3.5 Bio Active Transport Questions

What is active transport?

• Movement of molecules from high to low concentration

• Movement of molecules across a membrane from low to high concentration

• Movement of molecules without energy

• Movement of molecules through diffusion

Which of the following is true about active transport?

• It is the natural movement of molecules

• It does not require energy

• It uses transport proteins that get energy from chemical reactions

• It occurs only in plants

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What is required for active transport to occur?

• Sunlight

• Chemical energy

• Water

• Oxygen

What do transport proteins use to move substances against the concentration gradient?

• Light energy

• Chemical energy

• Mechanical energy

• Thermal energy

What is the role of ATP in the function of transport proteins?

• It acts as a structural component

• It provides energy

• It serves as a signaling molecule

• It acts as a transport medium

What does the term "phagocytosis" literally mean?

• Cell division

• Cell movement

• Cell eating

• Cell respiration

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NGSS.HS-LS2-3

Which cells are primarily responsible for phagocytosis in the immune system?

• Red blood cells

• Macrophages

• Platelets

• Neurons

Phagocytosis is crucial for:

• Photosynthesis

• Cellular respiration

• Immune defense

• Protein synthesis

What is released outside the cell during exocytosis?

• Water

• Chemicals

• Proteins

• Lipids

What would happen if vesicles in neurons were unable to fuse with the cell membrane?

• Signals would be sent faster

• Signals would not be sent

• Signals would be stronger

• Signals would be weaker