Cell Processes: What Do Cells Do Anyway?

What is the process called when no energy is used to move particles from an area of high concentration to low concentration?

• The process is called passive transport.

• The process is called active transport.

• The process is called facilitated diffusion.

• The process is called osmosis.

In the context of cell processes, the difference between active and passive transport is that active transport requires energy (ATP) to move molecules against their concentration gradient, whereas passive transport does not require energy and moves molecules along the gradient.

• Active transport requires energy to move molecules against the gradient while passive transport does not require energy and moves molecules along the gradient.

• Active transport moves molecules along the gradient while passive transport uses energy to move molecules against the gradient.

• Active transport only occurs in animal cells while passive transport only occurs in plant cells.

• Active transport is a random process while passive transport is selective.

Chloroplasts in plant cells are responsible for photosynthesis.

• They perform photosynthesis by converting sunlight into energy.

• They facilitate cellular respiration.

• They are involved in protein synthesis.

• They store genetic information.

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During photosynthesis, cells take in carbon dioxide and water to produce which two substances?

• glucose and oxygen

• glucose and water

• carbon dioxide and oxygen

• glucose and carbon dioxide

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True or False: Cellular respiration uses oxygen to break down glucose and release (make) ATP energy.

• True

• False

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What are the byproducts of ATP synthesis during cellular respiration?

HINT: What else is made in addition to ATP?

• The byproduct of ATP synthesis in cellular respiration is water (H2O) and carbon dioxide (CO2).

• The byproduct of ATP synthesis in cellular respiration is only oxygen (O2).

• It produces only carbon dioxide (CO2).

• It produces only water (H2O).

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Select the statement that explains the link between photosynthesis and cellular respiration.

• Photosynthesis stores energy in sugar molecules, which are later broken down by cellular respiration to release energy.

• They are identical processes.

• They occur in the same cells.

• Photosynthesis happens at night and cellular respiration during the day.

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Which organelle is primarily responsible for energy production in cells through cellular respiration?

• Ribosomes

• Chloroplasts

• Nucleus

• Mitochondria

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What is the main purpose of cellular respiration in living organisms?

• To convert glucose into ATP, the energy currency of the cell.

• To produce glucose from carbon dioxide and water.

• To synthesize proteins from amino acids.

• To store energy in the form of starch.

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Which of the following processes occurs in the chloroplasts of plant cells?

• Cellular respiration

• Photosynthesis

• DNA replication

• Protein synthesis

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