7th Grade T2:L3 and 4

Which process allows large particles to leave a cell?

• Endocytosis
• Diffusion
• Osmosis
• Exocytosis

Why are selectively permeable membranes important in maintaining homeostasis?

• They allow all substances to enter and exit the cell
• They prevent any substances from entering or exiting the cell
• They have no effect on homeostasis
• They allow only necessary substances to enter and exit the cell

What is the definition of osmosis?

• The diffusion of all substances
• The diffusion of water molecules
• The process of molecules moving from an area of lower concentration to higher concentration
• The process of molecules moving from an area of higher concentration to lower concentration

What is the definition of selectively permeable?

• Only water molecules can cross the membrane
• No substances can cross the membrane
• Some substances can cross the membrane while others cannot
• All substances can cross the membrane

How do exocytosis and endocytosis compare and contrast?

• They are the same process
• Exocytosis allows particles to leave the cell while endocytosis takes particles into the cell
• They have no relationship
• Endocytosis allows particles to leave the cell while exocytosis takes particles into the cell

What is the cell cycle?

• The process of water molecules moving from an area of higher concentration to lower concentration
• The process of molecules moving from an area of higher concentration to lower concentration
• The process of molecules moving from an area of lower concentration to higher concentration
• Sequence of events in which the cell grows, prepares for division, and divides to form two daughter cells

Label each part of the diagram using the following terms: Passive Transport Active Transport Diffusion Osmosis Label Box A, Box B and Box C by writing the answers below.

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Which phase of mitosis involves the chromosomes lining up along the center of the cell?

• Telophase
• Anaphase
• Metaphase
• Prophase

Which phase of mitosis involves the nuclear membrane breaking apart?

• Prophase
• Anaphase
• Metaphase
• Telophase

What is the process by which molecules move from an area of higher concentration to lower concentration?

• Endocytosis
• Osmosis
• Exocytosis
• Diffusion