Bacterial endospores Option 1 Are highly hydrated spores Option 2 Contain diaminopimelic acid in cortex as anticoagulant Option 3 Contain dipicolinic acid in cortex Option 4 Are more a means of reproduction than perennation

Options

A. Are highly hydrated spores
B. Contain diaminopimelic acid in cortex as anticoagulant
C. Contain dipicolinic acid in cortex
D. Are more a means of reproduction than perennation

Answer

To solve the question regarding bacterial endospores, we will analyze each option provided and determine which statement is correct.

### Step-by-Step Solution:

1. **Understanding Bacterial Endospores**:
- Bacterial endospores are dormant, heat-resistant structures formed within bacterial cells. They are designed to survive harsh environmental conditions.

2. **Analyzing Option 1**:
- "Are highly hydrated spores."
- This statement is incorrect. Bacterial endospores are dehydrated structures, not hydrated. Their dehydration contributes to their heat resistance.

3. **Analyzing Option 2**:
- "Contain diaminopimelic acid in cortex as anticoagulant."
- This statement is also incorrect. Diaminopimelic acid is a component of the bacterial cell wall, not specifically related to endospores. It does not serve as an anticoagulant in this context.

4. **Analyzing Option 3**:
- "Contain dipicolinic acid in cortex."
- This statement is correct. Dipicolinic acid is a significant component of the endospore's cortex and is crucial for its heat resistance.

5. **Analyzing Option 4**:
- "Are more a means of reproduction than perennation."
- This statement is incorrect. Endospores are primarily a means of survival (perennation) rather than reproduction. They allow bacteria to endure unfavorable conditions until they can reproduce.

### Conclusion:
The correct option is **Option 3: "Contain dipicolinic acid in cortex."**

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