HSA Mixed Practice Test #376

Question 1

rRNA:‌​‍

Accepted Answer

Ribosomes — Ribosomal RNA structural component.‌​‍

Answer

Messenger

Answer

None

Answer

Transfer

Question 2

Chilika Lake is in:‌​‍

Accepted Answer

Odisha — Chilika Lake (Odisha) is the largest brackish water lagoon in India.‌​‍

Answer

Kerala

Answer

Tamil Nadu

Answer

Andhra Pradesh

Question 3

The flat valleys between the Lesser Himalayas and Shiwaliks are called:‌​‍

Accepted Answer

Duns — Duns (e.g., Dehradun, Kotli Dun) are longitudinal valleys between the Shiwaliks and Lesser Himalayas.‌​‍

Answer

Margs

Answer

Khadars

Answer

Bugyals

Question 4

Kalidasa, the great Sanskrit poet, was in the court of:‌​‍

Accepted Answer

Chandragupta II — Kalidasa was one of the Navratnas (Nine Gems) in the court of Chandragupta II (Vikramaditya). ‌​‍His works include Abhijnanashakuntalam and Meghadutam.

Answer

Samudragupta

Answer

Kumaragupta I

Answer

Ashoka

Question 5

The presence of a primary amine group (-NH2) in a drug molecule is often a site for which type of metabolic reaction in the body?

Accepted Answer

D. N-acetylation — Primary amine groups are common substrates for N-acetylation, a Phase II metabolic reaction. In this process, an acetyl group from acetyl-CoA is transferred to the nitrogen atom of the amine, forming an amide. This reaction is important for the metabolism of many drugs like isoniazid and sulfonamides. Other reactions typically act on different functional groups.

Answer

A. Glucuronidation

Answer

B. Reduction

Answer

C. Hydrolysis

Question 6

The person who is said to be the 'Iron man' of India is:‌​‍

Accepted Answer

Sardar Vallabhbhai Patel — Sardar Patel earned the title for unifying princely states.‌​‍

Answer

Jawaharlal Nehru

Answer

K. Kelappan

Answer

Bhagat Singh

Question 7

Manmohan Singh PM period:

Accepted Answer

2004-14 — 2004-2014 (two terms).

Answer

2014-19

Answer

1991-96

Answer

1996-04

Question 8

A 15-year-old student is discussing complex social issues like climate change or global poverty with depth and proposing multi-faceted solutions. This ability to think abstractly, consider multiple perspectives, and engage in hypothetical-deductive reasoning is characteristic of which stage of cognitive development, according to Piaget?

Accepted Answer

D. Formal operational stage — The formal operational stage, typically beginning around age 11-12 and extending through adulthood, is characterized by the development of abstract thinking, hypothetical-deductive reasoning, and the ability to consider multiple possibilities and complex concepts. The other stages involve more concrete or egocentric thinking.

Answer

A. Sensorimotor stage

Answer

B. Preoperational stage

Answer

C. Concrete operational stage

Question 9

The enzyme present in saliva that digests starch is:‌​‍

Accepted Answer

Amylase — Amylase (also called Ptyalin) is present in saliva and begins the digestion of starch into sugars in the mouth.‌​‍

Answer

Pepsin

Answer

Trypsin

Answer

Lipase

Question 10

Latent heat of fusion of ice at 0°C is approximately:

Accepted Answer

80 cal/g (334 J/g) — Fusion: 80 cal/g. Vaporisation of water at 100°C: 540 cal/g (2260 J/g).

Answer

540 cal/g

Answer

100 cal/g

Answer

1 cal/g

HSA Mixed Practice Test #376