The storage product of rhodophyceae is

Options

A. Glycogen
B. Chrysolaminarin
C. Starch
D. Floridean starch.

Answer

### Step-by-Step Solution:

1. **Understanding Rhodophyceae**:
- Rhodophyceae, commonly known as red algae, are a group of algae characterized by the presence of pigments such as phycoerythrin, which gives them their red color.

2. **Evaluating the Options**:
- The question provides four options for the storage product of Rhodophyceae:
- A) Glycogen
- B) Chrysolaminarian
- C) Starch
- D) Floridian starch

3. **Analyzing Glycogen**:
- Glycogen is a polysaccharide that serves as a storage form of glucose in animals. It is primarily stored in the liver and muscle tissues. Since Rhodophyceae are not animals, glycogen is not their storage product.
- **Conclusion**: Incorrect option.

4. **Analyzing Chrysolaminarian**:
- Chrysolaminarian is a polysaccharide storage product found in Bacillariophyta (diatoms), not in Rhodophyceae.
- **Conclusion**: Incorrect option.

5. **Analyzing Starch**:
- Starch is a common storage polysaccharide in plants, composed of amylose and amylopectin. However, it is not the primary storage product in Rhodophyceae.
- **Conclusion**: Incorrect option.

6. **Analyzing Floridian Starch**:
- Floridian starch is a storage polysaccharide found specifically in red algae (Rhodophyceae). It is similar to regular starch but is more branched, resembling semi-amylopectin. This makes it a unique characteristic of Rhodophyceae.
- **Conclusion**: Correct option.

7. **Final Answer**:
- The storage product of Rhodophyceae is **Floridian starch**.