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 Biology Questions

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Q:

Fats, oils and cholesterol are all types of what?

 

 

A) Cell membranes B) Lipids
C) Hormones D) Fatty acids
 
Answer & Explanation Answer: D) Fatty acids

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Q:

Fill in the blank with the most appropriate option.

Plants that do not have a differentiated plant body belong to the group _____

A) Bryophyta B) Phanerogams
C) Thallophyta D) Pteridophyta
 
Answer & Explanation Answer: C) Thallophyta

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Q:

Which one of the following organisms is dependent on saprophytic mode of nutrition?

 

A) Agaricus B) Ulothrix
C) Riccia D) Cladophora
 
Answer & Explanation Answer: A) Agaricus

Explanation:

Saprophytic fungi feed on dead plant and animal remains. Many are extremely beneficial, breaking down this organic material into humus, minerals and nutrients that can be utilised by plants. Agaricus is one among them.

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Q:

Which bacterium is used to turn milk to curd?

 

A) Streptomyces B) Vibrio
C) Lactobacillus D) Spirilla
 
Answer & Explanation Answer: C) Lactobacillus

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Q:

Arrange the following ina proper sequence.

A. Mutation

B. Reproductive isolation

C. Natural selection

D. Evolution

 

A) D,C,B,A B) C,B,A,D
C) A,C,D,B D) A,B,C,D
 
Answer & Explanation Answer: D) A,B,C,D

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Q:

Which of the following muscular tissue is multinucleated?

 

A) Smooth muscle B) Cardiac muscle  
C) Skeletal muscle D) Unstriated muscle
 
Answer & Explanation Answer: C) Skeletal muscle

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Q:

A sarcomere is best described as a

 

A) fixed structural unit within a myofibril bounded by Z lines. B) moveable structural unit within a myofibril bounded by H zones.
C) moveable structural unit within a myofibril bounded by Z lines. D) fixed structural unit within a myofibril bounded by A bands.
 
Answer & Explanation Answer: C) moveable structural unit within a myofibril bounded by Z lines.

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Q:

Animal without red blood cells

A) Frog B) Earthworm
C) Snake D) Peacock
 
Answer & Explanation Answer: B) Earthworm

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