U5 terms

Question 1

Irreversible Inhibiters

Answer 1

Bind tightly to enzyme and arent easily displaced

Question 2

Reversible Inhibiters

Answer 2

Can be displaced from the enzyme and has a role as enzyme regulators in metabolic pathways

Question 3

Competitive Inhibitors

Answer 3

Binds/competes w the active site and blocks substrate

Question 4

Non-competitive Inhibitors

Answer 4

Does not occupy the active site but distorts it so that the substrate and the enzyme don’t react

Question 5

Allosteric Regulation

Answer 5

A form of non competitive regulation, where it binds to a enzyme somewhere other than the active site. Controls enzymes in metabolic pathways

Question 6

Enzymes

Answer 6

Biological catalysts and can speed up chem reactions

Question 7

Substrate

Answer 7

is a reactant and enzymes act on these

Question 8

Active Site

Answer 8

Where substrate bind toenzymes and chem reactions occur to form the product.

Question 9

Denaturation

Answer 9

can lose shape and function this can be because of the heat and PH

Question 10

Intercellular Enzymes

Answer 10

Perform activity inside of cell that produces it

Question 11

Extracellular Enzymes

Answer 11

Functions outside of cell that it originates from, produced in one location but active in another

Question 12

Induced Fit Model

Answer 12

shows that enzymes are flexible and change shape when interacting with substrate

Question 13

Active Transport

Answer 13

Requires energy and molecules travel against the concentration gradient

Question 14

Passive transport

Answer 14

movement of molecules along the concentration gradient, no energy needed

Question 15

Osmosis

Answer 15

Diffusion of water across semipermeable membrane

Question 16

Endocytosis

Answer 16

Type of active transport that in which the plasma membrane folds around the substance in order to transport it across the membrane and into the cell

Question 17

Exocytosis

Answer 17

an active transport process in which the secretory vesicle merges with the plasma membrane to expel particles from the cell and into extracellular space

Question 18

Hypertonic

Answer 18

Low solute concentration
water enters cell
solution swells

Question 19

Isotonic

Answer 19

water moves in and out of cell
cell stays the same size

Question 20

Hypotonic

Answer 20

more solute solution outside
water exists cell
cell shrinks

Question 21

Phagocytosis

Answer 21

the engulfing of solid material to form vacuoles or phagosomes

Question 22

Receptor meditated endocytosis

Answer 22

triggered when certain metabolites bind to to specific receptor proteins so that the material can be engulfed

Question 23

Pinocytosis

Answer 23

the intake of liquids in order to form pinocytic vesicles

Question 24

Electrochemical Gradient

Answer 24

The combo of concentration gradient and voltage that effects ions movement

Question 25

Endergonic

Answer 25

absorbs energy in the form of work, reactions are nonspontaneous and reaction w a positive ∆G (∆G > 0)

Question 26

Exergonic

Answer 26

the release of energy, the energy of the reactants is higher than the energy of the products, is spontaneous nd product is negative

Question 27

Diffusion

Answer 27

random movement of molecules from high concentration areas to low concentration areas

Question 28

Facilitated Diffusion

Answer 28

diffusion that requires a helper protein