WBBSE Solutions For Class 8 School Science Chapter 9 Endocrine System and Adolescence Very Short Answer Type Questions

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Chapter 9 Endocrine System And Adolescence VSAQs

Question 1. What is adolescence?
Answer:

Adolescence:

Adolescence describes the teenage years between 13 and 19 and can be considered the transitional stage from childhood to adulthood.

Question 2. Write the origin of the word ‘adolescence’.
Answer:

The word ‘adolescence’ comes from the Latin word ‘adolescence’ which means ‘to grow’.

Question 3. What is puberty?
Answer:

Puberty:

Puberty is the time in which a child’s sexual and physical characteristics mature.

Question 4. What is the main reason behind puberty?
Answer:

Main Reason behind puberty:

During puberty, various endocrine glands produce hormones that cause body changes and the development of secondary sex characteristics.

Question 5. What are hormones?
Answer:

Hormones:

Hormones are chemical messengers secreted into the blood or extracellular fluid by one cell that affect the functioning of other cells.

Read And Learn More WBBSE Solutions For Class 8 School Science Very Short Answer Type Questions

Question 6. What is meant by target cells of hormones?
Answer:

Target cells of hormones:

A given hormone usually affects only a limited number of cells, which are called target cells.

Question 7. How does a target cell response to a hormone?
Answer:

A target cell responds to a hormone because it bears receptors for the hormone.

Question 8. What are endocrine glands?
Answer:

Endocrine glands:

Glands that do not have tubes. They secrete hormones. Example- the pituitary gland.

Question 9. What are exocrine glands?
Answer:

Exocrine glands:

Glands that have ducts are called exocrine glands. They generally secrete enzymes. Example- salivary gland.

Question 10. Why endocrine responses are generally slow?
Answer:

Endocrine responses are slow because hormones must travel through the blood to reach their target organs.

Question 11. Name two mixed glands, other than the pancreas.
Answer:

Testes and ovaries are mixed glands.

Question 12. Which endocrine gland is situated above the kidney?
Answer:

Adrenal (Hence it is also known as supra renal gland).

Question 13. Which hormone has iodine as its component?
Answer:

Thyroxin

Question 14. Deficiency of which hormone causes diabetes insipid?
Answer:

Antidiuretic hormone or ADH.

Question 15. Deficiency of which hormone causes diabetes mellitus?
Answer:

Insulin.

Question 16. Which endocrine gland is considered a master gland?
Answer:

Pituitary.

Question 17. Deficiency of which hormone causes cretinism?
Answer:

Thyroxin.

Question 18. Deficiency of which hormone causes dwarfism?
Answer:

Somatotrophic hormone or STH.

Question 19. Excess of which hormone causes gigantism?
Answer:

Somatotrophic hormone or STH.

Question 20. Hyper-function of which hormone causes exophthalmic goiter?
Answer:

Thyroxin.

Question 21. Which hormone stimulates the adrenal gland?
Answer:

ACTH.

Question 22. Which hormone stimulates the thyroid gland?
Answer:

TSH.

Question 23. Name a hormone produced by the testes.
Answer:

Testosterone.

Question 24. Which hormone helps in the regulation of blood pressure?
Answer:

Vasopressin.

Question 25. Deficiency of which hormone causes an increase in blood glucose level?
Answer:

Insulin.

Question 26. Name the hormone antagonistic to insulin.
Answer:

Glucagon.

Question 27. What is hyperglycemia?
Answer:

Hyperglycemia:

Increase in blood glucose level.

Question 28. Name a local hormone.
Answer:

Gastrin, secreted from the stomach.

Question 29. Which hormone helps in milk secretion?
Answer:

Prolactin.

Question 30. Name two steroid hormones.
Answer:

Estrogen and progesterone.

Question 31. What is the other name for pituitary?
Answer:

Hypophysis.

Question 32. What causes tetany?
Answer:

Tetany:

Deficiency of parathormone.

Question 33. Which endocrine gland produces gonadotrophic hormones?
Answer:

Anterior part of the pituitary.

Question 34. Which hormone is considered an emergency hormone?
Answer:

Adrenalin.

Question 35. What causes pimples and acne?
Answer:

Hormonal changes.

Question 36. State a symptom of fear.
Answer:

Palpitation.

Question 37. Which education helps in decision-making, critical thinking, etc?
Answer:

Skill education.

Question 38. What is emotion management?
Answer:

Emotion management:

Identifying our emotions and learning to express them.

Question 39. Name the smallest endocrine gland of the human body.
Answer:

Pineal body is attached to the roof of the third ventricle of the brain.

Question 40. What do you mean by life skill education?
Answer:

Life skill education is a special behavior that helps us to face various needs and challenges boldly.

Question 41. Name the hormone which develops secondary sexual characteristics :
Answer:

  1. In females (girls)
  2. In males (boys)
  3. Estrogen
  4. Testosterone

Question 42. Which of the two has a smaller voice box: grown-up boys or grown-up girls?
Answer:

Grown-up girls.

Question 43. Mention a few feelings associated with adolescence.
Answer:

Fear, anger, crying, depression, offense, etc.

Question 44. What do you mean by emotion management?
Answer:

Emotion Management:

Emotion management refers to controlling the uncontrolled expression of happiness, anger, or sorrow which would otherwise affect our physical and mental health.

Question 45. Mention a few examples of risky behaviors associated with the adolescent period.
Answer:

Uncontrolled burning of crackers Excessive honking Drug addiction etc.

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