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Cell Structure and Types

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Questions and Answers

What is the primary function of the cell membrane?

To control what enters and leaves the cell (correct)

To store genetic material

To produce energy

To provide structure to the cell

Animal cells possess a cell wall.

False

What is the primary component of the plant cell wall?

cellulose

Cytoplasm is approximately _____% water in many cells.

70 Signup and view all the answers

Match the following terms with their definitions:

cell membrane = Controls substance movement in and out of the cell vacuole = Fluid-filled space in a cell cell wall = Tough layer outside the plant cell membrane cytoplasm = Jelly-like material filling the cell Signup and view all the answers

Which statement about the cell wall is TRUE?

It is fully permeable. Signup and view all the answers

Vesicles are larger than vacuoles in animal cells.

False Signup and view all the answers

What do plant vacuoles contain?

cell sap Signup and view all the answers

The primary function of the vacuole in plant cells is to help maintain the cell's _____ by pressing outwards.

shape Signup and view all the answers

Which of the following is NOT a type of metabolic reaction?

Osmosis Signup and view all the answers

Study Notes

Cell Structure

Cells have a cell membrane, a thin layer of protein and fat, which controls what enters and leaves the cell. It is partially permeable, allowing some substances to pass through but not others.
Plant cells have a cell wall made mainly of cellulose. This gives strength and support to the cell. The cellulose forms fibres that criss-cross over each other. The cellulose cell wall is fully permeable, allowing large molecules to pass through it.
Cytoplasm fills most of the cell and is mostly water (around 70%). Metabolic reactions take place in the cytoplasm.
Vacuoles are fluid-filled spaces inside cells, surrounded by a membrane. Plant cells have large, permanent vacuoles, filled with cell sap, which help maintain shape. Animal cells have smaller vacuoles called vesicles.
Plant cells are surrounded by a cell wall, making it hard to view the cell membrane.
Animal cells do not have a cell wall.

Cell Types

Plant cells are surrounded by a cell wall, while animal cells are not.
Plant cells have large permanent vacuoles whereas animal cells have smaller vacuoles (vesicles).

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Description

Explore the fascinating world of cell biology with this quiz on cell structure and types. Learn about the differences between plant and animal cells, the components of cells such as the membrane, cytoplasm, and vacuoles. Perfect for students eager to enhance their understanding of cellular biology.