Biology EOC Review 1

Front

What is the role of a contractile vacuole in protists?

Back

A contractile vacuole helps protists eliminate excess liquid, reducing pressure inside the cell and preventing it from bursting.

Front

What is the source of energy for the pumping process in a contractile vacuole?

Back

ATP is the source of energy for the pumping process in a contractile vacuole.

Front

What is the equation for cellular respiration?

Back

C6H12O6 + 6O2 → 6 H2O + 6 CO2.

Front

What is the best evidence that a cell is using active transport?

Back

ATP is being rapidly consumed near the cellular membrane.

Front

What happens to a freshwater plant's cells when placed in saltwater?

Back

The cells will shrink because water will move out of them.

Front

Where is the most energy stored in an ATP molecule?

Back

The most energy is stored in the bonds between the phosphate groups.

Front

Define active transport.

Back

Active transport is the movement of substances across a cell membrane against their concentration gradient, requiring energy (ATP).

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute 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.

Front

What is the function of ribosomes in a cell?

Back

Ribosomes are responsible for protein synthesis in the cell.