Cells
Cell Membrane
Passive Transport
Active Transport
Tonicity
100
The smallest units of life
What are cells?
100
The structure that regulates what enters and exits the cell?
What is the cell membrane?
100
Transport that does not require energy.
What is passive transport?
100
Movement of molecules across a cell membrane that requires energy.
What is active transport?
100

In an isotonic solution, water moves in and out of the cell at this rate.

What is equally/balanced or stays the same?

200
Cells without a nucleus.
What are prokaryotes?
200
Four ringed structure in the cell membrane that keeps it fluid.
What is cholesterol?
200
The movement of molecules from high concentration to low concentration.
What is diffusion?
200

Active transport that keeps sodium from building up in the cell.

What is protein pump?

200
This solution has an equal number of solutes in and outside the cell.
What is isotonic.
300
A structure within a cell that performs a specific function.
What is an organelle?
300

This structure is found in plant cells and gives the cell extra support.

What is the cell wall?

300
Diffusion of water.
What is osmosis?
300
Molecules that are too large to move in the cell are transported through this process.
What is endocytosis?
300
Solution with high solute concentrations on the outside of the cell, making a cell shrink.
What is hypertonic?
400

This jelly-like material fills the inside of the cell.

What is cytoplasm?

400
These act as channels to allow molecules to move in and out of the cell.
What are proteins?
400
The movement of molecules across a membrane with the help of a protein. Does not require energy.
What is facilitated diffusion?
400
Vesicles transport wastes out of the cell through this process.
What is exocytosis?
400
Solution with a low solute concentration on the outside, making the cell swell.
What is hypotonic?
500
The two organelles that are in a plant cell, but not in an animal cell?
What are cell wall and chloroplast.
500

Cells are able to maintain stable internal conditions through this process.

What is homeostasis?

500

What is the difference between passive and active transport?

Passive transport does not require ATP and moves substances down the concentration gradient. Active transport requires ATP and can move substances against the concentration gradient.

500

During active transport molecules move in this direction across the cell membrane.

What is from low concentration to high concentration?

500
After diffusion or osmosis a cell will be in this state.
What is homeostasis?
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