Aerobic Respiration Trivia Quiz

1. How many carbon atoms make up 1 molecule of glucose?

3

4

5

6

Glucose is a simple sugar with the molecular formula C6H12O6. This means that each molecule of glucose contains 6 carbon atoms. Therefore, the correct answer is 6.

Explanation

Glucose is a simple sugar with the molecular formula C6H12O6. This means that each molecule of glucose contains 6 carbon atoms. Therefore, the correct answer is 6.

2. All of the following are products of cellular respiration except:

Carbon dioxide

Water

Adenosine triphosphate

Glucose

Glucose is a reactant in the chemical equation for cellular respiration.

Explanation

Glucose is a reactant in the chemical equation for cellular respiration.

3. Glycolysis is an anaerobic process

True

False

Glycolysis is indeed an anaerobic process. It is the first step in cellular respiration, where glucose is broken down into pyruvate molecules. This process occurs in the cytoplasm of cells and does not require oxygen. In the absence of oxygen, pyruvate can then undergo fermentation to produce energy in the form of ATP. Therefore, it is correct to say that glycolysis is an anaerobic process.

Explanation

Glycolysis is indeed an anaerobic process. It is the first step in cellular respiration, where glucose is broken down into pyruvate molecules. This process occurs in the cytoplasm of cells and does not require oxygen. In the absence of oxygen, pyruvate can then undergo fermentation to produce energy in the form of ATP. Therefore, it is correct to say that glycolysis is an anaerobic process.

4. Oxygen plays a vital role in the electron transport chain because it is the ___________________ electron acceptor.

Oxygen plays a vital role in the electron transport chain because it is the final electron acceptor. In the electron transport chain, electrons are passed along a series of protein complexes and coenzymes, releasing energy. This energy is used to pump protons across the inner mitochondrial membrane, creating a proton gradient. Oxygen is the final acceptor of these electrons, combining with protons to form water. This process is essential for the production of ATP, the main energy currency of cells. Without oxygen as the final electron acceptor, the electron transport chain would be unable to continue, leading to a halt in ATP production.

Explanation

Oxygen plays a vital role in the electron transport chain because it is the final electron acceptor. In the electron transport chain, electrons are passed along a series of protein complexes and coenzymes, releasing energy. This energy is used to pump protons across the inner mitochondrial membrane, creating a proton gradient. Oxygen is the final acceptor of these electrons, combining with protons to form water. This process is essential for the production of ATP, the main energy currency of cells. Without oxygen as the final electron acceptor, the electron transport chain would be unable to continue, leading to a halt in ATP production.

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5. In order to produce a molecule of Adenosine Triphosphate, oxygen must be present.

True

False

Adenosine Triphosphate (ATP) is a product of cellular respiration. There are two forms of respiration; aerobic (when oxygen is present) and anaerobic (when oxygen is not present).
AER (think air...air contains oxygen)
AN (means not)...so....NOT AER means no oxygen

Explanation

Adenosine Triphosphate (ATP) is a product of cellular respiration. There are two forms of respiration; aerobic (when oxygen is present) and anaerobic (when oxygen is not present).
AER (think air...air contains oxygen)
AN (means not)...so....NOT AER means no oxygen

6. The kreb cycle is where most of the ATP in aerobic respiration is formed?

True

False

only 1 ATP IS FORMED

Explanation

only 1 ATP IS FORMED

7. Look at figure 1 on page 59: Where are the proteins that make up the electron transport chain located?

Inner membrane

Outer membrane

Matrix

Intermembrane space

The proteins that make up the electron transport chain are located in the inner membrane. This is because the inner membrane of the mitochondria is where the majority of cellular respiration takes place, including the electron transport chain. The inner membrane is highly folded, forming structures called cristae, which provide a large surface area for the proteins involved in the electron transport chain to carry out their functions.

Explanation

The proteins that make up the electron transport chain are located in the inner membrane. This is because the inner membrane of the mitochondria is where the majority of cellular respiration takes place, including the electron transport chain. The inner membrane is highly folded, forming structures called cristae, which provide a large surface area for the proteins involved in the electron transport chain to carry out their functions.

8. Which of the following regarding glycolysis are true:

It occurs in the matrix of the mitochondria

It occurs in the cytoplasm of the cell

It does not happen inside of the mitochondria

4 net ATP's are produced

4 ATP's are produced

Glucose is broken down into two 3 carbon sugars

Glucose is broken down into three 2 carbon sugars

2 NADH molecules are produced

Glycolysis is a metabolic pathway that occurs in the cytoplasm of the cell, not in the matrix of the mitochondria. It is the first step in cellular respiration and breaks down glucose into two 3 carbon sugars called pyruvate. During glycolysis, 4 ATP molecules are produced, but 2 ATP molecules are used in the process, resulting in a net production of 2 ATPs. Additionally, 2 NADH molecules are produced as a result of glycolysis.

Explanation

Glycolysis is a metabolic pathway that occurs in the cytoplasm of the cell, not in the matrix of the mitochondria. It is the first step in cellular respiration and breaks down glucose into two 3 carbon sugars called pyruvate. During glycolysis, 4 ATP molecules are produced, but 2 ATP molecules are used in the process, resulting in a net production of 2 ATPs. Additionally, 2 NADH molecules are produced as a result of glycolysis.

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9. When oxygen is present, a pyruate (pyruvic acid) enters the second stage of aerobic respiration, which is the formation of Acetyl coenzyme A. Which of the following is true about that process?

Carbon dioxide is a product

Oxygen is a reactant

2 more NADH's are formed

Acetyl coenzyme A is a 3 carbon sugar

Acetyl coenzyme A is a 2 carbon sugar

In the second stage of aerobic respiration, pyruvate is converted into Acetyl coenzyme A. This process involves the release of carbon dioxide as a byproduct. Additionally, two more molecules of NADH are formed during this process. Acetyl coenzyme A is a molecule consisting of two carbon atoms, making it a 2 carbon sugar.

Explanation

In the second stage of aerobic respiration, pyruvate is converted into Acetyl coenzyme A. This process involves the release of carbon dioxide as a byproduct. Additionally, two more molecules of NADH are formed during this process. Acetyl coenzyme A is a molecule consisting of two carbon atoms, making it a 2 carbon sugar.

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