Select the wrong statement from the following .

Options

A. Ribozymes are nucleic acids with catalytic power .
B. Nucleic acids serve as genetic material .
C. Proteins , nucleic acids and polysaccharides are the only three of macromolecules found in the living system.
D. Collagen is the most abundant protein in the whole of the biosphere and RuBisCo is the most abundant protein in the as animal world .

Answer

To solve the question "Select the wrong statement from the following," we will analyze each statement provided in the options.

### Step-by-Step Solution:

1. **Statement 1: Ribozymes are nucleic acids with catalytic power.**
- Ribozymes are indeed RNA molecules that have catalytic properties. They can catalyze biochemical reactions, such as splicing and gene reactions. Therefore, this statement is **correct**.

2. **Statement 2: Nucleic acids serve as genetic material.**
- Nucleic acids, which include DNA and RNA, serve as genetic material in various organisms. DNA is the genetic material in most organisms, while RNA can serve as genetic material in some viruses. Thus, this statement is also **correct**.

3. **Statement 3: Proteins, nucleic acids, and polysaccharides are the only three macromolecules found in living systems.**
- Proteins, nucleic acids, and polysaccharides are indeed three major types of macromolecules found in living organisms. However, lipids are also considered macromolecules and are essential components of living systems. Therefore, this statement is **incorrect**.

4. **Statement 4: Collagen is the most abundant protein in the whole biosphere, and Rubisco is the most abundant protein in the animal world.**
- Collagen is a structural protein found primarily in animals and is indeed one of the most abundant proteins in the animal kingdom. However, Rubisco (ribulose bisphosphate carboxylase/oxygenase) is the most abundant protein in the whole biosphere, not just in the animal world. This statement is also **incorrect** because it misrepresents the abundance of these proteins.

### Conclusion:
The wrong statement among the options is **Statement 3**: "Proteins, nucleic acids, and polysaccharides are the only three macromolecules found in living systems."