The degree of inhibition for an enzyme catalyzed reaction at a particular inhibitor concentration is independent of initial substrate concentration. The inhibition follows

Which one of the following is INCORRECT about protein structures?

A. A protein fold is stabilized by favorable noncovalent interactions

B. All parts of a fold can be classified as helices, strands or turns

C. Two non-covalent atoms cannot be closer than the sum of their van der Waals radii

D. The peptide bond is nearly planar

Which one of the following amino acids has three ionizable groups?

A. Glycine

B. Leucine

C. Valine

D. Lysine

During lactic acid fermentation, net yield of ATP and NADH per mole of glucose is

A. 2 ATP and 2 NADH

B. 2 ATP and 0 NADH

C. 4 ATP and 2 NADH

D. 4 ATP and 0 NADH

The reactions leading to the formation of amino acids from the TCA cycle intermediates are

A. Carboxylation

B. Isomerization

C. Transamination

D. Decarboxylation