CARBOHYDRATE QUIZ

Fructose diphosphate accumulation would

inhibit glycolysis and gluconeogenesis

inhibit glycolysis and stimulate gluconeogenesis

stimulate glycolysis and gluconeogenesis

stimulate glycolysis and inhibit gluconeogenesis

TRUE ANSWER : ?
YOUR ANSWER : ?

The hormones, glucagon and epinephrine, stimulate glycogen breakdown to G-6-P

indirectly, by first stimulating adenylate cyclase to make cAMP

directly, by binding to glycogen phosphorylase

using ATP as the phosphoryl donor

only in the liver

TRUE ANSWER : ?
YOUR ANSWER : ?

Citric acid accumulation would

both (b) and (c)

stimulate phosphofructokinase activity

inhibit phosphofructokinase activity

stimulate fructose 1,6 diphosphatase activity

TRUE ANSWER : ?
YOUR ANSWER : ?

The sugar which forms major component of nucleic acids is

maltose

ribose

galactose

mannose

TRUE ANSWER : ?
YOUR ANSWER : ?

Metabolic reactions that break down complex molecules into smaller compounds, thereby releasing usable energy for the cell, are best described as

catalytic

catabolic

photosynthetic

biosynthetic

TRUE ANSWER : ?
YOUR ANSWER : ?

a-amylose is similar to

the hydrophobic core

β-sheets

β-turned coils

α-helices

TRUE ANSWER : ?
YOUR ANSWER : ?

A catabolic intermediate which stimulates phosphofructokinase would stimulate

glycolysis

gluconeogenesis

none of these

glycogen synthesis

TRUE ANSWER : ?
YOUR ANSWER : ?

Insulin

stimulates gluconeogenesis and glycolysis

inhibits gluconeogenesis and glycolysis

inhibits gluconeogenesis and stimulates glycolysis

stimulates gluconeogenesis and inhibits glycolysis

TRUE ANSWER : ?
YOUR ANSWER : ?

The ultimate source of energy that sustains living systems is

carbon dioxide

sunlight

glucose

oxygen

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following would be considered a part of metabolism?

All of the above

Biosynthetic pathways that build DNA

The capture of light energy for use in making glucose

Catabolic pathways that break down complex carbohydrates

TRUE ANSWER : ?
YOUR ANSWER : ?