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 Biology Questions

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Q:

Which of the following plays an important part in photosynthesis?

A) Chloroplast B) Centrosome
C) Tonoplast D) Nematoblast
 
Answer & Explanation Answer: A) Chloroplast

Explanation:

The Chloroplast contains the wonder green pigment chlorophyll which is able to trap solar energy and use it for synthesis of food

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Filed Under: Biology

9 7400
Q:

Nitrogenous bases in DNA and RNA?

A) Adenine B) Cytosine
C) Guanine D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

Nitrogenous base: A molecule that contains nitrogen and has the chemical properties of a base.

 

DNA and RNA ::

 

The nitrogenous bases in DNA are

Adenine (A),

Guanine (G),

Thymine (T), and

Cytosine (C).

 

Whereas the nitrogenous bases in RNA are the same, with one exception:

Adenine (A),

Guanine (G),

Uracil (U), and

Cytosine (C).

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Filed Under: Biology
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6 7396
Q:

Water pollution of a river is measured by_______

A) Amount of chlorine dissolve in water B) Amount of Ozone dissolve in water
C) Amount of nitrogen dissolve in water D) Amount of oxygen dissolve in water
 
Answer & Explanation Answer: D) Amount of oxygen dissolve in water

Explanation:
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13 7346
Q:

Angioplasty is the most typical treatment for arteriosclerosis.

A) TRUE B) FALSE
Answer & Explanation Answer: B) FALSE

Explanation:

Angioplasty, also known as balloon angioplasty or PTA, is a minimally invasive, endovascular procedure to widen narrowed or obstructed arteries or veins, typically to treat arterial atherosclerosis.


 


Hence, the given statement that Angioplasty is the most typical treatment for arteriosclerosis is FALSE.

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Subject: Biology
Exam Prep: AIEEE , Bank Exams , CAT
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6 7331
Q:

Nitrogen fixing bacteria is useful in growing which crop ________

A) Wheat B) Paddy
C) Legume D) Maiz
 
Answer & Explanation Answer: C) Legume

Explanation:
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28 7173
Q:

Phycology is the branch of botany in which we study about

A) Algae B) Fungi
C) Ecology D) Virus
 
Answer & Explanation Answer: A) Algae

Explanation:
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27 7077
Q:

Which best describes transformation in bacteria?

A) Bacteria take DNA from their environment. B) Bacteria inject DNA into another cell.
C) Bacteria lie dormant for many weeks. D) Bacteria transfer DNA with a bacteriophage.
 
Answer & Explanation Answer: A) Bacteria take DNA from their environment.

Explanation:

"Bacteria take DNA from their environment" is what best describes transformation in bacteria.

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4 7048
Q:

Blood is

A) alkaline B) neutral
C) like a buffer D) acidic
 
Answer & Explanation Answer: A) alkaline

Explanation:
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Filed Under: Biology

39 6968