Metabolic pathway. Begin with a particular reactant and terminate with an end product.

Usually protein molecules that function as organic catalysts to speed chemical reactions.

The reactant molecules that the enzyme acts on.

Region on the surface of an enzyme where the substrate binds and where the reaction occurs.

Energy of activation (Ea)

The energy needed to cause molecules to react with one another.

Mechanism for regulating metabolic pathways in which concentration of the product is kept within a certain range until binding of the substrate to the enzymes active site reduces or stops the activity of the pathway.

molecules move down their concentration gradient until equilibrium is achieved and are distributed equally.

Contains both a solute and a solvent.

Usually solids or gases like dyes.

Facilitated diffusion

Molecules diffuse across a plasma membrane through a channel protein or with the assistance of carrier proteins.

Is the diffusion of water across semipermeable membrane from an area of high concentration to an area of lower concentration. Often uses aquaporins.

Water moves from areas of low solute concentration.

Water moves from areas of high solute concentration.

Have equal solute concentrations; the cell never gains or loses water.

Selectively permeable

Certain substances that can freely pass through the membrane, some are transported across, others are prohibited from entering or leaving.

Substances move from an area of higher concentration to an area of lower concentration and no energy is required.

Help

Options

focusNode

Didn't know it?
click below

Knew it?
click below

Don't Know

Remaining cards (0)

Know

retry

shuffle

restart

0:00

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Biology Chapter 5

Chapter 5 vocabulary 2

Term	Definition
Biochemical pathway	Metabolic pathway. Begin with a particular reactant and terminate with an end product.
Enzymes	Usually protein molecules that function as organic catalysts to speed chemical reactions.
Substrates	The reactant molecules that the enzyme acts on.
Active site	Region on the surface of an enzyme where the substrate binds and where the reaction occurs.
Energy of activation (Ea)	The energy needed to cause molecules to react with one another.
Feedback inhibition	Mechanism for regulating metabolic pathways in which concentration of the product is kept within a certain range until binding of the substrate to the enzymes active site reduces or stops the activity of the pathway.
Diffusion	molecules move down their concentration gradient until equilibrium is achieved and are distributed equally.
Solution	Contains both a solute and a solvent.
Solute	Usually solids or gases like dyes.
Solvent	Usually liquids
Facilitated diffusion	Molecules diffuse across a plasma membrane through a channel protein or with the assistance of carrier proteins.
Aquaporins	Channel proteins for water
Osmosis	Is the diffusion of water across semipermeable membrane from an area of high concentration to an area of lower concentration. Often uses aquaporins.
Hypotonic solution	Water moves from areas of low solute concentration.
Hypertonic solution	Water moves from areas of high solute concentration.
Isotonic solution	Have equal solute concentrations; the cell never gains or loses water.
Lysis	Disrupted cells.
Hemolysis	Disrupted red blood cells.
Selectively permeable	Certain substances that can freely pass through the membrane, some are transported across, others are prohibited from entering or leaving.
Passive transport	Substances move from an area of higher concentration to an area of lower concentration and no energy is required.

Created by: jwatts1

Popular Biology sets

Genetics: Monohybrid, Dihybrid, & Non-Mendelian

Unit 2- Requirements of Life

Evidence of Evolution

"Know" box contains:
Time elapsed:
Retries: