Cellular Respiration For Sophomores

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| By Erick2r

Erick2r

Community Contributor

Quizzes Created: 1 | Total Attempts: 91

Questions: 5 | Attempts: 91 | Updated: Dec 1, 2023

1.

Where does Glycolysis take place?
- A.
  
  Inside the Mitochandria
- B.
  
  In the Membrane
- C.
  
  In the Cytosol
Correct Answer
C. In the Cytosol

Explanation
Glycolysis is a metabolic pathway that occurs in the cytosol of cells. It is the first step in cellular respiration and involves the breakdown of glucose into pyruvate. The cytosol is the fluid portion of the cell where many metabolic reactions take place. This is where glucose is converted into smaller molecules during glycolysis, generating energy in the form of ATP and NADH. Therefore, glycolysis occurs in the cytosol of cells.

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2.

Cellular Respiration requires Oxygen
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water. While oxygen is necessary for aerobic respiration, cells can also undergo anaerobic respiration, which does not require oxygen. Therefore, the statement that cellular respiration requires oxygen is false.

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3.

Glycolysis breaks glucose into 2 ______

Correct Answer
Pyruvate

Explanation
Glycolysis is the metabolic pathway that converts glucose into pyruvate. During glycolysis, glucose is broken down into two molecules of pyruvate through a series of enzymatic reactions. This process occurs in the cytoplasm of cells and is the first step in both aerobic and anaerobic respiration. Pyruvate is then further metabolized in various ways depending on the availability of oxygen and the energy needs of the cell.

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4
4.

Cellular Respiration (overall) makes ATP from glucose.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Cellular respiration is the process by which cells convert glucose into ATP, the main energy currency of the cell. During cellular respiration, glucose is broken down in a series of metabolic reactions, such as glycolysis, the Krebs cycle, and oxidative phosphorylation, to produce ATP. Therefore, the statement that cellular respiration makes ATP from glucose is true.

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5.

Electrons jumping down energy levels in the membrane is called _______________.

Correct Answer
Electron transport chain

Explanation
The process described in the question, where electrons move from higher to lower energy levels in the membrane, is known as the electron transport chain. This chain is a series of protein complexes located in the inner mitochondrial membrane that facilitate the transfer of electrons and the generation of ATP.

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4

Cellular Respiration For Sophomores

Where does Glycolysis take place?

Cellular Respiration requires Oxygen

Glycolysis breaks glucose into 2 ______

Cellular Respiration (overall) makes ATP from glucose.

Electrons jumping down energy levels in the membrane is called _______________.