Question

1. The number of electrons generated in one glyoxylate cycle is
   1. 8                      b. 6                  c. 4                  d. 2

2. The ammonia used to form carbamoyl phosphate come directly only from
   1. Gln and Glu
   2. Gln and Ala
   3. Glu and Ala
   4. Ala

3. Succinate is produced in the glyoxylate cycle by the action of the enzyme
   1. citrate synthase                       c. aconitase
   2. isocitrate lyase                        d. malate synthase

4. The fatty acid most commonly made by animal cells is    
   1. myristic                                             c. stearic
   2. lauric                                       d. palmitic

Answer 1

Sol.

1. TheThe number of electrons generated in one glyoxylate cycle is 8

Therefore option a is correct.

2. ammonia used to form carbamoyl phosphate come directly only from Gln and Ala

Therefore option b is correct.

3.Succinate is produced in the glyoxylate cycle by the action of the enzyme is isocitrate lyase.

The glyoxylate cycle allow plant and some microorganisms to grow on acetate because the cycle bypasses the decarboxylation steps of the citric acid cycle. The enzymes that permit the conversion of acetate into succinate-isocitrate. In plants, these reactions take place in organelles called glyoxysomes.

Therefore option b is correct.

4.The fatty acid most commonly made by animal cells is palmitic acis becauseI Inanimals palmitic acid makes up as much as 30 percent of body fat.

Therefore option d is correct.