Question

1. which of the following is a conditional amino acid?

tyrosine
asparagine
histidine
threonine

1. there are nonessential amino acids.

6
9
11
13

Explanation:

1. Conditional amino - acids are those that are normally non - essential but become essential under certain conditions. Tyrosine is a conditional amino acid.
2. There are 11 nonessential amino acids that can be synthesized by the human body.

Answer:

1. Tyrosine
2. 11