MCQ Questions for Class 11 Biology Chapter 22 Chemical Coordination and Integration with Answers

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Chemical Coordination and Integration Class 11 MCQs Questions with Answers

Solving Chemical Coordination and Integration Multiple Choice Questions of Class 11 Biology Chapter 22 MCQ can be really beneficial because you will be familiar with all of the topics. These MCQ Questions on Chemical Coordination and Integration Class 11 with answers provide for a quick review of the Chapter, allowing you to have a better understanding of the subject.

I. Select the correct answer from the following questions:

Question 1.
Blood pressure is under the control of
(a) Pituitary
(b) Adrenal
(c) Thyroid
(d) Thymus

Answer

Answer: (b) Adrenal


Question 2.
Master endocrine gland is
(a) Pituitary
(b) Parathyroid
(c) Thyroid
(d) Pineal

Answer

Answer: (a) Pituitary


Question 3.
Largest completely endocrine gland is
(a) Adrenal
(b) Thyroid
(c) Pituitary
(d) Parathyroid

Answer

Answer: (b) Thyroid


Question 4.
Implantation of embryo and production of placenta in controlled
(a) FSH
(b) Oestrogen
(c) Progesterone
(d) Estradiol

Answer

Answer: (c) Progesterone


Question 5.
Insulin is secreted by pancreas in
(a) Acinus
(b) a cells
(c) P cells
(d) y cells

Answer

Answer: (c) P-cells


Question 6.
Hormone is
(a) Nerve impulse
(b) Chemical messenger
(c) Excretory product
(d) Enzymatic product

Answer

Answer: (b) Chemical messenger


Question 7.
The hormone that causes change in appearance of males during puberty is
(a) Thyroxine
(b) Progesterone
(c) Testosterone
(d) Oestrogen

Answer

Answer: (c) Testosterone.


Question 8.
Diabetes insipides is caused by reduced activity in
(a) Thyroid
(b) Anterior lobe of pituitary
(c) Intermediate pituitary lobe
(d) Posterior lobe of pituitary

Answer

Answer: (d) Posterior lobe of pituitary


Question 9.
The hormone converts glucose to glycogen inside liver, is pro-duced in
(a) Thymus
(b) Pancreas
(c) Parathyroid
(d) Adrenal

Answer

Answer: (b) Pancreas


Question 10.
Iodine of iodised salt is stored in
(a) Pituitary
(b) Thyroid
(c) Liver
(d) Parathyroid

Answer

Answer: (b) Thyroid


Question 11.
Hormone produced during emotional stress is
(a) Adrenaline
(b) Melatoijiri
(c) Calcitonin
(d) Norepinephrine

Answer

Answer: (a) Adrenaline


Question 12.
Which of the following is a hormonal disease
(a) Scurvy
(b) Malaria
(c) Prolactin
(d) Insulin

Answer

Answer: (d) Insulin


Question 13.
Adrenaline is secreted by
(a) Adrenal medulla
(b) Thymus
(c) Pineal
(d) Adrenal cortex

Answer

Answer: (a) Adrenal medulla


Question 14.
Control of body temperature depends on the
(a) Pancreas
(b) Medulla
(c) Pituitary
(d) Hypothalamus

Answer

Answer: (b) Medulla


Question 15.
Which of the following is not an endocrine gland:
(a) Thyroid
(b) Pancreas
(c) Pituitary
(d) Sebaceous

Answer

Answer: (d) Sebaceous


Question 16.
The excess secretion of a growth hormone during adulthood produces
(a) Acromegaly
(b) Myxoedema
(c) Dwarf
(d) Giant

Answer

Answer: (a) Acromegaly


Question 17.
Estrogen is produced by
(a) Liver
(b) Ovary
(c) Testosterone
(d) None of these

Answer

Answer: (b) Ovary


Question 18.
Hormone secreted by thyroid gland
(a) Thyroxin
(b) Tryoxin
(c) Insulin
(d) None of these

Answer

Answer: (a) Thyroxin


Question 19.
Hormones are carried around in the body by
(a) blood
(b) nerves
(c) Lymph
(d) both blood and lymph

Answer

Answer: (d) Both blood and lymph


Question 20.
Pituitary gland is found:
(a) in the neck
(b) at the base of the brain
(c) beneath the stomach
(d) near the kidneys

Answer

Answer: (b) At the base of the brain


II. Fill in the blanks:

Question 1.
Endocrine glands lack ducts and are hence, called ………….

Answer

Answer: ductless glands


Question 2.
The endocrine glands and hormone producing diffuse ………… located in different parts of our body constitute the …………

Answer

Answer: tissues/cells, endocrine system


Question 3.
Hypothalamus is the basal part of ……….., ………….. and it regulates a wide spectrum of body functions.

Answer

Answer: diencephalon, forebrain


Question 4.
The …………… is under the direct neural regulation of the hypothalamus.

Answer

Answer: posterior pituitary


Question 5.
Pituitary gland is divided into ………… and …………

Answer

Answer: adenohypophysis, a neurohypophysis


Question 6.
…………. stimulates synthesis and secretion of thyroid hormones from the thyroid gland.

Answer

Answer: TSH


Question 7.
ACTH stimulates the synthesis and secretion of steroid hormones called ………….. from the adrenal cortex.

Answer

Answer: glucocorticoids


Question 8.
………….. stimulate gonadal activity and hence are called gonadotrophins.

Answer

Answer: FSH


Question 9.
The …………. is located on the dorsal side of forebrain.

Answer

Answer: pineal gland


Question 10.
Pineal secretes a hormone called …………..

Answer

Answer: melatonin


Question 11.
Thyroid hormones control the metabolism of …………, …………. and ………….

Answer

Answer: carbohydrates, proteins, fats


Question 12.
The parathyroid glands secrete a peptide hormone called ………….

Answer

Answer: parathyroid hormone (PTH).


Question 13.
Thymosins play a major role in the differentiation of Tlymphocytes, which provide …………..

Answer

Answer: cell-mediated immunity.


Question 14.
The centrally located tissue is called the …………, and outside this lies the ……………

Answer

Answer: adrenal medulla, adrenal cortex


Question 15.
The two main types of cell in the Islet of langerhans are called ………… and ………..

Answer

Answer: α-cell, ß-cells.


III. Mark the statement True (T) or False (F):

Question 1.
Glucagon is a hyperglycemic hormone.

Answer

Answer: True


Question 2.
Pupilary dilation, piloerection, sweating the hormones increase the heart beat, the strength of heart contraction and the rate of respiration.

Answer

Answer: True


Question 3.
Ovary is composed of ovarian follicles and stromal tissues.

Answer

Answer: True


Question 4.
The atrial wall of our heart secretes a very important peptide hormone called atrial natriuretic factor

Answer

Answer: True


Question 5.
Secretion acts on the exocrine pancreas and stimulates secretion of water and bicarbonate ions.

Answer

Answer: True


Question 6.
CCK inhibits gastric secretion and motility

Answer

Answer: False


Question 7.
On the basis of their chemical nature, hormones can be divided into groups, (i) Peptide, polypeptide, protein hormones.

Answer

Answer: True


Question 8.
Kidney produces erythropoietin which stimulates erythropoiesis.

Answer

Answer: True


Question 9.
Adenohypophysis consist of two portions, pars distalis and pars inter media.

Answer

Answer: True


Question 10.
In males, FSH and androgens regulate the corpus Iuteum

Answer

Answer: False


Question 11.
Parathyroid hormone (PTH) increases Ca2+ levels in the blood.

Answer

Answer: True


Question 12.
The thymus gland is a lobular structure located on the dorsal side of the heart and the aorta.

Answer

Answer: True


Question 13.
In our body, cortisol is the main glucocorticoid.

Answer

Answer: True


Question 14.
Heart patients are successfully treated with insulin therapy.

Answer

Answer: False


Question 15.
Due to the action of GIP, the blood vessels are dilated and consequently the blood pressure declines.

Answer

Answer: False


IV. Match the items of the column I with appropriate items of Column II.

Column I Column II
(a) Pineal gland 1. Lower blood glucose levels
(b) Insulin 2. Secreted by the adrenal medulla
(c) Hormone 3. steroid
(d) Adrenaline 4. Product of an endocrine gland
(e) Lipid-soluble hormones 5. Source of melationin
(f) Parathyroid hormone 6. ß-cells
(g) Adrenal cortex 7. α-cells
(h) Insulin 8. Stimulates secretion of milk
(i) Glucagon 9. androgens, testosterone
(j) Insulin therapy 10. GIP
(k) Ovary 11. Zona reticularis, zona fasciculata
(l) Testis 12. Estrogen and progesterone
(m) Gastric inhibitory peptide 13. Diabetes mellitus
(n) When blood pressure is increased 14. anti-diurectic hormone
(o) ADH 15. special cells secrete ANF
Answer

Answer:

Column I Column II
(a) Pineal gland 5. Source of melationin
(b) Insulin 1. Lower blood glucose levels
(c) Hormone 4. Product of an endocrine gland
(d) Adrenaline 2. Secreted by the adrenal medulla
(e) Lipid-soluble hormones 3. steroid
(f) Parathyroid hormone 8. Stimulates secretion of milk
(g) Adrenal cortex 11. Zona reticularis, zona fasciculata
(h) Insulin 6. ß-cells
(i) Glucagon 7. α-cells
(j) Insulin therapy 13. Diabetes mellitus
(k) Ovary 12. Estrogen and progesterone
(l) Testis 9. androgens, testosterone
(m) Gastric inhibitory peptide 10. GIP
(n) When blood pressure is increased 15. special cells secrete ANF
(o) ADH 14. anti-diurectic hormone

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