Four Stages Of Cellular Respiration! Trivia Quiz

1. Which part of a eukaryotic cell is involved in cellular respiration?

Endoplasmic Reticulum

Vacuole

Cytoplasm

Mitochondria

Nucleus

Did you get the answer incorrect? Hint - Cellular respiration occurs in a membrane organelle commonly know as 'the powerhouse of the cell'.

Explanation

Did you get the answer incorrect? Hint - Cellular respiration occurs in a membrane organelle commonly know as 'the powerhouse of the cell'.

2. At the end of cellular respiration, a cell can yield a net total of 38 ATP molecules per glucose molecule.

True

False

Did you get the answer incorrect? Hint - Glycolysis is a step that consumes and produces ATP whilst the remaining two steps produce ATP. Was this considered in your calculation?

Explanation

Did you get the answer incorrect? Hint - Glycolysis is a step that consumes and produces ATP whilst the remaining two steps produce ATP. Was this considered in your calculation?

3. What type of metabolic reaction involves the:

Loss of electrons

Gain of electrons

Submit

4. Which isn't an end product of glycolysis?

2 Carbon Dioxide Molecules

2 ATP

2 Pyruvate Molecules

2 NADH

Did you get the answer incorrect? Hint - The picture below shows an overview of Glycolysis. Also refer to the 'Glycolysis' page on the website.

Explanation

Did you get the answer incorrect? Hint - The picture below shows an overview of Glycolysis. Also refer to the 'Glycolysis' page on the website.

5. What is the basic chemical formula for cellular respiration?

C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP

C6H12O6 + 6CO2 → 6H2O + 6O2 + ATP

6H2O + 6O2 + ATP → 6CO2 + C6H12O6

Did you get the answer incorrect? Hint - Cellular respiration refers to what cells do to break up sugars. Also refer to the 'Cellular Respiration' page on the website.

Explanation

Did you get the answer incorrect? Hint - Cellular respiration refers to what cells do to break up sugars. Also refer to the 'Cellular Respiration' page on the website.

6. Which of the following metabolic processes generates the most ATP?

Oxidative Phosphorylation

Glycolysis

Tricarboxylic Acid Cycle

Oxidation

Reduction

Did you get the answer incorrect? Hint - What are the three metabolic processes in cellular respiration and of these which ones consume, produce ATP.

Explanation

Did you get the answer incorrect? Hint - What are the three metabolic processes in cellular respiration and of these which ones consume, produce ATP.

7. The tricarboxylic acid cycle occurs within the mitochondria of a cell. Which best describes the site of the tricarboxylic acid cycle inside the mitochondria?

Outer Mitochondrial Membrane

Inner Mitochondrial Membrane

Mitochondrial Matrix

Did you get the answer incorrect? Hint - Look at the picture below. Also refer to the 'Tricarboxylic Acid Cycle' page of the website.

Explanation

Did you get the answer incorrect? Hint - Look at the picture below. Also refer to the 'Tricarboxylic Acid Cycle' page of the website.

8. Most ATP produced by oxidative phosphorylation is generated from the oxidation of NADH and ____________.

Most ATP produced by oxidative phosphorylation is generated from the oxidation of NADH and FADH2. During oxidative phosphorylation, electrons from NADH and FADH2 are transferred through the electron transport chain, which generates a proton gradient across the inner mitochondrial membrane. This proton gradient is then used by ATP synthase to produce ATP. NADH and FADH2 are both electron carriers that donate electrons to the electron transport chain, but NADH generates more ATP than FADH2 because it enters the electron transport chain at an earlier stage, resulting in more proton pumping and ATP synthesis.

Explanation

Most ATP produced by oxidative phosphorylation is generated from the oxidation of NADH and FADH2. During oxidative phosphorylation, electrons from NADH and FADH2 are transferred through the electron transport chain, which generates a proton gradient across the inner mitochondrial membrane. This proton gradient is then used by ATP synthase to produce ATP. NADH and FADH2 are both electron carriers that donate electrons to the electron transport chain, but NADH generates more ATP than FADH2 because it enters the electron transport chain at an earlier stage, resulting in more proton pumping and ATP synthesis.

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9. Upon entering the mitochondria, pyruvate is converted to _____________ to be used in the tricarboxylic acid cycle.

Did you get the answer incorrect? Hint - Refer to the 'Tricarboxylic Acid Cycle' page on the website.

Explanation

Did you get the answer incorrect? Hint - Refer to the 'Tricarboxylic Acid Cycle' page on the website.

Submit

10. What are the three main stages of cellular respiration?

Glycolysis, Oxidation and Tricarboxylic Acid Cycle.

Cellular Respiration, Oxidation and Reduction.

Glycolysis, Tricarboxylic Acid Cycle and Oxidative Phosphorylation.

Glycolysis, the Krebs Cycle, and Electron Transport Chain.

Did you get the answer incorrect? Hint - The first stage of cellular respiration sees the breakdown of glucose, the second stage sees pyruvic acid and NADH used to make ATP and stage 3 sees NADH and FADH2 oxidised forming an H+ electron. Also refer to the 'Cellular Respiration' page on the website.

Explanation

Did you get the answer incorrect? Hint - The first stage of cellular respiration sees the breakdown of glucose, the second stage sees pyruvic acid and NADH used to make ATP and stage 3 sees NADH and FADH2 oxidised forming an H+ electron. Also refer to the 'Cellular Respiration' page on the website.

Submit