Go through the following statements
(i) IN chlorophyceae the flagella re 2 in number, unequal in size and lateral in position
(ii) In phaeophyceae flagella are 2-8 in number, equal in size and apical in position (iii) Chlorella and Spirullina re rich in proteins and are used as food supplements even by space travellers. (iv) The leaves in pteridophyta are microphylls as in Selaginella or macrophylls as in ferns.
Which of these are correct

Options

A. a) i,ii,iii
B. b) ii,iii
C. c) i,ii,iv
D. d) iii,iv

Answer

To determine which statements are correct regarding the plant kingdom, particularly the groups Chlorophyceae, Phaeophyceae, and Pteridophyta, we will analyze each statement step by step.

### Step-by-Step Solution:

1. **Statement (i)**: "In Chlorophyceae, the flagella are 2 in number, unequal in size, and lateral in position."
- **Analysis**: Chlorophyceae, also known as green algae, typically have flagella that are 2 in number and equal in size. They are usually apical in position, not lateral. Therefore, this statement is **incorrect**.

2. **Statement (ii)**: "In Phaeophyceae, flagella are 2-8 in number, equal in size, and apical in position."
- **Analysis**: Phaeophyceae, or brown algae, generally have 2 flagella that are unequal in size (one being whiplash and the other tinsel-shaped) and are lateral in position. Thus, this statement is also **incorrect**.

3. **Statement (iii)**: "Chlorella and Spirulina are rich in proteins and are used as food supplements even by space travelers."
- **Analysis**: Chlorella and Spirulina are indeed rich in proteins, vitamins, and amino acids. They are known for their nutritional value and are used as food supplements, including by astronauts in space missions. Therefore, this statement is **correct**.

4. **Statement (iv)**: "The leaves in Pteridophyta are microphylls as in Selaginella or macrophylls as in ferns."
- **Analysis**: Pteridophyta includes both types of leaves: microphylls (small leaves with a single vein) as seen in Selaginella, and macrophylls (larger leaves with a branched vascular system) as seen in ferns. Thus, this statement is **correct**.

### Conclusion:
- **Correct Statements**:
- Statement (iii) is correct.
- Statement (iv) is correct.
- **Incorrect Statements**:
- Statement (i) is incorrect.
- Statement (ii) is incorrect.

### Final Answer:
The correct statements are (iii) and (iv).

---