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 141 Discuss
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National Prophylaxis Program, which was launched in 1970 as an immediate remedial measure to address which of the following medical conditions / diseases caused by nutritional deficiencies?

A
Goitre
B
Hypercalcemia
C
Beriberi
D
Blindness

Answer & Explanation

Correct Option: D

The Indian National Prophylaxis Program against Nutritional Blindness was originally launched specifically to combat severe pediatric Vitamin A deficiency, which routinely leads directly to preventable childhood blindness.
Question 142 Discuss
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Which of the following is an example of anaerobic activity?

A
Jumping
B
Skipping
C
Walking
D
Swimming

Answer & Explanation

Correct Option: A

High-intensity, short-duration physical exercises like explosive jumping (plyometrics) rely primarily on immediate, stored energy sources inside the muscles rather than sustained oxygen delivery, scientifically making them intense anaerobic activities.
Question 143 Discuss
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Which of the following foods generally increase blood pressure?

A
Food high in protein
B
Food high in salt, sugar and saturated or trans fats
C
Food with low salt and low sugar
D
Food high in fibre

Answer & Explanation

Correct Option: B

Processed diets that are exceptionally high in dietary sodium force the human body to retain excess water, which directly inflates total blood volume and subsequently raises the arterial blood pressure against vessel walls.
Question 144 Discuss
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In which of the following is nicotine present in high quantity?

A
Tobacco
B
Tea
C
Butter milk
D
Lime soda

Answer & Explanation

Correct Option: A

Nicotine is a highly addictive, stimulant parasympathomimetic alkaloid compound that is naturally synthesized and highly concentrated primarily in the broad leaves of the agricultural tobacco plant.
Question 145 Discuss
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Which of the following is NOT included in the Indian Food Guide Pyramid for healthy eating?

A
Pulses and legumes
B
Alcoholic beverages
C
Milk, meat and products
D
Fats and sugar

Answer & Explanation

Correct Option: B

Alcoholic beverages are intentionally entirely excluded from modern national standard dietary pyramids because they predominantly provide 'empty' calories and lack any essential, functional nutritional value for the human body.
Question 146 Discuss
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Which protein is found in grains?

A
Gluten
B
Gum protein
C
Arginine
D
Delta protein

Answer & Explanation

Correct Option: A

Gluten is the dominant, highly complex structural protein matrix found predominantly in the endosperm of common cereal grains like wheat, barley, and rye, notably giving baking dough its unique elasticity.
Question 147 Discuss
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Identify the reason for formation of dental plaque.

A
When acids stick to the teeth
B
When bacteria acting on sugars produce acids
C
Masses of bacterial cells together with food particles stick to the teeth
D
Saliva sticks to the pulp

Answer & Explanation

Correct Option: C

Clinical dental plaque is a thick, sticky biological biofilm that progressively forms when naturally present oral bacterial cells physically combine with lingering microscopic food particles and adhere firmly to the enamel surface of the teeth.
Question 148 Discuss
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Which vitamin is involved in red blood cell formation, neurological function and DNA synthesis?

A
Vitamin B7
B
Vitamin K
C
Vitamin E
D
Vitamin B12

Answer & Explanation

Correct Option: D

Vitamin B12, chemically known as cobalamin, is an essential, highly complex water-soluble vitamin strictly required by the human body for the proper cellular maturation of red blood cells and maintaining healthy nerve myelination.
Question 149 Discuss
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What is the shape of the eyeball?

A
Oval
B
Spherical
C
Cylindrical
D
Circular

Answer & Explanation

Correct Option: B

The basic human eyeball is roughly, yet functionally, spherical in its three-dimensional shape, a geometric design which critically allows for uniform internal fluid pressure and optimal, low-friction rotation within the bony eye socket.
Question 150 Discuss
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What are the thin filamentous extensions that the motile bacterial cells have from their cell wall called?

A
Fimbriae
B
Flagella
C
Lamellae
D
Pili

Answer & Explanation

Correct Option: B

Bacterial flagella are structurally distinct, long, whip-like filamentous protein extensions strongly protruding from the cell wall that rapidly rotate like a microscopic propeller to actively thrust the bacteria through dense liquid environments.
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