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

Check the below NCERT MCQ Questions for Class 11 Biology Chapter 22 Chemical Coordination and Integration with Answers Pdf free download. MCQ Questions for Class 11 Biology with Answers were prepared based on the latest exam pattern. We have provided Chemical Coordination and Integration Class 11 Biology MCQs Questions with Answers to help students understand the concept very well.

Q1. In the mechanism of action of a protein hormone, one of the second messengers is

(a) Gastrin
(b) Cyclic AMP
(c) T3
(d) Insulin

(b) Cyclic AMP

Q2. Myopia is a defect in human eyes in which the image is formed:

(a) Behind retina and can be corrected by using convex lens
(b) Behind retina and can be corrected by using concave lens
(c) Infront of retina and can be corrected by using concave lens
(d) Infront of retina and can be corrected by using convex lens

Q3. BMR is increased due to:

(a) Sympathetic nervous system
(b) Adrenaline
(c) Parasympathetic nervous system
(d) Thyroxine

(d) Thyroxine

Q4. Transmission of light into nerve impulse is a:

(a) Mechanical process
(b) Physical process
(c) Chemical process
(d) Biochemical process

(b) Physical process

Q5. Steroid hormones easily pass through the plasma membrane by simple diffusion because they

(a) Are water-soluble
(b) Are lipid-soluble
(c) Enter through pores
(d) Contain carbon and hydrogen

(b) Are lipid-soluble

Q6. The vitamin which works along with para thyroid hormone is:

(a) Vitamin C
(b) Calciferol
(c) Tocopherol
(d) Vitamin – B12

(b) Calciferol

Q7. Parathormone regulates:

(a) Blood calcium level
(b) Calcium phosphate level
(c) Body temperature
(d) None of the above

(a) Blood calcium level

Q8. In Hashimoto’s disease symptoms develop like :-

(a) Hyposecretion of thyroxine
(b) Hyper secretion of thyroxine
(c) Hyposecreation of adrenaline
(d) None of the above

(a) Hyposecretion of thyroxine

Q9. Injection of which of the following increases metabolic rate :-

(a) STH
(b) Insulin
(c) Thyroxine
(d) Testosterone

Q11. Meibomian gland are associated with:

(a) Eyes
(b) Ears
(c) Reproductive organ
(d) Skin

(a) Eyes

Q12. The thyroid gland is homologous to which part of lower chordates :-

(a) Neural gland
(b) Pharyngeal gill pouch
(c) Nerve cord
(d) Endostyle

(d) Endostyle

Q13. The ‘islets of Langerhans’ are found in

(a) Alimentary canal
(b) Stomach
(c) Liver
(d) Pancreas

(d) Pancreas

Q14. If thyroid is removed from tadpole of frog, it will:

(a) Die soon
(b) Remains tadpole throughout life
(c) Grows in to giant frog
(d) Grows into dwarf frog

(b) Remains tadpole throughout life

Q15. Cochlea of mammalian ear is concerned with:

(a) Balancing of body
(b) Hearing
(c) Pereception of atmospheric pressure
(d) Both (a) and (b)

(b) Hearing

Q16. Which of the following is anvil shaped ear ossicle:

(a) Incus
(b) Malleus
(c) Stapes
(d) Humerus

(a) Incus

Q17. In children, hypothyroidism (underactive thyroid gland) can lead to __

(a) Goiter
(b) Acromegaly
(c) Cretinism
(d) Myxedema

Q18. Diurnal rhythm of the body is maintained by

(a) melatonin
(b) isthmus
(c) PTH
(d) norepinephrine

(a) melatonin

Q19. Which hormone inhibits the release of growth hormone?

(a) Insulin
(b) Gonadotrophin
(c) Somatostatin
(d) Thymosin

Q20. Which of the following is essential for thyroid gland?

(a) NaCl
(b) I3
(c) CaCO2
(d) H2CO3

(b) I3

Q21. By the stimulation of which structure of human ear, the sound waves are perceived by brain :-

(a) Basilar membrane
(b) Tectorial membrane
(c) Meissner’s membrane
(d) Sensory hair cells of organ of corti

(d) Sensory hair cells of organ of corti

Q22. Which one of the following is not a second messenger in hormone action?

(a) Calcium
(b) cAMP
(c) cGMP
(d) Sodium

(d) Sodium

MCQ Questions for Class 11 Biology with Answers Chapter Wise

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