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WorksheetsTopic 10 Respiration
Total questions: 20
Worksheet time: 10mins
Why do animals need oxygen?
To get food for their bodies
To burn food for energy
To get rid of carbon dioxide
To protect themselves from predators
What are the products of aerobic respiration?
Carbon Dioxide and Energy
Lactic Acid
Water and Carbon Dioxide
Glycogen and Carbon Dioxide
What are the products of anaerobic respiration in a human cell?
Energy and Lactic Acid
Lactic Acid
Lactic Acid and Carbon Dioxide
Carbon Dioxide and Water
What are the products of anaerobic respiration in plants and yeast?
Lactic Acid and Carbon Dioxide
Carbon Dioxide and Energy
Ethanol and Energy
Ethanol and Carbon Dioxide
Which type of respiration releases more energy per gram of glucose?
Aerobic
Anaerobic
They both release the same amount
What is the chemical formula for glucose?
C6H12O6
C12H6O12
C6O12H6
6CH2O
Where is lactic acid principally broken down in the human body?
Muscles
Liver
Kidneys
Blood
What is the equation for aerobic respiration?
C6H12O6 + 6O2 --> 6CO2 + 6H2O
C6H12O6 + O2 --> CO2 + H2O
C6H12O6 + 6O2 --> CO2 + 6H2O
6C6H12O6 + 6O2 --> 6CO2 + 6H2O
Where in the body does respiration take place? Select the best answer.
The lungs
The muscles
All cells
The blood
What is the purpose of respiration? Select the best answer.
To release the chemical energy stored in glucose
To generate heat
To produce energy
To absorb oxygen by diffusion
The energy released in respiration is stored by creating which molecule?
Glucose
Lactic Acid
ATP
ADP
Where in a cell does aerobic respiration take place?
Cytoplasm
Ribosomes
Mitochondria
Nucleus
Chloroplasts
Why do mice have a faster rate of respiration than a hippo?
They have a larger SA:V ratio and need to release more heat energy to stay warm.
They need more energy because they move around more
They have a higher body temperature so they need to release more heat energy
They eat continuously and therefore have more glucose available for respiration
Why do athletes continue to breath heavily after exercise? Choose 2 answers.
They need O2 to break down lactic acid
They need more O2 for aerobic respiration
They have to remove excess CO2 from the blood
The muscle cells need to rebuild their stores of ATP
Which of these are the result of anaerobic respiration in a human? Choose 2 answers.
Oxygen Debt
Lactic Deficit
Lactic Acid
Excess Carbon Dioxide
Is respiration the same as breathing?
Yes
No
Which is a form of energy that can come from cellular respiration?
carbon dioxide
photosynthesis
oxygen
glucose
During heavy exercise when supply of oxygen to our muscles is insufficient food breakdown is by
anaerobic respiration
aerobic respiration
cellular respiration
