1. When the lens of the eye becomes opaque it is called:
(a) Cataract✅
(b) Glaucoma
(c) Squint
(d) Long sightedness
2. Testosterone is the hormone secreted by:
(a) Ovary
(b) Testis✅
(c) Pancreas
(d) Adrenal gland
3. Auxin is produced in:
(a) Leaf
(b) Root
(c) Stem tip✅
(d) Flowers
4. Goitre is due to the deficiency of iodine due to enlargement of:
(a) Thyroid gland✅
(b) Parathyroid gland
(c) Pituitary gland
(d) Pancreas
5. The number of pair of nerves arising from the brain are:
(a) 32 pairs
(b) 21 pairs
(c) 12 pairs✅
(d) 10 pairs
6. The neurons which carry messages from the receptor to the central nervous system are called:
(a) Sensory neurons✅
(b) motor
(c) Involuntary action
(d) None
7. Riding and singing are:
(a) Reflex action
(b) Voluntary actions✅
(c) Involuntary actions
(d) None of these
8. Auxin, Cytokinins and Gibberellins are:
(a) Plant hormones✅
(b) Animal hormones
(c) Pituitary hormones
(d) Drugs
9. Adrenaline hormones secreted by adrenal gland and prepares the body for:
(a) Fight
(b) Flight
(c) Emergencies✅
(d) None
10. The hormones which are related with development of secondary sex-characters are:
(a) Testosterone
(b) Oestrogen
(c) a and b✅
(d) none of these
11. The example of most addictive drug, affecting CNS is:
(a) Morphine
(b) Cocaine
(c) Heroin✅
(d) Aspirin
12. Marijuana (Charas) produces:
(a) Toxicity
(b) Infertility
(c) Lightened sensation and hallucination✅
(d) None of these
13. Paralysis is characterized by:
(a) loss of power or motion
(b) loss of sensation
(c) both a and b✅
(d) convulsion and coma
14. Gibberellin causes:
(a) Rapid elongation of stem
(b) Breaking seed dormancy
(c) Flowering and early fruiting
(d) All of them✅
15. Nicotine present in cigarette is:
(a) Carcinogenic
(b) Damage to foetus
(c) Cause of pre-mature birth
(d) All✅
16. Aspirin has the following useful effects:
(a) Analgesic
(b) Antipyretic
(c) Anti-inflammatory
(d) Anti thrombotic
(e) All✅
17. Abscisic acid is a:
(a) Plant hormone
(b) Animal hormone
(c) drug
(d) Toxin✅
18. The neurons in central nervous system are:
(a) Sensory
(b) Associative✅
(c) Motor
(d) All above
19. The sensitive layer of the eye is:
(a) Choroid
(b) Sclerotic
(c) Retina✅
(d) Cornea
20. The main part of ear concerned with hearing is:
(a) Ear drum
(b) Membranous labyrinth✅
(c) Pinna
(d) Semi circular canal
21. The work of organs and systems of body in harmonized manner is called:
(a) Performance
(b) Co-ordination✅
(c) Regulation
(d) Organization
22. Following system brings about coordination in animals:
(a) Endocrine system
(b) Exocrine system
(c) C.N.S.
(d) a and c✅
23. Sensory organs which can receive a stimulus are called:
(a) Effectors
(b) Receptors✅
(c) Detectors
(d) All
24. The nervous pathway which carry the impulses causing a reflex action is called:
(a) Reflex point
(b) Reflex arc✅
(c) Reflex rail
(d) Reflex way
25. Hypothalamus controls:
(a) Heart rate and B.P.
(b) Body temperature✅
(c) Hunger and thirst
(d) Sex and anger
(e) All above
26. Mood and feelings are controlled by:
(a) Hypothalamus
(b) Cerebellum
(c) Pons
(d) Thalamus✅
27. Balancing and muscle co-ordination is controlled by:
(a) Cerebrum
(b) Cerebellum✅
(c) Medulla oblongata
(d) Pons
28. The autonomic nervous system consists of:
(a) Peripheral nervous system
(b) Sympathetic nervous system
(c) Parasympathetic nervous system
(d) b and c✅
29. An action which takes place willingly under the direction from brain is called:
(a) Involuntary action
(b) Voluntary action✅
(c) Reflex action
(d) Unconscious
30. Thyroid gland produces:
(a) Thyroxin✅
(b) Calcitonin
(c) Glucocorticoid
(d) Mineralocorticoid
31. Parathyroid gland control blood level of:
(a) Glucose
(b) Sodium
(c) Ca++ and phosphate✅
(d) All above
32. Growth hormone of pituitary gland is also called:
(a) Somatotropic✅
(b) Antidiuretic
(c) Diabetic
(d) All above
33. Endocrine portion of pancreas is called:
(a) Islets of Langerhans✅
(b) Endocrine pancreas
(c) Anterior pancreas
(d) All above
34. Diabetes mellitus arise from insufficiency of:
(a) Insulin✅
(b) Glucagon
(c) Cortisol
(d) All above
35. Example of effector is:
(a) Muscle
(b) Bone
(c) Gland
(d) a and c✅
36. Cytokinin causes:
(a) Cell division
(b) Germination of seed
(c) Fruit development
(d) All above✅
