CH3 1 .....CH, CH3 2 CH3 CH3 3 CH3

Step 7 of the citric acid cycle is shown. Which statement best describes what occurs in this step? CO₂ 1 CH || CH + H₂O CO₂ fumarate CO₂™ fumarase HO C-H CH₂ CO₂ malate A) Fumarate undergoes hydrogenation with hydrogens and electrons provided by the enzyme fumarase. B) Fumarate undergoes hydration with the aid of the enzyme fumarase. C) Fumarate undergoes hydrolysis with the aid of the enzyme fumarase. D) Fumarate undergoes reduction with the aid of the cofactor fumarase.

Kk.308.

NADH + H+ NAD+ H₂O FADH₂ COASH + NAD+ X FAD CO₂ + NADH + H+ H₂O GTP + COASH COASH GDP + Pi NAD+ NADH + H+ + CO₂ •COASH + NAD+ NADH + H+ + CO₂

R and S pair of enantiomers have same biological activity in the body   Question 4 options:   True   False

Label the pair of molecules below as: A. Enantiomers B. Diastereomers C. Identical HOCH2 H H OH OH HO H OA. Enantiomers OB. Diastereomers OC. Identical HO H CHO OHC CH₂OH H OH HO H

Draw the products that form when the thioester CH3CH2CH2COSCoA is hydrolyzed with water. Differentiate products by greater or lesser molecular weight.

None

Identify the compound with the highest pKa. CH3NH2 CH3OH O CH3COOH O H₂O

What class of enzymes to these two belong to?