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Aerobic and anaerobic respiration 2024 Questions and Answers 100% Solved
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Aerobic and anaerobic respiration 2024
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Aerobic and anaerobic respiration 2024What is the word equation for respiration? - answer glucose + oxygen --> carbon
dioxide + water (+ ATP)
What is the chemical equation for respiration? - answerC6H12O6 + 6O2 --> 6CO2 +
6H2O
What do most plant and animal cells use during cellular respiration? - answer oxygen
What is the type of respiration that uses oxygen to release energy from glucose? -
answer aerobic respiration
What are the waste products of respiration? - answer water and carbon dioxide
Why is oxygen essential for life? - answer For respiration to take place (the breaking
down of nutrients)
Can ATP still be made under anaerobic conditions? - answer Yes
In animals, where does the oxygen needed for respiration come from? - answer the air
Where does the glucose needed for respiration come from (in humans)? - answerIt is
either consumed in the diet or broken down from glycogen stores in the liver
Where is carbon dioxide transported once it enters the blood? - answerto the lungs
where it is released into the air
What happens to the water that is not used by the body? - answerIt is excreted through
the kidneys (The kidney filters the blood that contains the water molecules)
What must glucose and oxygen be broken down into for energy to be released in the
body? - answercarbon dioxide and water
Is the release of ATP controlled? - answerYes, as it is a gradual process
What does the respiration process consist of? - answera series of chemical (enzymatic)
reactions - which occur over 4 stages
What are the 4 stages involved in respiration? - answer1)Glycolysis (in cytoplasm of
cell)
2)Link Reaction
3)Krebs Cycle (sometimes called TCA or Citric Acid Cycle)
, 4)Electron Transport Chain/Chemiosmosis
How many ATP molecules are there in a glucose molecule? - answer36-38
What happens in the first step of respiration? - answerthe breaking down of glucose -
this is known as "sugar splitting" (glycolysis)
Where does glycolysis happen? - answerin the cytoplasm
What are glucose molecules broken down into? - answerpyruvate molecules (a 3-
carbon molecule)
Does it take any input ATP to split glucose? - answerYes, a little bit is needed in the
beginning
How many ATP molecules are made in the process glycolysis? - answer2 net ATP
molecules
Where do the next three stages happen? - answerin the mitochondria
What happens to the pyruvate molecule made after glycolysis? - answerIt is broken
down and further converted
Name the three stages in which pyruvate is further broken down - answer1) Link
Reaction
2) Krebs Cycle
3) Electron Transport Chain
What are the final products from the last three steps in the respiration process? (3) -
answerThe final products (from 1 glucose molecule):
1) 36-38 ATP
2) 6 carbon dioxide molecules
3) 6 water molecules
What will happen if there is no oxygen is available for respiration? - answerATP can still
be made through anaerobic respiration (although ATP is produced in much smaller
amounts).
Give two examples of organisms that experience anaerobic respiration - answer1)
animals
2) yeast cells
How many ATP molecules are made in anaerobic respiration? - answer2 ATP
molecules (compared to 36-38 made by aerobic respiration)
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