Biology Questions

Q:

Which process requires cellular energy?

A) Passive transport B) Active transport
C) Both A & B D) None of the above
 
Answer & Explanation Answer: B) Active transport

Explanation:

Active transport is a method of transport of ions or molecules along the cell membrane in the cell from lower to higher concentration region and which needs cellular energy.

There are three main types of Active Transport. They are:

  1. The Sodium-Potassium pump,
  2. Exocytosis, and
  3. Endocytosis.
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Q:

Homeostasis is the condition in which the body maintains

A) a relatively stable internal environment within limits B) a changing state within an unlimited range
C) the lowest possible energy usage D) a static state with no deviation from preset points
 
Answer & Explanation Answer: A) a relatively stable internal environment within limits

Explanation:
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Q:

Companion cells are unique to

A) Bryophytes B)  Pteridophytes
C) Angiosperms D)  Gymnosperms
 
Answer & Explanation Answer: C) Angiosperms

Explanation:
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Q:

Which one of the following weeds is effective in controlling water pollution caused by industrial effluents?

A) Parthenium B) Elephant grass
C) Water hycinth D) Mogar grass
 
Answer & Explanation Answer: A) Parthenium

Explanation:
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Q:

Persons with type AB blood are sometimes called universal donors.

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

Explanation:

Persons with type AB blood are sometimes called universal donors is a FALSE statement. 


 


Persons with type AB blood are sometimes called universal recepients.


 


Persons with type O blood  are called universal donors.


 

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Q:

Which among the following is also called as 'power house of the cell'?

A) Plastids B) Mitochondria
C) Golgi bodies D) Cell wall
 
Answer & Explanation Answer: B) Mitochondria

Explanation:
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Q:

Which category of compound is most concentrated energy source?

A) Fats B) Starch
C) Proteins D) Vitamins
 
Answer & Explanation Answer: A) Fats

Explanation:
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Q:

Asterias (Star fish), Echinus (Sea urchin), Antedon (Sea Lily) are all examples of which Phylum?

A) Echinodermata B) Annelida
C) Platyhelminthes D) Arthropoda
 
Answer & Explanation Answer: A) Echinodermata

Explanation:
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