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Zoology MCQs for NEET — Practice Questions with Answers

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Which of the following is a standard but non-essential amino acid?

Methionine

Tyrosine

Ornithine

Isoleucine

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Explanation

Tyrosine is standard(used in protein synthesis) as well as non-essential(synthesisied by our body) amino acid.

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Amide bond is found in all except

Enzymes

Polypeptides

Proteins

Amino acid

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Explanation

Amide bond can never be present in Amino acids.

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Which of the following group is present in Fatty acid

Carboxyl group

Carbonyl group

Hydroxyl group

Both 2 and 3

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Explanation

Refer NCERT, Heading 9.1, page-144, para 3

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Which of the following is true about Palmitic acid?

It is a saturated fatty acid

It has 16 Carbons including Carboxyl carbon

It has no double and triple bonds between carbon atoms

All of these

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Explanation

Refer NCERT, Heading 9.1, page-144, para 3

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Which of the following is not true about Palmitic acid?

It is a saturated fatty acid

It has 16 Carbons including Carboxyl carbon

It has no double and triple bonds between carbon atoms

It is an unsaturated fatty acids

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Explanation

Refer NCERT, Heading 9.1, page-144, para 3

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Which of the following is not true about Arachidonic acid?

It is a saturated fatty acid

It has 20 Carbons excluding Carboxyl carbon

It has no double and triple bonds between carbon atoms

All of these

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Explanation

Refer NCERT, Heading 9.1, page-144, para 3

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Arachidonic acid is

Polyunsaturated fatty acid

C₂₀H₃₂O₂

Saturated fatty acid

Both 1 and 2

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Explanation

Refer NCERT, Heading 9.1, page-144, para 3

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In triglycerides, glycerol is linked to Fatty acid with

Ether bond

Ester bond

Amide bond

Glycosidic bond

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Explanation

Refer NCERT, Heading 9.1, page-144, para 3

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How many times dehydration takes place in the formation of Triglycerides?

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Explanation

Refer NCERT, Heading 9.1, page-144, para 3

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How many times dehydration takes place in the formation of phospholipid(lecithin)?

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Explanation

Refer NCERT, Heading 9.1, page-144, para 3

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