Biology - Questions and Answers, General Study (GK)

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1611.

Cell wall is chemically made up of

(a)Lipid, protein and carbohydrate

(b)Protein, carbohydrates and lipids

(c)Lignin, pectin and cellulose

(d)Cellulose, carbohydrate and protein

Comment

Answer is: C

1612.

Endocarp of fruit wall is

(a)The outermost hard layer

(b)The middle layer of fruit wall

(c)Innermost layer of fruit wall

(d)The leathery outer wall

Comment

Answer is: C

1613.

Which group of organism is responsible for enriching soil fertility is an area ?

(a)Blue-green algae

(b)Micro-organisms

(c)Cyanobacteria

(d)Bacteria

Comment

Answer is: C

1614.

Amphibious plants with non-vascular nature group is called as

(a)Pteridophytes

(b)Gymnosperms

(c)Angiosperms

(d)Bryophytes

Comment

Answer is: D

1615.

Biggest herbarium located in south India is

(a)Chennai

(b)Coimbatore

(c)Mysore

(d)Hyderabad

Comment

Answer is: B

1616.

Smallest flowering plant is

(a)Rafflesia

(b)Polyalthia

(c)Lippia

(d)Wolffia

Comment

Answer is: D

1617.

Economic use of the genus arancaria gymnosperm plant is

(a)Extraction of resin

(b)Extraction of alkaloids

(c)For paper industry

(d)Ornamental plant

Comment

Answer is: D

1618.

First plant viruses were discovered in

(a)Maize

(b)Tobacco

(c)Sugarcane

(d)Tea

Comment

Answer is: B

1619.

First plant viruses were discovered in

(a)Maize

(b)Tobacco

(c)Sugarcane

(d)Tea

Comment

Answer is: B

1620.

The most successful vector in higher plants is

(a)Ca MV

(b)PBR322

(c)SV 40

(d)Ti-plasmid

Comment

Answer is: D

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Biology - Questions and AnswersPage 162

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