Semester 1 Exam Test Review

Front

What is active transport?

Back

Active transport is the movement of solute particles from an area of lower concentration to an area of higher concentration, requiring energy.

Front

What is diffusion?

Back

Diffusion is the movement of solute particles from an area of higher concentration to an area of lower concentration without the use of energy.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process by which solute particles cross the cell membrane through protein channels, moving from higher to lower concentration.

Front

What is osmosis?

Back

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

Front

What distinguishes prokaryotic cells from eukaryotic cells?

Back

Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have a nucleus and organelles.

Front

What is a dependent variable in an experiment?

Back

The dependent variable is the factor that is observed and measured in an experiment.

Front

What is an independent variable in an experiment?

Back

The independent variable is the factor that is manipulated or changed in an experiment to observe its effect on the dependent variable.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

Front

What are hydrogen bonds?

Back

Hydrogen bonds are weak attractions between a hydrogen atom and an electronegative atom, crucial for the properties of water.