NCERT Class 11 Biology Chemical Coordination and integration

EXERCISES

1. Define the following:

  (a) Exocrine gland

  (b) Endocrine gland

  (c) Hormone

2. Diagrammatically indicate the location of the various endocrine glands in our body.

3. List the hormones secreted by the following:

  (a) Hypothalamus (b) Pituitary (c) Thyroid (d) Parathyroid

  (e) Adrenal (f) Pancreas (g) Testis (h) Ovary

  (i) Thymus (j) Atrium (k) Kidney (l) G-I Tract

4. Fill in the blanks:

Hormones Target gland

  (a) Hypothalamic hormones __________________

  (b) Thyrotrophin (TSH) __________________

  (c) Corticotrophin (ACTH) __________________

  (d) Gonadotrophins (LH, FSH) __________________

  (e) Melanotrophin (MSH) __________________

5. Write short notes on the functions of the following hormones:

  (a) Parathyroid hormone (PTH) (b) Thyroid hormones

  (c) Thymosins (d) Androgens

  (e) Estrogens (f) Insulin and Glucagon

6. Give example(s) of:

  (a) Hyperglycemic hormone and hypoglycemic hormone

  (b) Hypercalcemic hormone

  (c) Gonadotrophic hormones

  (d) Progestational hormone

  (e) Blood pressure lowering hormone

  (f) Androgens and estrogens

7. Which hormonal deficiency is responsible for the following:

  (a) Diabetes mellitus (b) Goitre (c) Cretinism

8. Briefly mention the mechanism of action of FSH.

9. Match the following:

Column I            Column II

(a) T4                  (i) Hypothalamus

(b) PTH               (ii) Thyroid

(c) GnRH             (iii) Pituitary

(d) LH                  (iv) Parathyroid

Please refer to attached file for NCERT Class 11 Biology - Chemical Coordination and integration