Question

Select the incorrect statements.
A. Collagen is the most abundant protein in the whole biosphere and RuBisCo is the most abundant protein in the animal world.
B. Proteins are hetero polymers made up of amino acids.
C. Ribozymes are nucleic acids with catalytic power.
D. Nucleic acid serves as genetic material.

Answer 1

Hint: The living organism utilizes various types of molecules that are needed for different activities such as development, growth and reproduction. Several biological processes are dependent on molecules such as proteins, carbohydrates etc. Proteins are involved in a number of different structures as well as functions in living organisms.

Complete answer:
Collagen consists of amino acid chains that are bound together to form triple helix structure. It is a structural protein and it forms the most abundant animal protein It forms an important part of the extracellular matrix and is found in the different types of connective tissues such as cartilage, bones, tendons, ligaments and also skin.
RuBisCo or ribulose-1, 5- bisphosphate carboxylase-oxygenase is an enzyme and it is involved in the important steps of the process of carbon fixation which is utilized by the plants to fix atmospheric carbon dioxide. It is considered as the most abundant enzyme and protein in the biosphere.
Proteins are made up of chains of amino acids which are linked together with the help of bonds known as the peptide bonds. The protein molecules are made up of smaller subunits which are known as the monomers. Proteins are polymers that are made up of different types of monomers and so are known as heteropolymers.
Ribozymes are also known as ribonucleic acid enzymes and are nucleic acids. The ribozymes are the RNA molecules that are known to possess the power or ability to catalyze the distinct biochemical reactions. They are known to function in the splicing of RNA in gene expression. The ribozymes behave and function both as genetic material and also as a biological catalyst in reactions as that of the protein enzymes.
The nucleic acids are macromolecules and are present in two forms which are the DNA and RNA. The nucleic acid is the important molecule as it functions as the genetic material and contains all the information that is essential to maintain, growth and development of an organism. They are known to store genetic encoded information which are transferred from one generation to the other.

Hence, the correct answer is option (A).

Note: Proteins are involved in many types of molecules and macromolecules such as nucleic acids, enzymes, structural proteins etc. The collagen is a structural protein and is the most abundant protein found in animals while RuBisCo is the most important protein that is found in the whole biosphere.