Cells and Cell Transport

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy (ATP).

Front

Does active transport require energy?

Back

Yes, active transport requires energy to move substances against their concentration gradient.

Front

What defines a prokaryotic cell?

Back

A prokaryotic cell is defined by the lack of membrane-bound organelles.

Front

What is osmosis?

Back

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

Front

What is the best example of osmosis?

Back

Water moving through the cell membrane.

Front

What structures are found in plant cells but not in animal cells?

Back

Chloroplasts and cell walls are found in plant cells but not in animal cells.

Front

What is the function of chloroplasts?

Back

Chloroplasts are organelles in plant cells that conduct photosynthesis, converting light energy into chemical energy.

Front

What is the role of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell, maintaining homeostasis.

Front

What is diffusion?

Back

Diffusion is the passive movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy and moves substances down their concentration gradient, while active transport requires energy to move substances against their gradient.