#1
Which enzyme is responsible for breaking down glycogen into glucose?
Glycogen phosphorylase
ExplanationGlycogen phosphorylase breaks down glycogen into glucose.
#2
What is the primary role of insulin in carbohydrate metabolism?
To convert glucose into glycogen
ExplanationInsulin's primary role is converting glucose into glycogen.
#3
Which organ primarily stores glycogen in the body?
Liver
ExplanationThe liver primarily stores glycogen in the body.
#4
What is the primary storage form of glucose in animals?
Glycogen
ExplanationGlycogen is the primary storage form of glucose in animals.
#5
Which enzyme catalyzes the conversion of glucose-6-phosphate to glucose?
Glucose-6-phosphatase
ExplanationGlucose-6-phosphatase catalyzes the conversion of glucose-6-phosphate to glucose.
#6
Which hormone is responsible for stimulating glycogen breakdown in the liver?
Glucagon
ExplanationGlucagon stimulates glycogen breakdown in the liver.
#7
What is the process by which glucose is converted into pyruvate called?
Glycolysis
ExplanationThe process is called Glycolysis.
#8
What is the main source of glucose during fasting periods?
Glycogen stores
ExplanationGlycogen stores are the main source of glucose during fasting.
#9
Which hormone inhibits glycogen synthesis and promotes gluconeogenesis?
Cortisol
ExplanationCortisol inhibits glycogen synthesis and promotes gluconeogenesis.
#10
What is the process of converting non-carbohydrate sources into glucose called?
Gluconeogenesis
ExplanationThe process is called Gluconeogenesis.
#11
Which hormone stimulates glucose uptake in muscle and adipose tissue?
Insulin
ExplanationInsulin stimulates glucose uptake in muscle and adipose tissue.
#12
Which hormone promotes glucose uptake by cells?
Insulin
ExplanationInsulin promotes glucose uptake by cells.
#13
What is the end product of glycolysis under anaerobic conditions in mammalian cells?
Lactic acid
ExplanationLactic acid is the end product under anaerobic conditions.
#14
Which enzyme catalyzes the rate-limiting step of glycolysis?
Phosphofructokinase-1
ExplanationPhosphofructokinase-1 catalyzes the rate-limiting step of glycolysis.
#15
How does glucagon affect blood glucose levels?
Increases blood glucose levels
ExplanationGlucagon increases blood glucose levels.
#16
What is the primary energy currency of cells?
ATP
ExplanationATP is the primary energy currency of cells.
#17
Which enzyme is involved in the conversion of pyruvate to acetyl-CoA?
Pyruvate dehydrogenase
ExplanationPyruvate dehydrogenase is involved in the conversion of pyruvate to acetyl-CoA.