Class 11 Biology · Chapter 6 · Test 4
Bioenergetics Part 4
24 MCQs This set covers the electron transport chain, chemiosmosis in mitochondria and the energy yield of aerobic and anaerobic respiration. It also covers other fuels for respiration, photorespiration, and C-4 and CAM photosynthesis.
24 questions · 20 min · 24 marks
Want to try first? Take the free Biology test: Biodiversity Part 1
Sample questions
The first 5 of 24. Try each one, then tap to see the answer.
Question 1
The electron transport chain of respiration is located in the
- AInner mitochondrial membrane
- BOuter membrane
- CCytosol
- DMatrix only
Show answerHide answer
Answer: A
It uses NADH and FADH2 as electron donors.
Question 2
Electrons from NADH are first taken up by
- ACoenzyme Q
- BCytochrome a
- COxygen
- DFerredoxin
Show answerHide answer
Answer: A
They then pass to cytochrome b and c and a.
Question 3
The final electron acceptor of the chain is
- AOxygen
- BWater
- CNAD+
- DCO2
Show answerHide answer
Answer: A
It combines with H+ to form water.
Question 4
H+ ions are pumped into the
- AIntermembrane space
- BMatrix
- CCytosol
- DNucleus
Show answerHide answer
Answer: A
This creates a gradient that stores potential energy.
Question 5
H+ ions return to the matrix through
- AATP synthase
- BRubisco
- CFerredoxin
- DCytochrome c
Show answerHide answer
Answer: A
Their flow drives ATP synthesis.
More tests in Bioenergetics
Practise with a free account
Save your scores, see which chapters need work, and keep a notebook of every question you got wrong.