Unit 6 Review

Front

What is a prokaryote?

Back

A prokaryote is a type of cell that does not have a nucleus or other membrane-bound organelles.

Front

What is the main difference between plant and animal cells regarding their structure in water?

Back

Plant cells have a rigid cell wall that helps protect their shape, while animal cells do not have a cell wall and can burst in water.

Front

What happens to molecules when the concentration is equal on both sides of a membrane?

Back

The molecules will continue to move in both directions equally.

Front

What is equilibrium in the context of cells?

Back

Equilibrium is the state where the concentration of molecules is equal on both sides of a membrane.

Front

What does it mean for a membrane to be permeable to water but not to salt?

Back

It means that water can pass through the membrane, but salt particles cannot, leading to movement of water while salt remains in place.

Front

Define diffusion.

Back

Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration.

Front

What is the function of a cell wall in plant cells?

Back

The cell wall provides structure and protection, helping to maintain the cell's shape.

Front

What is the role of the nucleus in a cell?

Back

The nucleus directs cell activities and contains the cell's genetic material.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane.

Front

What happens to animal cells in a hypotonic solution?

Back

Animal cells may burst due to the influx of water.