What is the primary energy source for cardiac muscle cells?

Cardiac Muscle Metabolism Quiz

Quiz
•
Science
•
University
•
Hard
Nema Soliman
FREE Resource
33 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fatty acids and glucose
Ketone bodies
Amino acids
Lactic acid
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the metabolism of cardiac muscle differ from skeletal muscle?
Cardiac muscle relies mainly on aerobic metabolism, while skeletal muscle can use both aerobic and anaerobic pathways.
Skeletal muscle has a higher reliance on fatty acids compared to cardiac muscle.
Cardiac muscle can only use anaerobic pathways, while skeletal muscle uses aerobic metabolism.
Cardiac muscle primarily uses anaerobic metabolism, while skeletal muscle relies on aerobic pathways.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does oxygen play in cardiac muscle metabolism?
Oxygen is crucial for aerobic metabolism in cardiac muscle, enabling efficient ATP production.
Oxygen is a waste product in cardiac muscle metabolism.
Oxygen is only needed during intense exercise in cardiac muscle.
Oxygen is primarily used for anaerobic metabolism in cardiac muscle.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the significance of fatty acids in cardiac energy production.
Fatty acids are primarily used for protein synthesis in the heart.
Fatty acids are essential for ATP production in the heart, supporting its energy needs.
Fatty acids have no role in energy production for cardiac cells.
Fatty acids are only important for muscle contraction, not for the heart.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of mitochondria in cardiac muscle cells?
To store genetic material for protein synthesis.
To facilitate the transport of oxygen in the blood.
The function of mitochondria in cardiac muscle cells is to produce ATP for energy and regulate calcium levels.
To produce hormones that regulate heart rate.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does ischemia affect cardiac muscle metabolism?
Ischemia enhances aerobic metabolism in cardiac muscle.
Ischemia impairs aerobic metabolism in cardiac muscle, leading to reliance on less efficient anaerobic pathways.
Ischemia increases the efficiency of aerobic pathways in cardiac muscle.
Ischemia has no effect on cardiac muscle metabolism.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the byproducts of anaerobic metabolism in cardiac tissue?
Lactate (lactic acid)
Acetyl-CoA
Carbon dioxide
Pyruvate
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