Cell Structure and Function and Homeostasis

Front

What happens to a cell placed in an isotonic solution?

Back

The cell stays the same size.

Front

What process allows water to move into plant root cells when the concentration of water is higher in the soil?

Back

Osmosis.

Front

In a hypertonic solution, where does water move?

Back

Outside the cell membrane.

Front

In a hypotonic solution, where does water move?

Back

Inside the cell membrane.

Front

What organelle is responsible for breaking down glucose to release energy for the cell?

Back

Mitochondria.

Front

Define osmosis in the context of cell biology.

Back

Osmosis is the movement of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is the difference between hypertonic and hypotonic solutions?

Back

Hypertonic solutions have a higher concentration of solutes compared to the inside of the cell, causing water to move out; hypotonic solutions have a lower concentration of solutes, causing water to move into the cell.

Front

What is homeostasis in the context of cell function?

Back

Homeostasis is the process by which cells maintain a stable internal environment despite changes in external conditions.

Front

How do cells respond to changes in their environment to maintain homeostasis?

Back

Cells can adjust their permeability, transport mechanisms, and metabolic activities to regulate internal conditions.

Front

What role do cell membranes play in maintaining homeostasis?

Back

Cell membranes regulate the movement of substances in and out of the cell, helping to maintain the appropriate balance of ions, nutrients, and water.