Which of the following is an amino acid derived hormone?
a.
Epinephrine
Correct Answer
b.
Ecdysone
c.
Estradiol
d.
Estriol
Step-by-Step AI Explanation
Verified Method
Epinephrine is a catecholamine derived from the amino acid tyrosine. Ecdysone and the estrogens are steroid hormones.
Q47mcq
Which of the following structures or regions is incorrectly paired with its function?
a.
Medulla oblongata: controls respiration and cardiovascular reflexes.
b.
Limbic system: consists of fibre tracts that interconnect different regions of brain; controls movement.
Correct Answer
c.
Hypothalamus: production of releasing hormones and regulation of temperature, hunger and thirst.
d.
Corpus callosum: band of fibers connecting left and right cerebral hemispheres.
Step-by-Step AI Explanation
Verified Method
The limbic system is mainly involved in emotional behaviour, motivation and memory. The description given corresponds more to association fibre tracts/white matter, not the limbic system.
Q48mcq
The transparent lens in the human eye is held in its place by
a.
ligaments attached to the ciliary body
Correct Answer
b.
ligaments attached to the iris
c.
smooth muscles attached to the iris
d.
smooth muscles attached to the ciliary body
Step-by-Step AI Explanation
Verified Method
The lens is suspended by suspensory ligaments (zonular fibres) attached to the ciliary body.
Q49mcq
Which of the following hormones can play a significant role in osteoporosis?
a.
Aldosterone and Prolactin
b.
Progesterone and Aldosterone
c.
Estrogen and Parathyroid hormone
Correct Answer
d.
Parathyroid hormone and Prolactin
Step-by-Step AI Explanation
Verified Method
Osteoporosis is associated with loss of bone mass, especially after menopause due to reduced estrogen. Excess parathyroid hormone also promotes bone resorption.
Q50mcq
Ciliates differ from all other protozoans in
a.
using flagella for locomotion
b.
having a contractile vacuole for removing excess water
c.
using pseudopodia for capturing prey
d.
having two types of nuclei
Correct Answer
Step-by-Step AI Explanation
Verified Method
Ciliates characteristically possess two nuclei: a macronucleus and a micronucleus.
Q51mcq
Identify the vertebrate group of animals characterized by crop and gizzard in its digestive system.
a.
Amphibia
b.
Reptilia
c.
Aves
Correct Answer
d.
Osteichthyes
Step-by-Step AI Explanation
Verified Method
Crop and gizzard are characteristic of birds (Aves), where the crop stores food and the gizzard grinds it.
Q52mcq
Which of the following organisms are known as chief producers in the oceans?
a.
Dinoflagellates
b.
Diatoms
Correct Answer
c.
Cyanobacteria
d.
Euglenoids
Step-by-Step AI Explanation
Verified Method
Diatoms are the major phytoplankton and chief primary producers in oceans.
Q53mcq
Which one of these animals is not a homeotherm?
a.
Macropus
b.
Chelone
Correct Answer
c.
Camelus
d.
Psittacula
Step-by-Step AI Explanation
Verified Method
Chelone is a reptile (turtle), which is poikilothermic, not homeothermic.
Q54mcq
Which of the following animals does not undergo metamorphosis?
a.
Earthworm
Correct Answer
b.
Tunicate
c.
Moth
d.
Starfish
Step-by-Step AI Explanation
Verified Method
Earthworm develops directly without metamorphosis. Tunicate, moth and starfish undergo metamorphic changes.
Q55mcq
Which of the following features is used to identify a male cockroach from a female cockroach?
a.
Presence of a boat shaped sternum on the 9th abdominal segment
b.
Presence of caudal styles
Correct Answer
c.
Forewings with darker tegmina
d.
Presence of anal cerci
Step-by-Step AI Explanation
Verified Method
Male cockroach has a pair of caudal styles on the 9th sternum, which females lack.
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Match the items given in Column I with those in Column II and select the correct option given below:
Column I: a. Eutrophication, b. Sanitary landfill, c. Snow blindness, d. Jhum cultivation
Column II: i. UV-B radiation, ii. Deforestation, iii. Nutrient enrichment, iv. Waste disposal
a.
a-ii, b-i, c-iii, d-iv
b.
a-i, b-iii, c-iv, d-ii
c.
a-iii, b-iv, c-i, d-ii
d.
a-i, b-ii, c-iv, d-iii
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Match the items given in Column I with those in Column II and select the correct option given below:
Column I
a. Eutrophication
b. Sanitary landfill
c. Snow blindness
d. Jhum cultivation
Column II
i. UV-B radiation
ii. Deforestation
iii. Nutrient enrichment
iv. Waste disposal
a.
a-ii, b-i, c-iii, d-iv
b.
a-i, b-iii, c-iv, d-ii
c.
a-iii, b-iv, c-i, d-ii
d.
a-i, b-ii, c-iv, d-iii
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Match the items given in Column I with those in Column II and select the correct option given below:
Column I
a. Tricuspid valve
b. Bicuspid valve
c. Semilunar valve
Column II
i. Between left atrium and left ventricle
ii. Between right ventricle and pulmonary artery
iii. Between right atrium and right ventricle
a.
a-iii, b-i, c-ii
b.
a-i, b-iii, c-ii
c.
a-i, b-ii, c-iii
d.
a-ii, b-i, c-iii
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Match the items given in Column I with those in Column II and select the correct option given below:
Column I
a. Tidal volume
b. Inspiratory reserve volume
c. Expiratory reserve volume
d. Residual volume
Column II
i. 2500–3000 mL
ii. 1100–1200 mL
iii. 500–550 mL
iv. 1000–1100 mL
a.
a-iii, b-ii, c-i, d-iv
b.
a-iii, b-i, c-iv, d-ii
c.
a-i, b-iv, c-ii, d-iii
d.
a-iv, b-iii, c-ii, d-i
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Match the items given in Column I with those in Column II and select the correct option given below:
Column I
a. Glycosuria
b. Gout
c. Renal calculi
d. Glomerular nephritis
Column II
i. Accumulation of uric acid in joints
ii. Mass of crystallised salts within the kidney
iii. Inflammation in glomeruli
iv. Presence of glucose in urine
a.
a-iv, b-i, c-ii, d-iii
b.
a-i, b-ii, c-iii, d-iv
c.
a-ii, b-iii, c-i, d-iv
d.
a-iii, b-iv, c-ii, d-i
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Match the items given in Column I with those in Column II and select the correct option given below:
Column I
a. Glycosuria
b. Gout
c. Renal calculi
d. Glomerular nephritis
Column II
i. Accumulation of uric acid in joints
ii. Mass of crystallised salts within the kidney
iii. Inflammation in glomeruli
iv. Presence of glucose in urine
a.
a b c d = iii ii iv i
b.
a b c d = i ii iii iv
c.
a b c d = ii iii i iv
d.
a b c d = iv i ii iii
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Match the items given in Column I with those in Column II and select the correct option given below:
Column I (Function)
a. Ultrafiltration
b. Concentration of urine
c. Transport of urine
d. Storage of urine
Column II (Part of Excretory System)
i. Henle’s loop
ii. Ureter
iii. Urinary bladder
iv. Malpighian corpuscle
v. Proximal convoluted tubule
a.
a-iv, b-i, c-ii, d-iii
b.
a-iv, b-v, c-ii, d-iii
c.
a-v, b-iv, c-i, d-ii
d.
a-v, b-iv, c-i, d-iii
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Match the items given in Column I with those in Column II and select the correct option given below:
Column I (Function)
a. Ultrafiltration
b. Concentration of urine
c. Transport of urine
d. Storage of urine
Column II (Part of Excretory System)
i. Henle’s loop
ii. Ureter
iii. Urinary bladder
iv. Malpighian corpuscle
v. Proximal convoluted tubule
a.
a b c d = iv v ii iii
b.
a b c d = iv i ii iii
c.
a b c d = v iv i ii
d.
a b c d = v iv i iii
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Match the items given in Column I with those in Column II and select the correct option given below:
Column I
a. Proliferative Phase
b. Secretory Phase
c. Menstruation
Column II
i. Breakdown of endometrial lining
ii. Follicular Phase
iii. Luteal Phase
a.
a b c = iii ii i
b.
a b c = i iii ii
c.
a b c = ii iii i
d.
a b c = iii i ii
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Match the items given in Column I with those in Column II and select the correct option given below:
Column I
a. Fibrinogen
b. Globulin
c. Albumin
Column II
i. Osmotic balance
ii. Blood clotting
iii. Defence mechanism
a.
a b c = iii ii i
b.
a b c = i ii iii
c.
a b c = i iii ii
d.
a b c = ii iii i
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Match the items given in Column I with those in Column II and select the correct option given below:
Column I
a. Herbarium
b. Key
c. Museum
d. Catalogue
Column II
i. It is a place having a collection of preserved plants and animals.
ii. A list that enumerates methodically all the species found in an area with brief description aiding identification.
iii. Is a place where dried and pressed plant specimens mounted on sheets are kept.
iv. A booklet containing a list of characters and their alternates which are helpful in identification of various taxa.
a.
i iv iii ii
b.
iii ii i iv
c.
ii iv iii i
d.
iii iv i ii
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Match the items given in Column I with those in Column II and select the correct option given below:
Column I
(a) Herbarium
(b) Key
(c) Museum
(d) Catalogue
Column II
(i) It is a place having a collection of preserved plants and animals.
(ii) A list that enumerates methodically all the species found in an area with brief description aiding identification.
(iii) Is a place where dried and pressed plant specimens mounted on sheets are kept.
(iv) A booklet containing a list of characters and their alternates which are helpful in identification of various taxa.
a.
i iv iii ii
b.
iii ii i iv
c.
ii iv iii i
d.
iii iv i ii
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Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?
a.
Hydrilla
b.
Yucca
c.
Banana
d.
Viola
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Magnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of (X) is 1s2 2s2 2p3, the simplest formula for this compound is
a.
Mg2X3
b.
MgX2
c.
Mg2X
d.
Mg3X2
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