Bio Lab Exam 2

before you dump the enzyme-active presoak into the washing machine, be sure to _____ so it will do a better job

• dilute the enzyme with water

• add ammonia to break up the stain

• rub it into stained area to increase enzyme-substrate contacted

• turn up the water temp so the enzyme molecules move faster

the substrate binds at the enzyme's

• active site

• promoter site

• inhibitor site

• allosteric site

an increase in the concentration of substrate will result in

• an increase in velocity of the reaction, until all of the enzyme is bound by substrate

• a steady and continued decrease in velocity

• steady and continued increase in velocity

• concentration of substrate does not affect properties of the reaction

which of the following statements about enzymes is FALSE?

• over a narrow temp range

• the substrate binds to the enzyme with low specificity

• optimal activity of an enzyme occurs within a narrow pH range

• enzyme undergoes a conformational change that brings substrates closer together in an induced fit

as the concentration of an enzyme increases for a given substrate

• there is no change

• reaction rate increases similarly

• reaction stops

• rate of reaction decreases to a point

in an enzyme controlled reaction, a substrate is the same as

• enzyme

• an inhibitor

• product

• reactant

among the different forms of electromagnetic radiation emitted by the sun, which form is absorbed by plants for photosynthesis?

• visible light

• UV

• gamma

• microwaves

Tags

NGSS.HS-LS1-5

of the visible light spectrum, the rate of photosynthesis is worst under

• green

• yellow

• blue

• red

Tags

NGSS.HS-LS1-5

a given enzyme works on

• no substrate

• one type of substrate

• one of two possible substrates

• any number of different substrates

if you were testing the effect of temp on the catalase enzyme, which of the following should be held constant between all of your experimental groups?

• all of the above

• the length of time the reaction was allowed to proceed

• amount of enzyme added to each tube

• amount of substrate added to each tube