Biology Questions

Q:

Which of the following is not true of graded potentials?

A) They can form on receptor endings B) They increase amplitude as they move away from the stimulus point
C) They are short-lived D) They can be called postsynaptic potentials
 
Answer & Explanation Answer: B) They increase amplitude as they move away from the stimulus point

Explanation:

Graded potentials are changes in membrane potential that vary in size, as opposed to being all-or-none.

 

In the given options, They increase amplitude as they move away from the stimulus point is not true about the graded potentials.

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Q:

What is full form of BOD?

A) Biological Oxygen Deficit B) Biological Oxygen Difference
C) Biological Oxygen Demand D) Biological Oxygen Distribution
 
Answer & Explanation Answer: C) Biological Oxygen Demand

Explanation:
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Q:

Octopus belongs to the phylum

A) Mollusca B) Cnidaria
C) Echinodermata D) Chordata
 
Answer & Explanation Answer: A) Mollusca

Explanation:
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Q:

In Animal Kingdom classification, which of the following is not a Phylum?

A) Mollusca B) Chordata
C) Coelomates D) Anneldia
 
Answer & Explanation Answer: C) Coelomates

Explanation:
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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

Explanation:
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Q:

In a Punnett Square with the cross AaBb x Aabb, how many AaBb genotypes would be created?

A) 4 B) 1
C) 7 D) 6
 
Answer & Explanation Answer: A) 4

Explanation:
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Q:

The main protein found in milk is ____________

A) Albumin B) Globulin
C) Globin D) Casein
 
Answer & Explanation Answer: D) Casein

Explanation:
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Q:

The alimentary canal is a long tube that extends from ______.

A) mouth to stomach B) stomach to large intestine
C) small intestine to anus D) mouth to anus
 
Answer & Explanation Answer: D) mouth to anus

Explanation:
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