True/False
(i) A protein is a homopolymer not a heteropolymer
(ii) RUBISCO is the most abundant protein in the whole biosphere
(iii) Cellulose is a homopolymer
(iv) In polysaccharide chain (glycogen) the right end is called non reducing
(v) startch has helical structure and its given iodine test
(vi) Cellulose contains a complex helical structure and can hold `I_(2)`
(vii) Chitin is a heteropolymer

Answer

Let's analyze each statement step by step to determine whether they are true or false.

### Step-by-Step Solution:

1. **Statement (i): A protein is a homopolymer not a heteropolymer.**
- **Analysis:** A protein is made up of different amino acids, which means it is composed of various monomeric units. Therefore, proteins are heteropolymers, not homopolymers.
- **Conclusion:** **False**

2. **Statement (ii): RUBISCO is the most abundant protein in the whole biosphere.**
- **Analysis:** RUBISCO (Ribulose-1,5-bisphosphate carboxylase/oxygenase) is indeed the most abundant protein on Earth, primarily found in plants as part of the photosynthesis process.
- **Conclusion:** **True**

3. **Statement (iii): Cellulose is a homopolymer.**
- **Analysis:** Cellulose is made up of repeating units of glucose, which means it consists of the same type of monomer. Thus, it is classified as a homopolymer.
- **Conclusion:** **True**

4. **Statement (iv): In polysaccharide chain (glycogen) the right end is called non-reducing.**
- **Analysis:** In glycogen, the right end of the chain is indeed a non-reducing end, as it does not have a free aldehyde or ketone group.
- **Conclusion:** **False**

5. **Statement (v): Starch has a helical structure and is given iodine test.**
- **Analysis:** Starch does have a helical structure and can form a complex with iodine, which is used as a test for starch.
- **Conclusion:** **True**

6. **Statement (vi): Cellulose contains a complex helical structure and can hold I2.**
- **Analysis:** Cellulose has a linear structure, not a helical one, and it does not form a complex with iodine like starch does.
- **Conclusion:** **False**

7. **Statement (vii): Chitin is a heteropolymer.**
- **Analysis:** Chitin is made up of repeating units of N-acetylglucosamine, which means it is a homopolymer, not a heteropolymer.
- **Conclusion:** **False**

### Final Answers:
- (i) False
- (ii) True
- (iii) True
- (iv) False
- (v) True
- (vi) False
- (vii) False