End of the Week Photosynthesis / Diffusion Review

What is the primary pigment involved in photosynthesis?

• Chlorophyll

• Carotene

• Xanthophyll

• Anthocyanin

Explain how the process of osmosis affects plant cells when placed in a hypotonic solution.

• The plant cell shrinks

• The plant cell swells and becomes turgid

• The plant cell remains unchanged

• The plant cell bursts

Compare and contrast diffusion and osmosis in terms of their processes and outcomes.

• Both involve the movement of water molecules only

• Diffusion many different solutes/molecule, while osmosis involves water across a semipermeable membrane

• Both require energy input

• Osmosis involves solutes, while diffusion involves water

Describe the process of passive transport and provide an example.

• Movement of molecules against the concentration gradient, such as sodium-potassium pump

• Movement of molecules down the concentration gradient, such as diffusion

• Movement of molecules using energy, such as active transport

• Movement of molecules through vesicles, such as endocytosis

Which of the following best describes facilitated diffusion?

• Movement of molecules through a membrane without assistance

• Movement of molecules through a membrane with the help of transport proteins

• Movement of water molecules only

• Movement of molecules requiring energy

What is the main difference between active and passive transport?

• Active transport requires energy, while passive transport does not

• Passive transport requires energy, while active transport does not

• Both require energy

• Neither requires energy

Predict the effect on a plant cell if it is placed in a hypertonic solution and explain why.

• The cell will swell due to water intake

• The cell will shrink due to water loss

• The cell will remain unchanged

• The cell will burst due to water intake

Which of the following processes is an example of passive transport?

• Endocytosis

• Exocytosis

• Osmosis

• Sodium-potassium pump

What is the significance of the concentration gradient in diffusion?

• It determines the direction of molecule movement

• It provides energy for molecule movement

• It prevents molecules from moving

• It has no effect on molecule movement

Animals can not carry out photosynthesis because they lack which of the following?

• ATP Energy
• Oxygen
• Chloroplasts
• Mitochondria