Unit 2: Intro to Cells Review

Front

What is Passive Transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy. It occurs naturally due to concentration gradients.

Front

What is Active Transport?

Back

Active transport is the movement of substances across a cell membrane using energy, usually against a concentration gradient.

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What are Unicellular Organisms?

Back

Unicellular organisms are living entities that consist of a single cell, such as bacteria and yeast.

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What are Multicellular Organisms?

Back

Multicellular organisms are living entities that consist of multiple cells, such as humans, plants, and animals.

Front

What is a Cell?

Back

A cell is the basic unit of structure and function in living things, responsible for carrying out life processes.

Front

What is the Cell Membrane?

Back

The cell membrane is a protective barrier that controls what enters and leaves the cell, maintaining homeostasis.

Front

What is Cytoplasm?

Back

Cytoplasm is the jelly-like substance within a cell that contains organelles and is the site of many metabolic processes.

Front

What is the function of Mitochondria?

Back

Mitochondria are known as the powerhouse of the cell, converting nutrients into energy through cellular respiration.

Front

What is Endocytosis?

Back

Endocytosis is the process by which cells take in substances by engulfing them in a membrane.

Front

What is Exocytosis?

Back

Exocytosis is the process by which cells expel materials by vesicles fusing with the cell membrane.