IB Biology HL B1.2.1 Generalized Amino Acid Structure Questions

Practise IB Biology HL B1.2.1 by drawing the four groups around an amino acid’s alpha carbon and identifying nitrogen and sulfur in proteins.

Exam points

Draw the general amino acid structure with an alpha carbon bonded to amine, carboxyl, H and R-group.
State that proteins contain carbon, hydrogen, oxygen and nitrogen, and usually sulfur.

[Maximum number: 3]

The molecules of all amino acids include an amine group, a carboxyl group and an R-group. Draw a diagram to show the structure of an amino acid molecule.

Figure for Answer to Question IB Biology HL B1.2.1 Generalized Amino Acid Structure Questions question 1 — IB Biology HL

and bonded to C ;

c.

Allow a specific amino acid R -
group in marking point c, such
as $\mathrm{CH}_{3}$ (in alanine).

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IB Biology HL B1.2.1 Generalized Amino Acid Structure Questions question 1