Question

1. passive or active transport

correct answers | your responses
pinocytosis | active | active | (correct)
simple diffusion | passive | passive | (correct)
facilitated diffusion | passive | passive | (correct)
phagocytosis | active | active | (correct)
exocytosis | active | active | (correct)
sodium potassium pump | active | active | (correct)
osmosis | passive | passive | (correct)
endocytosis | active | active | (correct)

1. passive or active transport (8 points)

☑ pumps ions across membrane from low to high concentration a. passive
b. active
☑ cell drinking, liquid materials moving into the cell
☑ movement across membrane with help of channel protein
☑ gas crossing across membranes from high to low
☑ materials moving into the cell
☑ movement of water through a semi - permeable membrane
☑ materials moving out of the cell
☑ cell eating, solid materials moving into the cell

Explanation:

3. Passive or Active Transport (8 points)

1. pumps ions across membrane from low to high concentration

• Explanation: Active transport requires energy to move substances against the concentration gradient (low to high).
• Answer: b. active

1. cell drinking, liquid materials moving into the cell

• Explanation: Pinocytosis (cell drinking) is a type of endocytosis, which is active transport.
• Answer: b. active

1. movement across membrane with help of channel protein

• Explanation: Facilitated diffusion (with channel proteins) is passive (moves down concentration gradient).
• Answer: a. passive

1. gas crossing across membranes from high to low

• Explanation: Simple diffusion (gases like O₂/CO₂) is passive (moves down concentration gradient).
• Answer: a. passive

1. materials moving into the cell

• Explanation: Endocytosis (e.g., phagocytosis, pinocytosis) is active; but some passive processes (e.g., diffusion) can also move materials in. However, the context here likely refers to active (endocytosis) or passive? Wait, the question is general. Wait, no—if it’s “materials moving into the cell” via active (endocytosis) or passive (diffusion). But the options are passive/active. Wait, the original table had endocytosis as active. But the question is “materials moving into the cell”—this is too broad? Wait, maybe the question is part of a set. Wait, no—let's recheck. Wait, the user’s image shows the 3rd question with checkboxes. Wait, maybe the question is to match each statement to a or b. Let's re-express:

• Statement 5: “materials moving into the cell” — Endocytosis (active) or diffusion (passive). But the options are a (passive) or b (active). Wait, maybe the intended answer is b (active) if it’s endocytosis, but diffusion is passive. This is ambiguous, but likely the question refers to active transport (endocytosis) here. Wait, no—maybe the question is from a standard worksheet. Let's proceed with the context of the previous table (where endocytosis is active). So:
• Answer: b. active (if referring to endocytosis) or a (if diffusion). But given the previous table, endocytosis is active, so “materials moving into the cell” via endocytosis is active.

1. movement of water through a semi - permeable membrane

• Explanation: Osmosis is passive (water moves down concentration gradient).
• Answer: a. passive

1. materials moving out of the cell

• Explanation: Exocytosis (materials out) is active transport.
• Answer: b. active

1. cell eating, solid materials moving into the cell

• Explanation: Phagocytosis (cell eating) is a type of endocytosis, which is active transport.
• Answer: b. active

Final Answers for Each Sub - Question:

1. pumps ions across membrane from low to high concentration: b. active
2. cell drinking, liquid materials moving into the cell: b. active
3. movement across membrane with help of channel protein: a. passive
4. gas crossing across membranes from high to low: a. passive
5. materials moving into the cell: b. active
6. movement of water through a semi - permeable membrane: a. passive
7. materials moving out of the cell: b. active
8. cell eating, solid materials moving into the cell: b. active

Answer:

3. Passive or Active Transport (8 points)

1. pumps ions across membrane from low to high concentration

• Explanation: Active transport requires energy to move substances against the concentration gradient (low to high).
• Answer: b. active

1. cell drinking, liquid materials moving into the cell

• Explanation: Pinocytosis (cell drinking) is a type of endocytosis, which is active transport.
• Answer: b. active

1. movement across membrane with help of channel protein

• Explanation: Facilitated diffusion (with channel proteins) is passive (moves down concentration gradient).
• Answer: a. passive

1. gas crossing across membranes from high to low

• Explanation: Simple diffusion (gases like O₂/CO₂) is passive (moves down concentration gradient).
• Answer: a. passive

1. materials moving into the cell

• Explanation: Endocytosis (e.g., phagocytosis, pinocytosis) is active; but some passive processes (e.g., diffusion) can also move materials in. However, the context here likely refers to active (endocytosis) or passive? Wait, the question is general. Wait, no—if it’s “materials moving into the cell” via active (endocytosis) or passive (diffusion). But the options are passive/active. Wait, the original table had endocytosis as active. But the question is “materials moving into the cell”—this is too broad? Wait, maybe the question is part of a set. Wait, no—let's recheck. Wait, the user’s image shows the 3rd question with checkboxes. Wait, maybe the question is to match each statement to a or b. Let's re-express:

• Statement 5: “materials moving into the cell” — Endocytosis (active) or diffusion (passive). But the options are a (passive) or b (active). Wait, maybe the intended answer is b (active) if it’s endocytosis, but diffusion is passive. This is ambiguous, but likely the question refers to active transport (endocytosis) here. Wait, no—maybe the question is from a standard worksheet. Let's proceed with the context of the previous table (where endocytosis is active). So:
• Answer: b. active (if referring to endocytosis) or a (if diffusion). But given the previous table, endocytosis is active, so “materials moving into the cell” via endocytosis is active.

1. movement of water through a semi - permeable membrane

• Explanation: Osmosis is passive (water moves down concentration gradient).
• Answer: a. passive

1. materials moving out of the cell

• Explanation: Exocytosis (materials out) is active transport.
• Answer: b. active

1. cell eating, solid materials moving into the cell

• Explanation: Phagocytosis (cell eating) is a type of endocytosis, which is active transport.
• Answer: b. active

Final Answers for Each Sub - Question:

1. pumps ions across membrane from low to high concentration: b. active
2. cell drinking, liquid materials moving into the cell: b. active
3. movement across membrane with help of channel protein: a. passive
4. gas crossing across membranes from high to low: a. passive
5. materials moving into the cell: b. active
6. movement of water through a semi - permeable membrane: a. passive
7. materials moving out of the cell: b. active
8. cell eating, solid materials moving into the cell: b. active