How Much Do You Know About Cellular Respiration?

Cellular Respiration Quiz!

Cellular Respiration
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The energy required to power living cells comes from the sun. Plants capture this energy and convert it to organic molecules. Animals in turn, can gain this energy by eating plants or other animals. The energy that powers our cells is obtained from the foods we eat.

The most efficient way for cells to harvest energy stored in food is through cellular respiration. Glucose, derived from food, is broken down during cellular respiration to provide energy in the form of ATP and heat. Cellular respiration has three main stages: glycolysis, the citric acid cycle, and electron transport.

In glycolysis, glucose is split into two molecules. This process occurs in the cell's cytoplasm. The next stage of cellular respiration, the citric acid cycle, occurs in the matrix of eukaryotic cell mitochondria. In this stage, two ATP molecules along with high energy molecules (NADH and FADH2) are produced. NADH and FADH2 carry electrons on to the electron transport system. In the electron transport stage, ATP is produced by oxidative phosphorylation. In oxidative phosphorylation, enzymes oxidize nutrients resulting in the release of energy. This energy is use to convert ADP to ATP. Electron transport also occurs in mitochondria.

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

2. Glucose and _______ are consumed during cellular respiration.

3. Which is not a product of cellular respiration?

4. In the presence of oxygen, the first stage of cellular respiration is ______ .

5. In glycolysis, each glucose molecule is broken down into 2 molecules of _____ .

6. Without oxygen, glycolysis allows cells to make small amounts of ATP through _____ .

7. Pyruvate molecules are converted to _____ molecules to be used in the citric acid cycle.

8. In a eukaryotic cell, most ATP is produced during which process?

9. What is the chemical equation for the process of cellular respiration?

10. A eukaryotic cell can yield a net total of ____ ATP molecules per glucose molecule.

How Much Do You Know About Cellular Respiration?

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Wow! You are a cellular respiration whiz. It is evident that you really put in the time and effort to understand cellular respiration. You are ready for additional challenging information on other cellular processes such as photosynthesis, DNA replication, DNA transcription, protein synthesis, as well as mitosis and meiosis.

For more fascinating informatin on cells, see the Different Types of Body Cells, 10 Facts About Cells, Why Some Cells Commit Suicide, and How Cells Move.

How Much Do You Know About Cellular Respiration?

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Well done! You've done well but there is still room for improvement. To sure up any gaps in your knowledge of cellular respiration, study up on glycolysis, the Citric Acid Cycle, and mitochondria.

Continue your investigation into the cell and cellular processes by learning more about the differences between plant and animal cells, photosynthesis, cell organelles, diffusion and osmosis, and mitosis and meiosis.

How Much Do You Know About Cellular Respiration?

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Cheer up, it's okay. You didn't do as well as you hoped, but you can take this opportunity to delve deeper into cellular respiration. To increase your knowledge of this subject, study up on glycolysis, the Citric Acid Cycle, and mitochondria.

Don't stop there. The cell is fascinating. Discover the parts of a cell, the differences between plant and animal cells, the different types of cells in the body, how cells move, and how cells reproduce.