Which amino acid has no chiral carbon atom (glycine)

The same question, asked 2 times: 10 May 2024 S1, 17 Apr 2026 S1. Every wording below, oldest first.

Try each one first, then open its answer.

Question 1
10 May 2024 S1
77 $\alpha$
Tap an option to check your answer.
Question 2
17 Apr 2026 S1
47 $Which from following amino acids does NOT contain chiral carbon?$
Tap an option to check your answer.