Exploring Cellular Functions and Processes

What is the primary function of cellular respiration in cells?

• To produce glucose

• To generate ATP

• To store oxygen

• To break down DNA

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NGSS.HS-LS1-7

Which of the following best describes the structure of DNA?

• Single-stranded helix

• Double-stranded helix

• Triple-stranded helix

• Quadruple-stranded helix

Which of the following is a passive transport mechanism in cells?

• Endocytosis

• Osmosis

• Active transport

• Exocytosis

Explain how enzymes affect the rate of chemical reactions in cells.

• Enzymes increase the activation energy required for reactions.

• Enzymes decrease the activation energy required for reactions.

• Enzymes are consumed in the reactions they catalyze.

• Enzymes do not affect the rate of reactions.

Describe the role of homeostasis in maintaining cellular function.

• Homeostasis allows cells to change their DNA structure.

• Homeostasis maintains a stable internal environment in cells.

• Homeostasis increases the rate of cellular respiration.

• Homeostasis decreases the need for enzymes.

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NGSS.HS-LS1-3

Compare and contrast the processes of diffusion and osmosis.

• Both involve the movement of water molecules only.

• Diffusion involves solutes, while osmosis involves water across a membrane.

• Osmosis requires energy, while diffusion does not.

• Both processes require energy input.

Analyze how a mutation in the DNA sequence can affect protein synthesis.

• Mutations always result in beneficial changes to proteins.

• Mutations can alter the amino acid sequence, potentially affecting protein function.

• Mutations have no effect on protein synthesis.

• Mutations only occur in non-coding regions of DNA.

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NGSS.HS-LS1-1

NGSS.HS-LS3-2

Evaluate the impact of enzyme inhibitors on metabolic pathways.

• Enzyme inhibitors always increase the rate of metabolic reactions.

• Enzyme inhibitors can slow down or halt metabolic reactions by blocking enzyme activity.

• Enzyme inhibitors have no effect on metabolic pathways.

• Enzyme inhibitors permanently deactivate enzymes.

Predict the effect of a hypotonic solution on a cell.

• The cell will shrink due to water loss.

• The cell will swell and may burst due to water intake.

• The cell will remain unchanged.

• The cell will become more rigid.

This is the equation for...

• photosynthesis
• cellular respiration

Tags

NGSS.HS-LS1-7