Biology Questions

Q:

Enzymes are important because they

A) maintain cell shape B) transfer genetic information
C) contain water D) speeds up chemical reactions
 
Answer & Explanation Answer: D) speeds up chemical reactions

Explanation:

Enzymes in the body are those which play an important role of breaking down the larger molecules to small and speeds up the chemical reactions.

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0 2059
Q:

In what chief capacity does vitamin k function?

A) raise plasma calcium B) blood clot
C) produce rhodopsin D) bone density
 
Answer & Explanation Answer: B) blood clot

Explanation:

The chief capacity of vitamin K is to help our blood clot so that we don't bleed too much.

Vitamin K is actually made up of two different types of vitamins, Vitamin K1 and Vitamin K2. They are both responsible for helping the blood to clot so that people do not bleed to death. Vitamin K1 can be consumed by eating leafy green vegetables, such as kale and spinach, as well as other vegetables, such as broccoli and collard greens. Meats, cheeses, and eggs can provide a great source of Vitamin K2.

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3 2057
Q:

What are the four bases that make up DNA?

Answer

A DNA is made up of four bases called Adenine, Thymine, Cytosine and Guanine.

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1 2045
Q:

Which of the following is not connective tissue?

A) Bone B) Cartilage
C) Blood D) Skeletal muscle
 
Answer & Explanation Answer: D) Skeletal muscle

Explanation:
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3 2039
Q:

The pale yellow colour of urine is due to the presence of which pigment?

A) Urochrome B) Urophyll
C) Chlorophyll D) Chloroplast
 
Answer & Explanation Answer: A) Urochrome

Explanation:
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1 2038
Q:

Which process requires no energy from the cell?

A) Osmosis B) Diffusion
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The processes both osmosis and diffusion come under passive transport and require no energy. The movement of solute from the region of higher concentration to the region of lower concentration is nothing but diffusion.

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2 2026
Q:

Bacterial decomposition of biological material under anaerobic condition is

A) fermentation B) fertilization
C) contamination D) composting
 
Answer & Explanation Answer: A) fermentation

Explanation:
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2 2026
Q:

The temperature danger zone for food is

A) 5 - 63 deg B) above 45 deg
C) below 15 deg D) None of the above
 
Answer & Explanation Answer: A) 5 - 63 deg

Explanation:

The temperature danger zone for the food that cannot be stored for long time is between 5 degrees to 63 degrees centigrade.

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1 2023