32 Questions
Which process involves the breakdown of glycogen in the liver and muscles to release glucose?
Glycogenolysis
What is the purpose of glycogenolysis in the liver?
To raise blood sugar levels
What is the main energy source used by muscles during strenuous activity?
Glycogen
Which process involves the conversion of glucose into fatty acids?
Lipogenesis
What happens to fatty acids that are not needed for immediate energy production?
They are stored as triglycerides
What process releases fatty acids from triglycerides?
Lipolysis
What are ketone bodies used for when energy is needed?
Brain function
Which organelle is responsible for the production of ketone bodies?
Mitochondria
What is the main purpose of the Electron Transport Chain (ETC)?
To produce ATP
Which membrane of the mitochondria is the ETC located in?
Inner membrane
What is the final electron acceptor in the ETC?
Oxygen
What is the role of the H+ gradient created by the ETC?
To drive the production of ATP
Which parts of the ETC accept/donate electrons?
I, II, III, IV, Q, and c
What is the function of ATP Synthase?
To synthesize ATP
Where does the ETC pump H+ during electron movement?
Intermembrane space
What is the purpose of the H+ movement back out of the intermembrane space?
To drive the production of ATP
Which one of the following is an example of an anabolic pathway?
Fatty acid synthesis
Which one of the following is an example of a catabolic pathway?
Glycolysis
Which one of the following is the purpose of gluconeogenesis?
To synthesize glucose from non-carbohydrate sources
Which one of the following is the product of lipolysis?
Fatty acids
Under aerobic conditions, glycolysis produces ATP and
Pyruvate
Which one of the following describes the overall set-up and working of the ETC?
The ETC is a series of protein complexes embedded in the inner mitochondrial membrane that transfer electrons and generate ATP
Which one of the following is a component of ATP structure?
Adenine, ribose, and phosphate
Which process converts glucose into two pyruvate molecules in the cytosol?
Glycolysis
What is the purpose of glycolysis?
To produce energy in the form of ATP and NADH
Under aerobic conditions, what happens to pyruvate after glycolysis?
It is converted to acetyl CoA
Under anaerobic conditions, what happens to pyruvate after glycolysis?
It converts to lactate
What is the main site of gluconeogenesis?
Liver
What are the substrates for gluconeogenesis?
Certain amino acids, lactate, and glycerol
What is the purpose of the pentose phosphate shunt?
To produce various 5-carbon sugars and NADPH
What is the product of lipogenesis?
Fatty acids to triglycerides
What are the steps in fatty acid synthesis?
Acetyl CoA + ATP + NADPH
Test your knowledge of cellular metabolism and energy production with this quiz. Learn about the breakdown of glycogen, glycolysis, the citric acid cycle, and the electron transport chain. Discover how ATP, NADH, and FADH2 play important roles in these processes. Challenge yourself to understand the conversion of glucose, pyruvate, and fatty acids into energy-rich molecules.
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