1st Semester Review #3

Front

What is diffusion?

Back

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

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What is active transport?

Back

Active transport is the process of moving molecules across a cell membrane using energy, often against their concentration gradient.

Front

What does hypertonic mean?

Back

Hypertonic refers to a solution that has a higher concentration of solute compared to another solution.

Front

What is a nucleotide?

Back

A nucleotide is the monomer of nucleic acids, consisting of a sugar, a phosphate group, and a nitrogenous base.

Front

What is evaporation?

Back

Evaporation is the process by which water changes from a liquid to a gas, often occurring from the ocean to the atmosphere.

Front

What is osmosis?

Back

Osmosis is the passive transport 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 phagocytosis?

Back

Phagocytosis is a type of active transport where a cell engulfs solid particles, often referred to as 'cell eating'.

Front

What is the difference between passive and active transport?

Back

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

Front

What is a solvent?

Back

A solvent is a substance that dissolves a solute, resulting in a solution; water is a common solvent.

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solvent to form a solution.