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 Biology Questions

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Q:

Which of the following micro-organism causes diseases like polio and chicken pox?

A) Bacteria B) Protozoa
C) Algae D) Virus
 
Answer & Explanation Answer: D) Virus

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Q:

Which among the following does not have a cell wall?

A) Euglena B) Paramecium
C) Gonyaulax D) Mycoplasma
 
Answer & Explanation Answer: D) Mycoplasma

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Q:

Presence of large amounts of nutrients in waters also causes excessive growth of _________ algae.

A) Biomagnification B) Algal bloom
C) planktonic D) Eutrophication
 
Answer & Explanation Answer: C) planktonic

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1 1731
Q:

What produces the striations of a skeletal muscle cell?

Answer

The striations are a result of the A bands of sarcomeres appearing as relatively wide, dark stripes under the microscope, which alternate with narrower, lighter colored stripes formed by the I bands. 


The striations of skeletal muscle are created by the organization of actin and myosin filaments resulting in the banding pattern of myofibrils.

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1 1729
Q:

Some roots, called _________________, arise from an organ other than the radicle.

A) tap roots B) stilt roots
C) fibrous roots D) adventitious roots
 
Answer & Explanation Answer: D) adventitious roots

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Q:

Which of the following is the largest known cell?

A) Eukaryotic Cell B) Prokaryotic Cell
C) Mycoplasma D) Ostrich Eggs
 
Answer & Explanation Answer: D) Ostrich Eggs

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1 1722
Q:

Which of the following is responsible for transport of food and other substances in plants?

A) Xylem B) Phloem
C) Chloroplast D) None of these
 
Answer & Explanation Answer: B) Phloem

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1 1721
Q:

The body cavity which is lined by mesoderm is called __________.

A) Coelom B) Chordata
C) Arthropoda D) Platyhelminthes
 
Answer & Explanation Answer: A) Coelom

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