Which of the following is a test for proteins?
In which structure of protein, the polypeptide chain forms all possible hydrogen bonds by twisting into right handed screw?
Haemoglobin is an example of:
The amino acid which is not optically active is:
Which one of the following is a water soluble vitamin?
The amino acid which are synthesized in the body are known as:
The enzyme pepsin hydrolyses:
Which of the following statements is correct about Enzymes?
Certain organic compounds are required in small amount in our diet but their deficiency causes diseases. The compounds are called:
When more than ten amino acids react, then the product formed is called:
Enzymes belong to the class of compounds called:
In aqueous solution, the carboxyl group can lose a proton and amino group can accept a proton, giving rise to a dipolar ion known as:
The symptoms of retinol excess are
Amino acid are connected to each other by:
The active form of vitamin D is:
Which of the following compounds is a recipient of the one carbon fragments that tetra hydro folate receives and transfers?
On hydrolysis, proteins give:
Deficiency of which vitamin causes scurvy?
When a protein is subjected to physical changes the protein loses its biological activity. This is known as:
_________ are biocatalysts which speed up the reactions in biosystems.