Biology Fall Final Review

Front

What is Active Transport Pump?

Back

A process that moves molecules across a cell membrane from a region of lower concentration to a region of higher concentration, using energy (ATP).

Front

What is the scientific method?

Back

A step-by-step process that scientists use to guide their observations and explain their findings.

Front

What happens to a cell in a Hypotonic solution?

Back

The cell expands in size and may burst (lyse) due to the influx of water.

Front

Why would a mouse in jar A die before the mouse in jar C?

Back

The mouse in jar A will not be able to make ATP through cellular respiration.

Front

What is one job proteins do not have in the body?

Back

Insulation.

Front

What is Facilitated Diffusion?

Back

A process that allows substances to cross membranes with the assistance of special proteins, without the use of energy.

Front

What is Osmosis?

Back

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 difference between Isotonic, Hypertonic, and Hypotonic solutions?

Back

Isotonic: Equal concentration of solutes; Hypertonic: Higher concentration of solutes outside the cell; Hypotonic: Lower concentration of solutes outside the cell.

Front

What is ATP?

Back

Adenosine triphosphate, the energy currency of the cell, used in various cellular processes.

Front

What role do enzymes play in biological reactions?

Back

Enzymes speed up chemical reactions by lowering the activation energy required.