, the left atrium.<\/p>\n
As the chamber fills, the blood flows down through the mitral valve into the relaxing left ventricle. When the ventricles contract during a heartbeat, the blood on the left side is forced into the aorta.<\/p>\n
This largest artery of the body is an inch wide. The blood leaving the aorta brings oxygen to all the body’s cells through the network of ever-smaller arteries and capillaries.<\/p>\n
The used blood from the body returns to the heart through the network of veins. All of the blood from the body is eventually collected into the two largest veins the superior vena cava.<\/p>\n
<\/p>\n
Which receives blood from the upper body, and the inferior vena cava, which receives blood from the lower body region. Both venae cavae empty the blood into the right atrium of the heart.<\/p>\n
From here the blood begins its journey through the pulmonary cycle. From the right atrium, the blood descends into the right ventricle through the tricuspid valve.<\/p>\n
When the ventricles contract, the blood in the right ventricle is pushed into the pulmonary artery that branches into two main parts one going to the left lung, and one to the right lung.<\/p>\n
The fresh, oxygen-rich blood returns to the left atrium of the heart through the pulmonary veins.<\/p>\n
Although the circulatory system is made up of two cycles, both happen at the same time. The contraction of the heart muscle starts in the two atria, which push the blood into the ventricles.<\/p>\n
Then the walls of the ventricles squeeze together and force the blood out into the arteries: the aorta to the body and the pulmonary artery to the lungs.<\/p>\n
Afterward, the heart muscle relaxes, allowing blood to flow in from the veins and fill the atria again.<\/p>\n
In healthy people, the normal (resting) heart rate is about 72 beats per minute, but it can go much higher during strenuous exercise.<\/p>\n
Scientists have estimated that it takes about 30 seconds for a given portion of the blood to complete the<\/p>\n
Entire cycle:<\/strong><\/p>\nfrom lungs to heart to body, back to the heart, and out to the lungs.<\/p>\n
Conduction system:<\/strong><\/p>\nAn electrical impulse travels through the heart and initiates contractions in the chambers.<\/p>\n
The heart’s “spark plug” is an area of specialized heart tissue called the sino- atrial node (SA node), which is located in the right atrium.<\/p>\n
Each time the SA node “fires”, an electrical impulse is generated, that travels through the right and left atria, signaling these chambers to contract and pump blood into the ventricles.<\/p>\n
Isidore to The impulse then travels into another area of specialized heart tissue called the atrioventricular node (AV node), which is located between the atria and the ventricles.<\/p>\n
The 2 electrical impulses are conducted through the AVA node and wire-like pathways (Bundle of His and d Purkinje fibers) to the ventricles, signaling the ventricles to contract and pump blood into the lungs and throughout the body.<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
As the SA node maintains the pace of the heartbeat, it is also known as a natural pacemaker. If it does not function, an artificial pacemaker has to be implanted.<\/p>\n
The normal sequence of electrical activation of the chambers of the heart is called sinus rhythm. It occurs each time the heart beats, usually about 60 to 80 times every minute.<\/p>\n
In a normal heartbeat, the atria contract simultaneously while the ventricles relax. Then, the ventricles relax, and the atria contract.<\/p>\n
The term systole refers to contraction and the term diastole refers to relaxation. A heartbeat consists of the systole and diastole of the atria and the systole and diastole of the ventricles.<\/p>\n
Problems of the Heart: You know how important your heart is, so it is no wonder people worry when they hear someone has heart problems.<\/p>\n
Heart disease, also called cardiovascular disease, mainly affects older. people and means that there are problems with the heart and blood vessels.<\/p>\n
You might know someone who has cardiovascular disease because several people in our society have some form of it.<\/p>\n
This disease includes a variety of problems, including high blood pressure, hardening of the arteries, chest pain, heart attacks, and strokes.<\/p>\n
Milanese te The heart is the center of the cardiovascular system. Through the body’s blood vessels, the d heart pumps blood to all of the body’s cells.<\/p>\n
The blood carries oxygen, which the cells need. A cardiovascular disease is a group of problems that occur when the heart and blood vessels are not working the way they should.<\/p>\n
<\/p>\n
Question 3. What are congenital heart diseases?<\/strong>
\nAnswer<\/strong>:<\/p>\nProblems of the Heart:<\/strong><\/p>\nYou know how important your heart is, so it is no wonder people worry when they hear someone has heart problems. Heart disease, also called.<\/p>\n
Cardiovascular disease:\u00a0<\/strong><\/p>\nMainly affects older. people and means that there are problems with the heart and blood vessels.<\/p>\n
You might know someone who has cardiovascular disease because several people in our society have some form of it.<\/p>\n
This disease includes a variety of problems, including high blood pressure, hardening of the arteries, chest pain, heart attacks, and strokes.<\/p>\n
Milanese te The heart is the center of the cardiovascular system. Through the body’s blood vessels, the d heart pumps blood to all of the body’s cells.<\/p>\n
The blood carries oxygen, which the cells need. Cardiovascular disease is a group of problems that occur when the heart and blood vessels are not working the way they should.<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
Here are some of the problems that go along with cardiovascular disease:<\/strong><\/p>\n1. Arteriosclerosis:<\/strong><\/p>\nAlso called hardening of the arteries, arteriosclerosis means the arteries become thickened and are no longer flexible.<\/p>\n
2. Atherosclerosis:<\/strong><\/p>\nA buildup of cholesterol things a risk factor. Some of these risk factors a and fat which makes the arteries narrower, so less blood can flow through. Those buildups are called plaque.<\/p>\n
3. Angina: <\/strong><\/p>\nPeople with angina feel pain in the chest which means the heart muscle is not getting enough blood and oxygen.<\/p>\n
4. Arrhythmia:<\/strong><\/p>\nIt is an irregular or abnormal er heartbeat. This can be a slow heartbeat en (bradycardia), a fast heartbeat (tachycardia), or an irregular heartbeat.<\/p>\n
5. Heart attack:<\/strong><\/p>\nWhen a blood clot or other blockage cuts blood flow to a part of the heart.<\/p>\n
6. Ischemic heart disease:<\/strong><\/p>\nA pathological condition of the heart muscle caused by lack of oxygen supply marked by pain and discomfort.<\/p>\n
7. Heart valve disease:<\/strong><\/p>\nIt occurs when one or more of the four valves in the heart are not working properly. Heart valves help to ensure that the blood being pumped through the heart keeps flowing forward.<\/p>\n
A disease of the heart valves (e.g., stenosis, mitral valve prolapse) makes it difficult for the heart to work efficiently.<\/p>\n
8. Congenital heart disease:<\/strong><\/p>\nIt is a type of birth defect that causes problems with the heart at birth and occurs in about one out of every 100 live births.<\/p>\n
Some of the most common types of congenital heart disease include atrial septal defects (ASD) and ventricular septal defects (VSD).<\/p>\n
which occurs when the walls that separate the right and left chambers of the heart are not completely closed and consequently, there is a hole in the wall.<\/p>\n
Babies born with congenital heart disease (ASD) may not have symptoms. When they grow up, adults may notice symptoms such as shortness of breath, heart palpitations, fatigue, swelling in the legs, feet, or abdomen, etc.<\/p>\n
Symptoms of VSD include a bluish tinge to the skin, lips, and fingernails, along with poor feeding, poor weight gain, and fast breathing.<\/p>\n
Heart disease is not contagious-we cannot catch it like we can the flu or a cold. Instead, certain things increase a person’s chances of getting cardiovascular disease.<\/p>\n
Doctors call these people who can’t do anything about are like being older and having other people in the family who have had the same problems.<\/p>\n
But people do have control over some risk factors smoking, having high blood pressure, being overweight, and not exercising can increase the risk of getting cardiovascular disease.<\/p>\n
<\/p>\n
Chapter 8 The Human Body Blood Review Questions Environment Review Questions MCQ<\/h2>\n
Question 1. Blood is a type of<\/p>\n
\n- Tissue<\/li>\n
- Organ<\/li>\n
- Cell<\/li>\n
- System<\/li>\n<\/ol>\n
Answer: 1. Tissue<\/p>\n
Question 2. Red blood cells are created inside<\/p>\n
\n- Heart<\/li>\n
- Kidney<\/li>\n
- Bone marrow<\/li>\n
- Liver<\/li>\n<\/ol>\n
Anawer: 3. Bone marrow<\/p>\n
Question 3. The average blood volume in the adult body is about<\/p>\n
\n- 2 liters<\/li>\n
- 3 liters<\/li>\n
- 5 liters<\/li>\n
- 1 liter<\/li>\n<\/ol>\n
Answer: 3. 5 liters<\/p>\n
Question 4. Oxygen is transported throughout the body<\/p>\n
\n- White blood cells<\/li>\n
- Red blood cells<\/li>\n
- Platelets<\/li>\n
- Plasma<\/li>\n<\/ol>\n
Answer: 2. Red blood cells<\/p>\n
Question 5. The color of our plasma is<\/p>\n
\n- Reddish<\/li>\n
- Greenish<\/li>\n
- Bluish<\/li>\n
- Yellowish<\/li>\n<\/ol>\n
Answer: 4. Yellowish<\/p>\n
Question 6. The color of RBC is due to<\/p>\n
\n- Chlorophyll<\/li>\n
- Haemocyanin<\/li>\n
- Haemoglobin<\/li>\n
- None of the above<\/li>\n<\/ol>\n
Answer: 2. Haemocyanin<\/p>\n
Question 7. WBC is also called<\/p>\n
\n- Neutrophil<\/li>\n
- Basophil<\/li>\n
- Leucocyte<\/li>\n
- Erythrocyte<\/li>\n<\/ol>\n
Answer: 3. Leucocyte<\/p>\n
Question 8. Platelets help in<\/p>\n
\n- Blood clotting<\/li>\n
- Controlling blood sugar<\/li>\n
- Immunity<\/li>\n
- Oxygen carriage<\/li>\n<\/ol>\n
Answer: 1. Blood clotting<\/p>\n
Question 9. A lower-than-normal number of red cells in the<\/p>\n
\n- Malaria<\/li>\n
- Leukemia<\/li>\n
- AIDS<\/li>\n
- Anaemia<\/li>\n<\/ol>\n
Answer: 4. Anaemia<\/p>\n
Question 10. The function of WBC is<\/p>\n
\n- To carry O2 from the lungs to different parts of<\/li>\n
- to build up immunity<\/li>\n
- to coagulate blood<\/li>\n
- none of these<\/li>\n<\/ol>\n
Answer: 2. to build up immunity<\/p>\n
<\/p>\n
Chapter 8 The Human Body Blood Fill in the Blanks<\/h2>\n
Question 1. _________ blood cells fight infections.
\nAnswer: White<\/p>\n
Question 2. _________ is a yellowish liquid that carries nutrients and proteins throughout the body.
\nAnswer: Plasma<\/p>\n
Question 3. Bone marrow makes the _________ cells.
\nAnswer: Blood<\/p>\n
Question 4. Red blood cells are also known as _________
\nAnswer: Erythrocytes<\/p>\n
Question 5 Granulocytes may be of 3 different types Neutrophil, _________ and Basophil.
\nAnswer: Eosinophil<\/p>\n
Question 6. There are two types of lymphocytes _________ cells and T cells.
\nAnswer: B<\/p>\n
Question 7. Rh protein was first found in _________ monkeys.
\nAnswer: Rhesus<\/p>\n
Question 8. _________ are cancers of the cells that produce WBCs.
\nAnswer: Leukaemia<\/p>\n
<\/p>\n
Chapter 8 The Human Body Blood Identify As True Or False<\/h2>\n
Question 1. Bone marrow makes blood cells.
\nAnswer: True<\/p>\n
Question 2. Plasma is a type of blood cell.
\nAnswer: False<\/p>\n
Question 3. Mature RBCs of our body are multinucleated.
\nAnswer: False<\/p>\n
Question 4. While blood cells are bigger than red blood cells.
\nAnswer: True<\/p>\n
Question False<\/p>\n
Question 6. Platelets are cell fractions.
\nAnswer: True<\/p>\n
Question 7. Plasma is yellowish in color.
\nAnswer: True<\/p>\n
Question 8. Getting blood of the wrong type can make a person sick.
\nAnswer: True<\/p>\n
Question 9. Anaemia is accompanied by an increase in the amount of hemoglobin present in the blood.
\nAnswer: False<\/p>\n
<\/p>\n
Chapter 8 The Human Body Blood Match the Column<\/h2>\n
<\/p>\n
![\"WBBSE](\"https:\/\/wbbsesolutions.net\/wp-content\/uploads\/2023\/05\/WBBSE-Solutions-for-class-6-chapter-8-the-human-body-match-the-columns-blood-table-1.png\")
\nAnswer:<\/strong> 1-C-4,2-D-3,3-B-2,4-A-1<\/span><\/p>\n <\/p>\n
Chapter 8 The Human Body Blood Answer In Words Or A Sentence<\/h2>\n
Question 1. Where in our body, blood cells are produced?<\/strong>
\nAnswer:<\/strong> From bone marrow.<\/p>\nQuestion 2. Which organ pumps blood in our body?<\/strong>
\nAnswer:<\/strong> Heart.<\/p>\nQuestion 3. Which of our blood cells is non-nucleated?<\/strong>
\nAnswer:<\/strong> RBC or Erythrocytes.<\/p>\nQuestion 4. What are granulocytes?<\/strong>
\nAnswer:<\/strong> These are WBC with granular cytoplasm.<\/p>\nQuestion 5. What are the types of lymphocytes?<\/strong>
\nAnswer:<\/strong> Lymphocytes are of two types – B and T lymphocytes.<\/p>\nQuestion 6. State the function of platelets.<\/strong>
\nAnswer:<\/strong> To help blood clotting.<\/p>\n <\/p>\n
Chapter 8 The Human Body Blood Short Answer Type Questions<\/h2>\n
Question 1. What are RBCs?<\/strong>
\nAnswer:<\/strong> Red blood cells (RBCs), also called erythrocytes, are the most common type of blood cell and are the principal means of delivering oxygen (O2) to the body tissues- via blood flow through the circulatory system.<\/p>\nQuestion 2. What are WBCs?<\/strong>
\nAnswer:<\/strong> White blood cells (WBCs), also called leucocytes, are the cells of the blood that are involved in protecting the body against infectious diseases caused by foreign invaders.<\/p>\nQuestion 3. What are monocytes?<\/strong>
\nAnswer:<\/strong> Monocytes are white blood cells that fight infection by surrounding and destroying bacteria and viruses.<\/p>\nQuestion 4. What is blood plasma?<\/strong>
\nAnswer:<\/strong> Blood plasma is the pale straw (yellow) colored liquid component of blood that normally holds the blood cells in whole blood in suspension; this makes plasma the extracellular matrix of blood cells.<\/p>\nIt makes up about 55% of the body’s total blood volume.<\/p>\n
Question 5. What is anemia?<\/strong>
\nAnswer:<\/strong> The most common condition affecting the red blood cells of teens is anemia, a lower-than-normal number of red cells in the blood.<\/p>\nAnaemia is accompanied by a decrease in the amount of hemoglobin present in the blood.<\/p>\n
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Chapter 8 The Human Body Blood Long Answer Type Questions<\/h2>\n
Question 1. Write about the components of blood.<\/strong>
\nAnswer:<\/strong><\/p>\nComponents of blood:<\/strong><\/p>\n