Cell Structure and Function

Which of the following best describes the role of the nucleus in a cell?

• It stores the cell's DNA and coordinates the cell's activities, including growth, intermediary metabolism, protein synthesis, and reproduction (cell division).

• It helps in the digestion of cellular waste.

• It is the primary site for energy production.

• It assists in the movement of the cell.

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DOK Level 2: Skill/Concept

Explain how the cell membrane contributes to cell homeostasis.

• By allowing all substances to pass freely in and out of the cell.

• By selectively allowing substances to pass through, maintaining the balance of imolecules

• By preventing any substances from entering or leaving the cell.

• By producing enzymes that break down nutrients.

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DOK Level 3: Strategic Thinking

What is the primary function of chloroplasts in plant cells?

• To break down sugar molecules to release energy.

• To conduct photosynthesis, converting solar energy into chemical energy stored in glucose.

• To store genetic information.

• To protect the cell from external harm.

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DOK Level 2: Skill/Concept

Identify a key difference between plant and animal cells.

• Animal cells have a cell wall, while plant cells do not.

• Plant cells have chloroplasts, while animal cells do not.

• Animal cells contain mitochondria, while plant cells do not.

• Plant cells are typically smaller than animal cells.

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DOK Level 2: Skill/Concept

During a biology class, Charlotte uses a microscope to examine a sample. What evidence can she gather to decide if her sample is living or non-living?

• It can show whether an object in the sample is capable of movement.

• It can reveal the presence of cells, which are the basic unit of life, in the sample.

• It can determine the chemical composition of objects in the sample.

• It can measure the temperature of objects in the sample.

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DOK Level 2: Skill/Concept

Why is the cell considered the basic unit of life?

• Because it can independently perform all necessary life processes.

• Because it is the smallest thing visible to the naked eye.

• Because it forms the structural components of all matter.

• Because it can exist independently of other cells.

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DOK Level 2: Skill/Concept

During a biology class, David observes a plant under a microscope and wonders how the cell wall contributes to the plant cell's function. How does he conclude its role?

• It aids in the process of photosynthesis by capturing light energy.

• It provides structural support and protection, helping to maintain the shape of the cell.

• It regulates the entry and exit of substances in and out of the cell.

• It stores food and other nutrients for the cell.

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DOK Level 3: Strategic Thinking

Please label the cell membrane of the cell pictured.

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NGSS.MS-LS1-2

Click on the dot that best indicates the...Chloroplast

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NGSS.MS-LS1-2

NGSS.MS-LS1-6

Which organelle stores water for photosynthesis?

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NGSS.MS-LS1-2

NGSS.MS-LS1-6