Fungi differ Algae in having

Options

A. mainly cellulosic cell wall
B. mainly cell wall of chitin
C. unicellular nonjackete sex organs
D. stacrh as reserve food

Answer

To answer the question "Fungi differ from Algae in having," we can follow these steps:

### Step 1: Identify the Key Differences
Fungi and algae are both part of the eukaryotic domain but belong to different kingdoms. Understanding their fundamental differences is crucial.

### Step 2: Analyze Cell Wall Composition
- **Algae**: The cell wall of algae is primarily composed of cellulose, which is a polysaccharide made of glucose units. This is characteristic of plant-like organisms.
- **Fungi**: In contrast, fungi have a cell wall made of chitin, which is a structural polysaccharide composed of N-acetylglucosamine units. This is a significant difference that sets fungi apart from algae.

### Step 3: Consider Other Differences
While the cell wall composition is a major difference, fungi also differ from algae in other aspects such as:
- Fungi are heterotrophic (they absorb nutrients from organic material), while algae are primarily autotrophic (they produce their own food through photosynthesis).
- Fungi reproduce through spores, while algae can reproduce both sexually and asexually through various methods.

### Step 4: Conclude the Main Difference
The most defining characteristic that differentiates fungi from algae is the composition of their cell walls. Therefore, the correct answer to the question is that fungi differ from algae in having a cell wall made of chitin.

### Final Answer
Fungi differ from algae in having a cell wall made of chitin.

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