Question

What is the number of essential amino-acid?

• A. \(11\)
• B. \(9\)
• C. \(12\)
• D. \(16\)

Hint:

Essential amino acids must be obtained from food because the human body cannot synthesize them adequately on its own.

Answer 1

The Correct Option is B

Concept: Essential amino acids are those amino acids that cannot be synthesized by the human body in sufficient amounts and therefore must be obtained through diet. These amino acids are necessary for growth, tissue repair, and proper body functioning.

Step 1: Recall the number of essential amino acids.
In humans, the number of essential amino acids is: \[ 9 \]

Step 2: Identify the correct option.
Among the given options: \[ 9 \] is the correct answer. Hence, the correct option is: \[ \boxed{(B)\ 9} \]