Carbohydrate Metabolism and Hormonal Regulation Quiz

Test your knowledge on enzymes, hormones, and pathways in carbohydrate metabolism with 17 key questions. Dive into biochemistry now!

#1

Which enzyme is responsible for breaking down glycogen into glucose?

Amylase
Glycogen synthase
Glycogen phosphorylase
Glucagon
#2

What is the primary role of insulin in carbohydrate metabolism?

To decrease blood glucose levels
To increase blood glucose levels
To break down glycogen into glucose
To convert glucose into glycogen
#3

Which organ primarily stores glycogen in the body?

Liver
Pancreas
Kidney
Spleen
#4

What is the primary storage form of glucose in animals?

Glucose-6-phosphate
Fructose-6-phosphate
Glycogen
Glucose-1-phosphate
#5

Which enzyme catalyzes the conversion of glucose-6-phosphate to glucose?

Glucose-6-phosphatase
Hexokinase
Glucokinase
Phosphofructokinase-1
#6

Which hormone is responsible for stimulating glycogen breakdown in the liver?

Insulin
Glucagon
Cortisol
Epinephrine
#7

What is the process by which glucose is converted into pyruvate called?

Glycolysis
Gluconeogenesis
Krebs cycle
Glycogenesis
#8

What is the main source of glucose during fasting periods?

Dietary carbohydrates
Glycogen stores
Protein breakdown
Adipose tissue
#9

Which hormone inhibits glycogen synthesis and promotes gluconeogenesis?

Insulin
Glucagon
Cortisol
Thyroxine
#10

What is the process of converting non-carbohydrate sources into glucose called?

Glycolysis
Glycogenesis
Gluconeogenesis
Glycogenolysis
#11

Which hormone stimulates glucose uptake in muscle and adipose tissue?

Insulin
Glucagon
Epinephrine
Thyroid hormone
#12

Which hormone promotes glucose uptake by cells?

Insulin
Glucagon
Cortisol
Thyroxine
#13

What is the end product of glycolysis under anaerobic conditions in mammalian cells?

Lactic acid
Acetyl-CoA
Pyruvate
Ethanol
#14

Which enzyme catalyzes the rate-limiting step of glycolysis?

Hexokinase
Phosphofructokinase-1
Pyruvate kinase
Glucose-6-phosphatase
#15

How does glucagon affect blood glucose levels?

Increases blood glucose levels
Decreases blood glucose levels
Has no effect on blood glucose levels
Promotes glycogen synthesis
#16

What is the primary energy currency of cells?

Glucose
Glycogen
ATP
NADH
#17

Which enzyme is involved in the conversion of pyruvate to acetyl-CoA?

Pyruvate dehydrogenase
Pyruvate carboxylase
Phosphofructokinase
Hexokinase

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