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MDCAT
Biology
2017

Biology · Biological Molecules

Work through this past-paper style MCQ, then read the full explanation. Practice more biology questions on mMCQ with adaptive practice and topic analytics.

Question

Most proteins are made up of _________ type of amino acids.

Options
  • A

    20

  • B

    170

  • C

    25

  • D

    200

Explanation

Many naturally occurring amino acids have been found however, only 20 of those types are known to be found in the proteins making up the body.

About 170 types of amino acids have been found to occur in cells and tissues. Of these, 25 are constituents of proteins. Most of the proteins, however, are made up of 20 types of amino acids. (PTB page:27)

This option is incorrect.

About 170 types of amino acids have been found to occur in cells and tissues. Of these, 25 are constituents of proteins. Most of the proteins, however, are made up of 20 types of amino acids. (PTB page:27)

This option is incorrect.

About 170 types of amino acids have been found to occur in cells and tissues. Of these, 25 are constituents of proteins. Most of the proteins, however, are made up of 20 types of amino acids. (PTB page:27)

This option is incorrect.

About 170 types of amino acids have been found to occur in cells and tissues. Of these, 25 are constituents of proteins. Most of the proteins, however, are made up of 20 types of amino acids. (PTB page:27)

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Tagged under Biology · Biological Molecules · 2017