Trehalose present in the plasma of cockroach is a 

Options

A. sugar
B. amino acid
C. lipid
D. organic acid

Answer

To answer the question, "Trehalose present in the plasma of cockroach is a," we can follow these steps:

### Step-by-Step Solution:

1. **Identify Trehalose**: Understand what trehalose is. It is a type of sugar that is commonly found in various organisms, including insects like cockroaches.

2. **Location in Cockroach**: Recognize that trehalose is present in the plasma of cockroaches, which refers to the hemolymph in insects. Hemolymph is the fluid equivalent to blood in vertebrates.

3. **Function of Trehalose**: Acknowledge the role of trehalose in the cockroach's physiology. It serves as a major blood sugar and acts as an instant energy source for the insect. This is crucial for their survival and energy metabolism.

4. **Comparison with Other Options**: Evaluate the other options provided in the question:
- **Amino Acids**: These are the building blocks of proteins and are not the same as sugars.
- **Lipids**: These are fats and oils, which are different from sugars.
- **Organic Acids**: These are compounds that contain carbon and are not classified as sugars.

5. **Conclusion**: Since trehalose is a sugar and none of the other options (amino acids, lipids, organic acids) fit the description, we conclude that trehalose is indeed a sugar.

### Final Answer:
Trehalose present in the plasma of cockroach is a **sugar**.

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