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WorksheetsRespiration Basics
Total questions: 15
Worksheet time: 8mins
What is the primary purpose of cellular respiration?
To synthesize carbohydrates
To generate ATP
To regulate body temperature
To produce oxygen
Name the three main stages of cellular respiration.
Krebs Cycle
Fermentation
Photosynthesis
Glycolysis, Citric Acid Cycle, Oxidative Phosphorylation
Which organelle is responsible for the majority of ATP production in cellular respiration?
Nucleus
Endoplasmic reticulum
Golgi apparatus
Mitochondria
What are the reactants of cellular respiration?
Glucose and oxygen
Starch and lipids
ATP and NADH
Water and carbon dioxide
What are the products of glycolysis?
2 ATP, 2 NADH, 2 Pyruvate
1 ATP, 3 NADH, 2 Pyruvate
3 ATP, 1 NADH, 3 Pyruvate
4 ATP, 2 NADH, 1 Pyruvate
Where does the Krebs cycle take place in eukaryotic cells?
nucleus
mitochondria
endoplasmic reticulum
cytoplasm
What is the final electron acceptor in the electron transport chain?
Oxygen
Nitrogen
Hydrogen peroxide
Carbon dioxide
How many ATP molecules are produced from one molecule of glucose during cellular respiration?
30-32 ATP molecules
25-28 ATP molecules
40-42 ATP molecules
36-38 ATP molecules
What is the role of oxygen in cellular respiration?
Oxygen acts as the final electron acceptor in cellular respiration.
Oxygen is used to produce carbon dioxide in cellular respiration.
Oxygen is only needed in photosynthesis, not cellular respiration.
Oxygen is responsible for breaking down glucose in cellular respiration.
Explain the difference between aerobic and anaerobic respiration.
Aerobic respiration occurs in plants, anaerobic respiration occurs in animals.
Aerobic respiration produces more ATP than anaerobic respiration.
Aerobic respiration requires oxygen, anaerobic respiration does not.
Aerobic respiration is faster than anaerobic respiration.
What is the net gain of ATP molecules in glycolysis?
5 ATP
4 ATP
3 ATP
2 ATP
What is the purpose of fermentation in cellular respiration?
Generate carbon dioxide
Produce ATP directly
Convert glucose to pyruvate
Regenerate NAD+ from NADH
How does cellular respiration contribute to the carbon cycle?
Cellular respiration contributes to the carbon cycle by releasing carbon dioxide into the atmosphere, which is then used by photosynthetic organisms to produce glucose.
Cellular respiration has no impact on the carbon cycle
Cellular respiration converts carbon dioxide into oxygen
Cellular respiration absorbs carbon dioxide from the atmosphere
What is the overall chemical equation for cellular respiration?
C6H12O6 + 6O2 -> 6CO2 + 6H2O + ATP
6CO2 + 6H2O -> C6H12O6 + 6O2 + ATP
H2O + CO2 -> C6H12O6 + 6O2
C6H12O6 + 6O2 -> 6CO2 + 6H2O + ADP
Discuss the importance of cellular respiration in sustaining life.
Cellular respiration has no role in providing energy to cells.
Cellular respiration is only needed for plants, not animals.
Cellular respiration is only important for non-living organisms.
Cellular respiration is crucial for providing energy to cells, which is essential for sustaining life.
