1. In which among the following organ, “Bowman’s Capsule” is found?
[A] Liver
[B] Kidney
[C] Heart
[D] Small intestine
Show Answer
Correct Answer: B [Kidney]
Notes:
Each kidney is made of tube like structures called nephrons (renal tubules). A nephron is the structural and functional unit of the kidney. The cup-shaped upper end called Bowman’s capsule, has a network of capillaries within it called glomerulus. Glomerulus is a knot of capillaries formed from the artery which brings blood containing wastes and excess of water to the kidney. Bowman’s capsule leads into a tubular structure.
2. Which among the following is the correct location of Adrenal Glands in Human Body?
[A] Above kidneys
[B] Below kidneys
[C] Above Medulla Oblongata
[D] Near Pancreases
Show Answer
Correct Answer: A [Above kidneys]
Notes:
Each adrenal gland is located on the top of each kidney (forming a hat-like structure on the top of the kidneys). Each adrenal gland has two parts viz. outer cortical portion and inner adrenal cortex. Further, there is a central part called adrenal medulla.
3. The elements which are found in Haemoglobin, Chlorophyll, Chalcopyrite & Vitamin B12 are respectively as follows__________?
[A] Iron, Copper, Magnesium, Cobalt
[B] Iron, Magnesium, Copper, Cobalt
[C] Iron, Cobalt, Copper, Magnesium
[D] Magnesium, Iron, Cobalt, Copper
Show Answer
Correct Answer: B [Iron, Magnesium, Copper, Cobalt]
Notes:
The elements which are found in Haemoglobin, Chlorophyll, Chalcopyrite & Vitamin B12 are respectively as follows: Iron, Magnesium, Copper, Cobalt.
4. Which among the following has a fibrous root?
[A] Grass
[B] Mize
[C] Carrot
[D] Rice
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Correct Answer: A [Grass]
Notes:
A fibrous root system is universal in monocotyledonous plants and ferns. It is the opposite of a taproot system and usually formed by thin, moderately branching roots growing from the stem. Fibrous root system is present in grass.
5. During the process of Osmosis, the solvent travels from _______ ?
[A] Concentrated solution to dilute solution
[B] Dilute solution to the concentrated solution
[C] Solvent does not travel in osmosis
[D] None of the above
Show Answer
Correct Answer: B [Dilute solution to the concentrated solution]
Notes:
Osmosis is a process by which molecules of a solvent tend to pass through a semipermeable membrane from a dilite solution into concentrated one making both the sides equal.
6. In which of the following conditions a person is born with both ovarian and testicular tissues i.e. both female & male organs?
[A] Swyer syndrome
[B] Penile agenesis
[C] Polyorchidism
[D] Hermaphroditism
Show Answer
Correct Answer: D [Hermaphroditism]
Notes:
A hermaphrodite is an organism that has complete or partial reproductive organs and produces gametes normally associated with both male and female sexes. It has both ovarian and testicular tissues.
7. Which part of the plant Raphanus sativus is edible?
[A] Fruit
[B] Leaves
[C] Roots
[D] All the above
Show Answer
Correct Answer: D [All the above]
Notes:
Raphanus sativus is Radish. The Edible parts are roots, but Radish leaves and seedpods which are fruits are also edible.
8. Dehydration in human body is caused due to the deficiency of which of the following?
[A] Water
[B] Hormones
[C] Vitamin
[D] Salt
Show Answer
Correct Answer: A [Water]
Notes:
Dehydration is a deficiency of water in thebody. Vomiting, diarrhea, excessive sweating, burns, kidney failure, and use of diuretics maycause dehydration. People feel thirsty, and asdehydration worsens, they may sweat less and excrete less urine.
9. Who among the following proposed the adage “Survival of the fittest”?
[A] Darwin
[B] Lamarck
[C] William
[D] Huxley
Show Answer
Correct Answer: A [Darwin]
Notes:
“Survival of the fittest” is a phrase that originated from Darwinian evolutionary theory as a way of describing the mechanism of natural selection. The biological concept of fitness is defined as reproductive success.
10. Where does pearls are formed? (UPSC Prelims 1982)
[A] Inside squids
[B] Inside snails
[C] Inside oysters
[D] Inside mollusks
Show Answer
Correct Answer: C [Inside oysters]
Notes:
Natural Pearls are formed when an irritant usually a parasite works its way into an oyster, mussel, or clam. As a defense mechanism, a fluid is used to coat the irritant. Layer upon layer of this coating, called nacre, is deposited until a lustrous pearl is formed.
