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Chemical Coordination and Integration Class 11 MCQs Questions with Answers
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
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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