In This Post we are providing Chapter-22 Chemical Coordination and Integration NCERT MCQ for Class 11 Biology which will be beneficial for students. These solutions are updated according to 2021-22 syllabus. These MCQS can be really helpful in the preparation of Board exams and will provide you with a brief knowledge of the chapter.
NCERT MCQ ON CHEMICAL COORDINATION AND INTEGRATION
Question 1.
Philips collip discovered which of the following hormones:
(a) Parathyroid hormone
(b) Thyroxine
(c) A.D.H.
(d) Oxytocin
Answer: (a) Parathyroid hormone
Question 2.
Goiter is a pathological condition associated with:
(a) Glucagon
(b) Thyroxine
(c) Progesterone
(d) Testosterone
Answer: (b) Thyroxine
Question 3.
The other name of internal ear is:
(a) Utriculus
(b) Membranous labyrinth
(c) Saccules
(d) Ductus endolymphatic
Answer: (b) Membranous labyrinth
Question 4.
Who is known as the ‘father of endocrinology’?
(a) Thomas Addison
(b) Pasteur
(c) R. H. Whittaker
(d) Einthoven
Answer: (a) Thomas Addison
Question 5.
Which of the following is stirrup shaped ear ossicle
(a) Incus
(b) Stapes
(c) Malleus
(d) Humerus
Answer: (b) Stapes
Question 6.
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 cortex
Answer: (d) Sensory hair cells of organ of cortex
Question 7.
Rabbit has:
(a) Monocular vision
(b) Binocular vision
(c) Conjunctiva
(d) Cornea
Answer: (a) Monocular vision
Question 8.
Chemically, hormones are
(a) Proteins, steroids and biogenic amines
(b) Steroids only
(c) Biogenic amines only
(d) Proteins only
Answer: (a) Proteins, steroids and biogenic amines
Question 9.
Cochlea of mammalian ear is concerned with:
(a) Balancing of body
(b) Hearing
(c) Perception of atmospheric pressure
(d) Both (a) and (b)
Answer: (b) Hearing
Question 10.
The ‘islets of Langerhans’ are found in
(a) Alimentary canal
(b) Stomach
(c) Liver
(d) Pancreas
Answer: (d) Pancreas
Question 11.
Meibomian gland are associated with:
(a) Eyes
(b) Ears
(c) Reproductive organ
(d) Skin
Answer: (a) Eyes
Question 12.
Injection of which of the following increases metabolic rate :-
(a) STH
(b) Insulin
(c) Thyroxine
(d) Testosterone
Answer: (c) Thyroxine
Question 13.
Parathormone regulates:
(a) Blood calcium level
(b) Calcium phosphate level
(c) Body temperature
(d) None of the above
Answer: (a) Blood calcium level
Question 14.
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
Answer: (b) Are lipid-soluble
Question 15.
BMR is increased due to:
(a) Sympathetic nervous system
(b) Adrenaline
(c) Parasympathetic nervous system
(d) Thyroxine
Answer: (d) Thyroxine
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