Chapter 6 The Structure Of Living Organisms Review Questions MCQs
Question 1. Which one of the following is non-living
- Mimosa plant
- House fly
- Wooden log
- Bacteria
Answer: 3. Wooden log
Question 2. Though non-living, it is produced from a living organism
- Stone,
- Wooden chair
- Coal
- Brick
Answer: 1. Stone,
Question 3. As a ‘brick is to a house/ similar is
- Cell to a living body
- Stomach to intestine
- Eye to brain
- Organ to tissue
Answer: 1. Cell to a living body
Question 4. The structural unit of our body is
- Brick
- Cell
- Lung
- Organ
Answer: 2. Organ
Read And Learn More WBBSE Solutions For Class 8 School Science Review Questions
Question 5. Lysosome arises from
- Endoplasmic reticulum
- Nucleus
- Mitochondria
- Golgi apparatus
Answer: 4. Golgi apparatus
Question 6. The term cell was coined by
- Robert Hooke
- Darwin
- Franklin
- C. Golgi
Answer: 1. Robert Hooke
Question 7. Which one is not a light microscope?
- Simple microscope,
- Compound microscope,
- Electron microscope
- None of these
Answer: 3. Electron microscope
Question 8. Unicellular organism is
- Amoeba
- Leucocyte
- Mosquito
- Hydra
Answer: 1. Amoeba
Question 9. Muscle cells of our body are
- Round shaped
- Star-shaped
- Spindle-shaped
- Spiral shaped
Answer: 3. Spindle-shaped
Question 10. Nerve cells can
- Carry oxygen
- Receive environmental stimulation
- Contract and relax
- Undergo cell division
Answer: 2. Receive environmental stimulation
Question 11. Cells are generally measured by unit
- Nanometre
- Metre
- Millimetre
- None of these
Answer: 1. Nanometre
Question 12. Chlorophyll is present in
- Stroma
- Cristae
- Quantosome
- Grana
Answer: 4. Grana
Question 13. In plants, new organs are formed from
- Connective tissue
- Permanent tissue
- Meristematic tissue
- None of these
Answer: 3. Meristematic tissue
Question 14. An outer protective layer of our body contains
- Epithelial tissue
- Muscular tissue
- Connective tissue
- Skeletal tissue
Answer: 1. Epithelial tissue
Question 15. Centrosomes are present in
- Prokaryotes
- Animal cells
- Plant cells
- Viruses
Answer: 2. Animal cells
Question 16. Animal cells do not contain
- Plastids
- Mitochondria
- Nucleus
- Vacuoles
Answer: 1. Plastids
Question 17. Generally, the largest vacuoles are found in
- Animal cells
- Nerve cells
- Plant cells
- None of these
Answer: 3. Plant cells
Question 18. Nucleic acids are not found within
- Cell membrane
- Mitochondria
- Plastids
- All of these
Answer: 1. Cell membrane
Question 19. Double membrane-bound cell organelles are
- Mitochondria
- Golgi bodies
- Ribosomes
- Lysosomes
Answer: 1. Mitochondria
Question 20. Membraneless cell organelles are
- Golgi bodies
- Ribosomes
- Plastids
- Nucleus
Answer: 2. Ribosomes
Question 21. Cell organelles associated with secretion are
- Mitochondria
- Vacuoles
- Golgi bodies
- Cell wall
Answer: 3. Golgi bodies
Question 22. A dry and hot environment is found in
- Desert region
- Polar region
- Aquatic region
- Marshy region
Answer: 1. Desert region
Question 23. Animals living in very dry and cold environments have
- Antifreeze protein
- Vacuoles
- Mesosomes
- Streamlined body
Answer: 1. Antifreeze protein
Question 24. The number of RBCs increases in
- High altitude
- Low altitude
- Desert environment
- Forest environment
Answer: 1. High altitude
Question 25. The part of protoplasm inside the nucleus is known as
- Endoplasm
- Nucleoplasm,
- Cytoplasm
- Ectoplasm
Answer: 1. Endoplasm
Question 26. The parenchyma cells filled with air vacuoles are known as
- Sclerenchyma,
- Collenchyma
- Aerenchyma
- Mesenchyma
Answer: 3. Aerenchyma
Question 27. Two autonomous cell organelles are
- Mitochondria and chloroplastid
- Mitochondria and golgi bodies
- Plastid and centriole
- Cell membrane and cell wall
Answer: 1. Mitochondria and chloroplastid
Question 28. Which type of microscope is used for observing two sections of root, stem and leaf?
- Simple light microscope
- Compound light microscope
- Electron microscope
- All of these
Answer: 2. Compound light microscope
Question 29. Rod-like cells are found in our
- Retina of eye
- Cornea of eye
- Lung
- Brain
Answer: 1. Retina of the eye
Question 30. The longest cell in our body is
- White blood corpuscles
- Ovum
- Nerve cell
- Liver cells
Answer: 3. Nerve cell
Question 31. The cell organelle which directly helps in protein synthesis is
- Ribosome
- Nucleus
- Endoplasmic reticulum
- Mesosome
Answer: 1. Ribosome
Question 32. The brain of a cell is
- Nucleus
- Mitochondria
- Lysosome
- Vacuoles
Answer: 1. Nucleus
Question 33. Which organelle may be considered a suicide bag?
- Ribosome
- Mitochondria
- Golgi bodies
- Lysosome
Answer: 4. Lysosome
Question 34. The powerhouse of the cell is
- Nucleus
- Mitochondria
- Vacuole
- Ribosome
Answer: 2. Mitochondria
Question 35. An electron microscope uses
- Magnetic ocular lens
- Objective lens
- Photographic film
- Simple lens
Answer: 1. Magnetic ocular lens
Question 36. Hereditary characteristics are stored in
- Nucleic acid
- Protein
- Atp
- Cytosol
Answer: 1. Nucleic acid
Question 37. Grana is found within
- Chloroplastid
- Ribosomes
- Nucleus
- Centrosome
Answer: 1. Chloroplastid
Question 38. Bacterial cells perform respiration by
- Plastid
- Mitochondria
- Mesosome
- None of these
Answer: 3. Mesosome
Question 39. Cactuses are adapted for
- Aquatic environment
- Desert
- Hills
- Saline rich marshes
Answer: 2. Desert
Question 40. Coloured petals contain
- Chloroplastid,
- Chromoplastid
- Leucoplastid
- All of these
Answer: 2. Chromoplastid
Question 41. Increase of activity of which of the following cell organelle leads to cancer?
- Mitochondria
- Golgi body
- Ribosome
- Lysosome
Answer: 4. Lysosome
Question 42. The undefined nuclear region of prokaryotes is also known as
- Nucleus
- Nucleolus
- Nucleic acid
- Nucleoid
Answer: 4. Nucleoid
Question 43. Which of the following is not a function of the vacuole?
- Storage
- Providing turgidity and rigidity to the cell
- Locomotion
- Waste excretion
Answer: 3. Locomotion
Question 44. Antifreeze proteins are found in
- Kangaroo
- Piranha
- Polar fish
- Deer
Answer: 3. Polar fish
Chapter 6 The Structure Of Living Organisms Fill In The Blanks
Question 1. Bacteria are __________ cells.
Answer: Prokaryotic
Question 2. Protoplasm is made up of nucleoplasm and __________
Answer: Cytoplasm
Question 3. __________ causes the colour of a flower.
Answer: Chromoplastid
Question 4. The cell membrane is __________ but the cell wall is
Answer: Living, dead
Question 5. The nucleus of bacteria is known as __________.
Answer: Nucleoid
Question 6. Plastids are present only in __________ cells.
Answer: Plant
Question 7. Cristae are found within __________.
Answer: Mitochondria
Question 8. __________ is a cell organelle without a membrane.
Answer: Ribosome
Question 9. The plastids present in the root are __________.
Answer: Leucoplastic
Question 10. The dense round dots within the nucleus are known as __________.
Answer: Nucleolus
Question 11. __________ contain chlorophyll pigment.
Answer: Chloroplastid
Question 12. Autolysis of a cell is performed by __________.
Answer: Lysosome
Question 13. The secretory activity of a cell is performed by __________
Answer: Golgi bodies
Question 14. __________ are considered units of a living body.
Answer: Cells
Question 15. Blood is a liquid __________ tissue.
Answer: Connective
Question 16. Root tips contain __________ tissue.
Answer: Meristematic
Question 17. Adipose tissue cells store __________
Answer: Fat
Question 18. The network-like structure within the nucleus is known as nuclear.
Answer: Reticulum
Question 19. Sulphur bacteria can survive in temperature.
Answer: High
Question 20. Haemoglobin is present within our blood corpuscles.
Answer: Red
Question 21. Huge calcium is found in the cells of.
Answer: Bones
Question 22. Salt-storing cells are found in plants growing in water.
Answer: Saline
Question 23. proteins prevent ice formation within the cytoplasm.
Answer: Antifreeze
Question 24. substitute mitochondria in bacteria.
Answer: Masosome
Question 25. An environment with high pressure is found in the sea.
Answer: Deep
Question 26. Primordial utricle is found in cell.
Answer: Plant
Question 27. Four types of animal tissues are epithelial, nervous and connective.
Answer: Muscular
Question 28. The majority of cells are 5 to 10 in size.
Answer: micron
Question 29. The kidney helps in the elimination of waste.
Answer: Metabolic
Question 30. Cells can be observed under
Answer: Microscope
Chapter 6 The Structure Of Living Organisms Identify As ‘True’ Or ‘False’
Question 1. The lung is associated with blood circulation.
Answer: False
Question 2. The heart is a blood circulation organ.
Answer: True
Question 3. A cell is the unit of a living body.
Answer: True
Question 4. Leeuwenhoek observed dead cork cells.
Answer: False
Question 5. Simple light microscopes have magnifications of about 2000X.
Answer: False
Question 6. In the electron microscope, visible light is the source of illumination.
Answer: False
Question 7. Elephants and Amoeba are multicellular organisms.
Answer: False
Question 8. Fat is stored beneath our skin.
Answer: True
Question 9. Leucocytes can change their shape.
Answer: True
Question 10. Muscle cells are generally star-shaped.
Answer: False
Question 11. The nerve cell is the longest cell in the human body.
Answer: True
Question 12. A small single visible dot may contain hundreds of cells.
Answer: True
Question 13. Permanent tissue provides mechanical strength to plants.
Answer: True
Question 14. Cells can be stained by fountain pen ink.
Answer: False
Question 15. Centrosomes lack membranes.
Answer: True
Question 16. DNA is found inside Golgi bodies.
Answer: False
Question 17. All endoplasmic reticulums are smooth in outline.
Answer: False
Question 18. – Ribosomes are covered by a double membrane.
Answer: False
Question 19. The cell wall is porous.
Answer: True
Question 20. A saline environment is found in estuaries.
Answer: True
Question 21. Cacti can grow in the desert
Answer: True
Question 22. At high altitudes, the number of RBCs in the blood decreases.
Answer: False
Question 23. Microbes are visible under the naked eye.
Answer: True
Question 24. Stages of body organization are: cell tissue -> organ -» system
Answer: True
Question 25. Mitochondria is absent in bacteria.
Answer: True
Chapter 6 The Structure Of Living Organisms Match The Columns
1.
Column – A | Column – B |
A. Stomach | 1. Circulation |
B. Lung | 2. Excretion |
C. Heart | 3. Digestion |
D. Kidney | 4. Respiration |
Answer: A-3, B-4,C-1,D-2
2.
Column – A | Column – B |
A. Epithelial tissue | 1. Mechanical strength and framework |
B. Connective tissue | 2. Conduction of impulse |
C. Muscular tissue | 3. Outer covering |
D. Nervous tissue | 4. Contraction- |
Answer: A-3, B-1,C-4,D-2
3.
Column – A | Column – B |
A. Mitochondria | 1. Protein synthesis |
B. Golgi Body | 2. Secretion |
C. Lysosome | 3. Energy production |
D. Ribosome | 4. Cellular destruction |
Answer: A-3, B-2,C-4,D-1
4.
Column – A | Column – B |
A. Dry and very hot | 1. Polar region |
B. Dry and very cold | 2. Pond, River |
C. Aquatic | 3. Ocean, Estuaries |
D. Saline | 4. Desert region |
Answer: A-4, B-1,C-2,D-3
5.
Column – A | Column – B |
A. Antifreeze protein | 1. Floating |
B. Aerenchyma | 2. Prevent ice formation |
C. Mesosome | 3. Sulphur bacteria |
D. High temperature | 4. Respiration |
Answer: A-2, B-1,C-4,D-3