Solving the Chemical Coordination and Integration Multiple Choice Questions of Class 11 Biology Chapter 22 MCQ can be of extreme help as you will be aware of all the concepts. These MCQ Questions on Chemical Coordination and Integration Class 11 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Have a glance at the MCQ of Chapter 22 Biology Class 11 and cross-check your answers during preparation.

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

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

Answer

Answer: (a) Pituitary

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

Answer

Answer: (b) Thyroid

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

Answer

Answer: (c) Progesterone

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

Answer

Answer: (c) P-cells

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

Answer

Answer: (b) Chemical messenger

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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.

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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

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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

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

Answer

Answer: (b) Thyroid

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

Answer

Answer: (a) Adrenaline

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

Answer

Answer: (d) Insulin

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

Answer

Answer: (a) Adrenal medulla

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

Answer

Answer: (b) Medulla

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

Answer

Answer: (d) Sebaceous

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

Answer

Answer: (a) Acromegaly

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

Answer

Answer: (b) Ovary

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

Answer

Answer: (a) Thyroxin

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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

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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

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II. Fill in the blanks:

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

Answer

Answer: ductless glands

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

Answer

Answer: tissues/cells, endocrine system

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

Answer

Answer: diencephalon, forebrain

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

Answer

Answer: posterior pituitary

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

Answer

Answer: adenohypophysis, a neurohypophysis

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

Answer

Answer: TSH

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

Answer

Answer: glucocorticoids

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

Answer

Answer: FSH

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

Answer

Answer: pineal gland

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

Answer

Answer: melatonin

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

Answer

Answer: carbohydrates, proteins, fats

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

Answer

Answer: parathyroid hormone (PTH).

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

Answer

Answer: cell-mediated immunity.

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

Answer

Answer: adrenal medulla, adrenal cortex

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

Answer

Answer: α-cell, ß-cells.

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

Question 1.
Glucagon is a hyperglycemic hormone.

Answer

Answer: True

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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

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

Answer

Answer: True

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

Answer

Answer: True

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

Answer

Answer: True

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Question 6.
CCK inhibits gastric secretion and motility

Answer

Answer: False

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

Answer

Answer: True

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Question 8.
Kidney produces erythropoietin which stimulates erythropoiesis.

Answer

Answer: True

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

Answer

Answer: True

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

Answer

Answer: False

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

Answer

Answer: True

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

Answer

Answer: True

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

Answer

Answer: True

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

Answer

Answer: False

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

Answer

Answer: False

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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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