Biology Questions

Q:

Which of the following carries oxygen to various parts of human body?

A) Red blood cells B) White blood cells
C) Plasma D) Nerves
 
Answer & Explanation Answer: A) Red blood cells

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Q:

What is the function of guard cells of stomata?

A) Opening of stomata only B) Closing of stomata only
C) Both opening and closing of stomata D) Neither opening nor closing of stomata
 
Answer & Explanation Answer: C) Both opening and closing of stomata

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Q:

By which process substance like carbon dioxide or oxygen can move across the cell membrane?

A) Plasmolysis B) Sedimentation
C) Diffusion D) Transpiration
 
Answer & Explanation Answer: C) Diffusion

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Q:

Which gland secretes bile, a digestive fluid?

A) pancreas B) liver
C) thyroid D) testes
 
Answer & Explanation Answer: B) liver

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Q:

Eustachian Tube is located in which part of human body?

A) Nose B) Ear
C) Eyes D) Throat
 
Answer & Explanation Answer: B) Ear

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Q:

Zeatin is produced in ____ and transported to ___ in the xylem where it promotes cell division.

A) Shoots, Roots,  B) Roots, Shoots
C) Stems, Leaves D) Leaves, Stems
 
Answer & Explanation Answer: B) Roots, Shoots

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Q:

Which of the following type of medicine is used for treating indigestion?

A) Antibiotic B) Analgesic
C) Antacid D) Antiseptic
 
Answer & Explanation Answer: C) Antacid

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Q:

Proteins are polymers formed from

A) carbohydrates B) amino acids
C) nucleic acids D) lipids
 
Answer & Explanation Answer: B) amino acids

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