What is meant by aerobic respiration?
Aerobic respiration takes place in two stages - Leaving Cert Biology - Question a - 2012
Question a
What is meant by aerobic respiration?
Aerobic respiration takes place in two stages.
1. Where in a cell does stage 1 occur?
2. Where in a cell does stage 2 occ... show full transcript
Worked Solution & Example Answer:What is meant by aerobic respiration?
Aerobic respiration takes place in two stages - Leaving Cert Biology - Question a - 2012
Step 1
What is meant by aerobic respiration?
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Aerobic respiration is defined as the breakdown of food to produce energy in the presence of oxygen. This process is vital as it generates usable energy for cellular functions.
Step 2
1. Where in a cell does stage 1 occur?
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Stage 1 of aerobic respiration occurs in the cytoplasm of the cell.
Step 3
2. Where in a cell does stage 2 occur?
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Stage 2 of aerobic respiration takes place in the mitochondria.
Step 4
Which type of respiration, aerobic or anaerobic, produces more energy?
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Aerobic respiration produces more energy compared to anaerobic respiration. This is because aerobic respiration fully oxidizes glucose, yielding more ATP.
Step 5
Draw a labelled diagram showing how alcohol may be produced in the laboratory.
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
A labelled diagram should include the following components:
A container
A liquid (glucose solution)
Oil or an airlock to restrict oxygen access.
Labels required will include: Glucose, Yeast, Oil or Airlock.
Step 6
1. Name another substance that is produced during the fermentation process.
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Carbon dioxide (CO2) is another substance produced during the fermentation process.
Step 7
2. How would you detect this other substance?
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
You can detect carbon dioxide by observing bubbles in the liquid, which indicate gas production.
Step 8
3. How would you know when fermentation had finished?
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Fermentation is concluded when bubbling ceases, indicating that gas production has stopped.
Join the Leaving Cert students using SimpleStudy...
