General Science Jkssb Biology Set 1 Mcqs (605 MCQs) | JKSSB & SSC Quiz

General Science

jkssb biology set 1 mcqs

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Practice Questions

605 Total
Question 471 Discuss
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The 'Basal Metabolic Rate' (BMR) is primarily controlled by which hormone

A
Insulin
B
Thyroxine
C
Glucagon
D
Cortisol

Answer & Explanation

Correct Option: B

Thyroid hormones regulate the rate at which the body uses oxygen and energy at rest.
Question 472 Discuss
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In the human eye 'Cataract' is the condition where

A
The retina is damaged by high pressure
B
The lens becomes opaque
C
The cornea becomes cone-shaped
D
The optic nerve is severed

Answer & Explanation

Correct Option: B

Clouding of the lens prevents light from focusing on the retina, causing blurred vision.
Question 473 Discuss
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Which 'Phytohormone' is used to speed up the malting process in the brewing industry

A
Auxin
B
Gibberellin
C
Ethylene
D
Abscisic Acid

Answer & Explanation

Correct Option: B

Gibberellins stimulate the production of hydrolytic enzymes like alpha-amylase in germinating seeds.
Question 474 Discuss
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Identify the 'Non-Endocrine' function of the Pancreas

A
Secreting Insulin
B
Secreting Glucagon
C
Secreting Pancreatic Juice containing enzymes
D
Secreting Somatostatin

Answer & Explanation

Correct Option: C

The exocrine part of the pancreas secretes digestive enzymes into the duodenum.
Question 475 Discuss
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The 'Ozone Hole' is most prominent over which region

A
Equator
B
Antarctica
C
Sahara Desert
D
Himalayas

Answer & Explanation

Correct Option: B

Low stratospheric temperatures and polar clouds over Antarctica facilitate ozone destruction by CFCs.
Question 476 Discuss
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Which of the following is an 'Autoimmune' disease

A
Tuberculosis
B
Rheumatoid Arthritis
C
Malaria
D
Scurvy

Answer & Explanation

Correct Option: B

In autoimmune diseases, the immune system mistakenly attacks the body's own healthy tissues.
Question 477 Discuss
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The 'Bilateral' symmetry and 'Triploblastic' nature are features of which phylum

A
Cnidaria
B
Porifera
C
Platyhelminthes
D
Ctenophora

Answer & Explanation

Correct Option: C

Flatworms are the first animals to exhibit bilateral symmetry and three germ layers.
Question 478 Discuss
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Identify the 'Storage' form of carbohydrates in Plants

A
Glycogen
B
Starch
C
Cellulose
D
Glucose

Answer & Explanation

Correct Option: B

Plants convert excess glucose into starch grains for long-term energy storage.
Question 479 Discuss
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The 'Endoplasmic Reticulum' is called 'Rough' when it has which of the following attached to its surface

A
Lysosomes
B
Ribosomes
C
Mitochondria
D
Golgi bodies

Answer & Explanation

Correct Option: B

Rough ER is involved in protein synthesis and transport due to the presence of ribosomes.
Question 480 Discuss
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Identify the hormone responsible for the 'Female' secondary sexual characteristics

A
Testosterone
B
Estrogen
C
Progesterone
D
Prolactin

Answer & Explanation

Correct Option: B

Estrogen regulates the development of female reproductive tissues and secondary traits like breast development.
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