Biology Questions

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:

Epidermal cells of which part of plant often secrete a waxy water resistant layer on their outer surface

 

A) Aerial parts only B) Roots only
C) Both aerial parts and roots D) Neither aerial parts nor root
 
Answer & Explanation Answer: A) Aerial parts only

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Q:

Xylem helps in transportation of which of the following?

A) Food B) Water
C) Nutrients D) Both food and water
 
Answer & Explanation Answer: B) Water

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Q:

Prothrombin, responsible for clotting of blood is released by_____.

A) Small Intestine B) Blood Platelets
C) Large Intestine D) Heart
 
Answer & Explanation Answer: B) Blood Platelets

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Q:

In a majority of flowering plants, out of the four megaspores, what is the ratio of functional and degenerate megaspores?

A) 2:2 B) 1:3
C) 3:1 D) 4:0
 
Answer & Explanation Answer: B) 1:3

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Q:

Which of the following bacteria is responsible for the formation of curd?

A) Lycopodium B) Yeast
C) Lacto-bacillus D) Fungus
 
Answer & Explanation Answer: C) Lacto-bacillus

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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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Q:

Which of the following serves as a nutritive tissue for the growing embryo?

A) Ovule B) Zygote
C) Ovary D) Endosperm
 
Answer & Explanation Answer: D) Endosperm

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