Ketogenesis

Question 1

Ketone bodies are

Answer 1

Acetone
Acetoacetate
Beta hydroxy butyrate

Question 2

Fate of ketone bodies

Answer 2

Acetone exhaled
Acetoacetate beta hydroxy butyrate : extrahepatic tissues
And oxidised to acetyl co A

Question 3

Acetyl co A derived from

Answer 3

Fatty acids
Pyruvate
Oxidation
Breakdown of aminoacids into ketone bodies

Question 4

Transporter lipid

Answer 4

Dolichols

Question 5

Extracellular and intracellular messengers

Answer 5

Eicosonoids and phosphatidylinositol derivatives

Question 6

Fatty acids esterified with glycerol to form

Answer 6

Triacyl glycerol

Question 7

Fatty acids are synthesised from

Answer 7

Acetyl co A

Question 8

Prerequisite of fatty acid synthesis

Answer 8

Acetyl co A
ATP
NADPH

Question 9

NADPH supplies

Answer 9

H atom

Question 10

Fatty acid synthesis steps

Answer 10

1 formation of acetyl coA and NADPH
2 formation of malonyl co A from acetyl co A
3 reaction of fatty acid synthase complex

Question 11

Acetyl co A transferred to cytoplasm as

Answer 11

Citrate

Question 12

Acetyl co A condensed with oxaloacetate by

Answer 12

Citrate synthase

Question 13

Citrate cleaved to acetyl coA by

Answer 13

Citrate lyase

Question 14

Malate used to produce NADPH in cytosol by

Answer 14

Malic enzyme

Question 15

Major source of acetyl co A in ruminants

Answer 15

Acetate

Question 16

Acetyl coA to malonyl co A

Answer 16

Acetyl co A carboxylase

Question 17

Prosthetic group in acetyl co A carboxylase

Answer 17

Biotin

Question 18

Rate limiting step in the synthesis of fatty acids

Answer 18

Malonyl coA synthesis