Rice is deficient in which of following essential amino acids?

Options

A. Lysine
B. Leucine
C. Glycine
D. Alanine

Answer

To determine which essential amino acid rice is deficient in, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Classification of Amino Acids**:
- Amino acids are categorized into two groups: essential and non-essential.
- Essential amino acids are those that the human body cannot synthesize and must be obtained from the diet.

2. **Identify Essential Amino Acids**:
- Essential amino acids include lysine, leucine, isoleucine, valine, threonine, methionine, phenylalanine, tryptophan, and histidine.

3. **Analyze the Nutritional Profile of Rice**:
- Rice is a staple food that is rich in carbohydrates but has a limited amino acid profile.
- It is known to be deficient in certain essential amino acids, particularly lysine.

4. **Evaluate the Options Given**:
- The options provided are:
- a) Lysine
- b) Leucine
- c) Glycine
- d) Alanine
- Among these, lysine is recognized as the essential amino acid that rice lacks.

5. **Conclude the Answer**:
- Based on the analysis, rice is deficient in the essential amino acid **lysine**.

### Final Answer:
Rice is deficient in **lysine**.