This quiz contains a mix of SL and HL questions

Q1-5. A student carried out an experiment to find out the rate of respiration of insect larvae at 30 0C.  When writing up the experiment he forgot to label the diagram.

lava respiration experiment full diagram

1. Which of the following are the correct labels for parts 1 to 4?

  1 2 3 4
A manometer Wire basket 3 way tap Insect larvae
B 3 way tap Wire basket Potassium hydroxide manometer
C 3 way tap Wire basket water manometer
D 3 way tap Wire basket containing larvae Potassium hydroxide manometer
2. The function of the rolled-up filter paper is to ...
  • A. increase the surface area for absorption of carbon dioxide
  • B. increase the surface area for the absorption of oxygen
  • C. decrease the surface area for the absorption of carbon dioxide
  • D. increase the surface area for the release of oxygen.

3. A student does four tasks when setting up the respirometer:

I. Measures the level of fluid in the manometer
II. Opens the three way tap and fixes the apparatus together
III. Leaves the apparatus in the water bath for 15 minutes
IV. Closes the three way tap
 

Which is the correct order of tasks?

  • A. I then II then III then IV
  • B. II then III then IV then I
  • C. III then II then I then IV
  • D. II then I then III then IV
4. At the end of 15 minutes the level of the fluid in side B of the manometer is higher than side A.

This shows that ...

  • A. the organisms are respiring and using up carbon dioxide
  • B. the organisms are respiring and releasing oxygen
  • C. the organisms are respiring and using up oxygen
  • D. the organisms are respiring and releasing carbon dioxide
5. The experiment is repeated at 35 0C for 15 minutes and the fluid in the manometer does not move. What should the student check?
  • A. That the three-way tap is closed
  • B. That the bungs fit tightly in the tubes
  • C. That the organisms are still alive
  • D. All of the above

6. The image below is of an organelle:

organelle image

Which of the following processes does not occur in the above organelle?

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  • A. Decarboxylation of pyruvate and addition of coenzyme A
  • B. Conversion of pyruvate to lactate
  • C. Formation of citrate from oxaloacetate
  • D. Chemiosmosis  
7. What is the role of reduced NAD during cell respiration?
  • A. Accepts electrons and becomes oxidized
  • B. Donates electrons to the first carrier in the electron transport chain
  • C. Acts as a final electron acceptor in aerobic respiration
  • D. Combines with acetyl groups to form acetyl-CoA

8. Which of the 3 statements below happens during chemiosmosis?

I. ATP synthase moving protons against their concentration gradient
II. Oxidative phosphorylation
III. Continuous flow of electrons through peripheral membrane proteins
  • A. II only
  • B. I and II only
  • C. I and III only
  • D. I, II, and III

9. Which of the following is correct with regards to lipids and carbohydrates as substrates in cellular respiration?

I. Carbohydrates undergo glycolysis and anaerobic respiration, while lipids do not.
II. Carbohydrates have less oxygen and more oxidizable hydrogen compared to lipids
III. Lipids produce more metabolic water when oxidized compared to carbohydrates
IV. Carbohydrates cause greater osmotic shifts in cells compared to lipids
  • A. I and III only
  • B. II, III and IV only
  • C. I, II, and IV only
  • D. I, III, and IV

10.  Which option shows the correct net products for one glucose molecule during the Krebs cycle?

  Carbon dioxide ATP Reduced NAD Reduced FAD
A 2 1 3 1
B 4 2 4 2
C 4 2 6 2
D 0 2 2 0