Chap 6: Quiz Glycolysis, Gluconeogenesis and Pyruvate

Question 1

Basic formula for carbohydrates

Answer 1

Cx(H2O)x

Question 2

Aldehydes vs Ketones

Answer 2

Aldoses vs. Ketoses

Question 3

Glycosidic Bonds

Answer 3

linkages that join monosaccharides to each other

(can occur through amines or hydroxyls)

Question 4

Metabolic Pathway

Answer 4

the process when a small molecule (metabolite) is transformed into a different molecule through a series of enzymatic reactions

Question 5

Glycolysis

Answer 5

One molecule of glucose (six carbons) is catabolized into two pyruvates (three carbons)

Question 6

Glycolysis provides energy

Answer 6

Two ATP and two NADH/H+ generated

Question 7

Gluconeogenesis

Answer 7

Pyruvate into glucose (as well as lactate, glycerol and other a.a.)

Requires 6 ATP

Question 8

Regulation of gluconeogenesis

Answer 8

Occurs through compartmentalization

Allosteric regulation

Phosphorylation

Changes in gene expression

Question 9

When glycolysis proceeds

Answer 9

gluconeogenesis is inhibited

Question 10

When gluconeogenesis process

Answer 10

Glycolysis is inhibited

Question 11

Glycolysis regulation Steps

Answer 11

1 - Hexokinase

3 - Phosphofructokinase

10 - Pyruvate Kinase

Question 12

Gluconeogenesis is regulated by

Answer 12

Acetyl-CoA (during conversion of pyruvate to PEP)

AMP and Fructose-2,6-6P

Glucose-6-P

(And Controlled by levels of substrate)

Question 13

How many fates of pyruvate are there

Answer 13

5

Question 14

Pyruvate reduction (lactate dehydrogenase) makes

Answer 14

Lactate (anaerobically)

Question 15

Pyruvate carboxylation (pyruvate carboxylase) makes

Answer 15

Oxaloacetate

Question 16

Pyruvate decarboxylation (pyruvate decarboxylase) makes

Answer 16

Acetaldehyde (can lead to alcoholic fermentation)

Question 17

Pyruvate transamination (alanine transaminase) makes

Answer 17

Alanine

Question 18

Pyruvate decarboxylation (pyruvate dehydrogenase) makes

Answer 18

Acetyl-CoA (aerobic)