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Zoology MCQs for NEET — Practice Questions with Answers

Practice free Zoology NEET multiple-choice questions online with instant answers and detailed explanations. No login required.

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Which of the following is Sulphur containing Amino acid?

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Explanation

Cystein and Methionine are sulphur containing amino acids

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Which of the following is the most complex amino Acid

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Explanation

Tryptophan is the most complex amino acid.

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Which of the following is the optically inactive amino acid?

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Explanation
  • Glycine is achiral so optically inactive
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Which of the following is an essential amino acid?

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Explanation
  • There are 10 Essential amino acids which are not synthesised by our body. Isoleucine, Leucine and Lysine are among them.
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Which of the following is not  an essential amino acid?

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Explanation
  • There are 10 Essential amino acids which are not synthesised by our body. Alanine is non-essential amino acid
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Which of the amino acid contains hydroxyl group?

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Explanation

serine and threonine contains hydroxyl(-OH) group.

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Which of the following is called as imino acid?

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Explanation

Proline is called imino acid.

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Which of the following form  of amino acid is present in Human Body?

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Explanation
  • L- form(Position of NH2 on left side) of amino acid is present in our human body and l and d form is based on Optical rotation.
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Out of 20 proteinaceous amino acids how many of them are laevorotatory(l-form).

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Explanation
  • Except Glycine all are laevorotatory. Glycine is optically inactive
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Which of the following is semi- essential amino acid?

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Explanation

Histidine and Arginine are synthesised in very small amount(which are not sufficient to fulfill body’s demand) in our body so they are called as semi- essential amino acids.

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