What are the similarities and differences between RNA replication and RNA transcription? Explain.

Name the different RNAs found in the cell and explain the structure of any one of these.

How is polypeptide chain elongated during protein biosynthesis? Describe the process.

Taking a suitable example explain the inhibition of protein biosynthesis by antibiotics in prokaryotes.

Which metabolic processes the following reactions belong to? What is the similarity between the two?

i) Pyruvate   Oxaloacetate

ii) Acetyl–SCoA   Malonyl-CoA

Name the enzyme involved in the conversion of pyruvate to acetyl–CoA. Explain how it is different from the other enzymes.

Describe in brief the first ATP - generating step of glycolysis.

Explain with the help of examples what is meant by convergent and divergent nature of metabolism

Define the following:

i) Entropy

ii) Free energy

iii) Metabolism

iv) Metabolites

Explain the mechanism involved in the enzyme catalysis of biochemical reactions.

Apoenzyme and Holoenzyme

Cofactor and Coenzyme

Name the types of interactions involved in the primary and higher order structures of protein. How is the primary structure of proteins different from the structural formula of organic compounds?

Name the types of interactions involved in the primary and higher order structures of protein. How is the primary structure of proteins different from the structural formula of organic compounds?

Describe the steps involved in the synthesis of a polypeptide

Write the structures of tyrosine and tryptophan. Which group are they categorised into and why?

What are the main steps involved in transcription? Briefly describe the process of transcription in a cell.

List the important functions of biomembranes.

What are lipoproteins? What is their functional role?

What are the blood group substances? How do they chemically differ from each other?