BIOMOLECULES AND ENZYMES

Detailed explanation-1: -The amine group of the amino acid and the nitrogenous base of the nucleic acids contains the radioactive nitrogen labeling. Therefore, proteins and nucleic acids molecules will be labeled.

Detailed explanation-2: -If cells are grown in a medium containing radioactive 32P-labeled phosphate both phospholipids and nucleic acids will be labelled with 32P. Phospholipids and nucleic acids both possess phosphate groups in their structures; therefore, phosphate can be replaced and easily substituted with 32P-labeled phosphate groups.

Detailed explanation-3: -The radioactive amino acids identified were aspartic acid, alanine and smaller amounts of 3-and 4-carbon amino acids. This finding as well as the total absence of radioactive glutamic acid substantiates the mechanism for reduction of COsub 2 previously postulated by members of this laboratory.

Detailed explanation-4: -The monomers combine with each other using covalent bonds to form larger molecules known as polymers. In doing so, monomers release water molecules as byproducts. This type of reaction is known as dehydration synthesis, which means “to put together while losing water.”

Detailed explanation-5: -Hence, the correct answer is ‘Collagen’