Worksheetscellular respiration
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Why is cellular respiration essential for living organisms?
a)
It converts sunlight into energy.
b)
It helps in the formation of proteins.
c)
It provides energy necessary for cellular functions.
d)
It allows organisms to produce glucose.
2.
Which of the following correctly describes the overall chemical equation for cellular respiration?
a)
Glucose + 6 Oxygen → 6 Carbon Dioxide + 6 Water + Energy
b)
Glucose + 2 Oxygen → 2 Carbon Dioxide + 2 Water + Energy
c)
Glucose + 3 Oxygen → 3 Carbon Dioxide + 3 Water + Energy
d)
Glucose + 4 Oxygen → 4 Carbon Dioxide + 4 Water + Energy
3.
What is the primary function of glycolysis in cellular respiration?
a)
To convert pyruvate into carbon dioxide
b)
To synthesize glucose from carbon dioxide
c)
To generate oxygen for the Krebs Cycle
d)
To produce ATP and NADH from glucose
4.
Which of the following stages of cellular respiration does not require oxygen?
a)
Electron Transport Chain
b)
Krebs Cycle
c)
Glycolysis
d)
All stages require oxygen
5.
Which statement about glycolysis is true?
a)
It occurs in the mitochondria and requires oxygen.
b)
It occurs only in aerobic conditions.
c)
It produces a net gain of 2 ATP and 2 NADH.
d)
It is the final stage of cellular respiration.
6.
Where does the Krebs Cycle take place within the cell?
a)
In the cytoplasm
b)
In the nucleus
c)
In the mitochondria
d)
In the cell membrane
7.
What is produced during each turn of the Krebs Cycle?
a)
1 NADH, 2 FADH₂, and 2 ATP
b)
3 NADH, 1 FADH₂, and 1 ATP
c)
1 NADH, 1 FADH₂, and 1 ATP
d)
2 NADH, 2 FADH₂, and 2 ATP
8.
What is the primary role of oxygen in cellular respiration?
a)
To act as the final electron acceptor in the Electron Transport Chain
b)
To produce glucose
c)
To generate carbon dioxide
d)
To facilitate glycolysis
9.
How many ATP molecules can the Electron Transport Chain produce per glucose molecule?
a)
2 ATP
b)
10 ATP
c)
38 ATP
d)
34 ATP
10.
What is the significance of the Electron Transport Chain in cellular respiration?
a)
It converts NADH into glucose.
b)
It is where glucose is broken down into pyruvate.
c)
It generates the majority of ATP during cellular respiration.
d)
It produces carbon dioxide as a waste product.
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