Cell Transport and Indicators

Front

Diffusion

Back

Passive transport. Movement of molecules from an area of higher concentration to an area of lower concentration.

Front

Selectively Permeable

Back

Describes the cell membrane which only lets some things pass through.

Front

Small Molecules

Back

Can pass through the selectively permeable membrane. Glucose, a monomer, is a small molecule.

Front

Benedict's solution

Back

Glucose indicator. Blue in color. Turns orange when glucose is present.

Front

Starch

Back

A polymer. Starch is too large of a molecule to pass through the selectively permeable membrane.

Front

Indicator

Back

A substance that changes color to indicate the presence of another substance (examples: iodine, Benedict's solution).

Front

Glucose

Back

A simple sugar that makes up starch. Chemical formula: C_6H_{12}O_6.

Front

Diagram of iodine solution reacting with starch

Back

Shows the color change to blue-black when starch is present.

Front

Isotonic

Back

Having the same solute concentration as another solution.

Front

Hypotonic Solution

Back

Solute concentration is less than that inside the cell; cell gains water.