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Enzymes

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

What are enzymes?

Back (Answer)

biological catalysts that increase rxn without changing/consuming they alter the rate but not chemical equalibrium

#2
Front (Question)

T/F: catalyze reactions are specific and essential to things such as DNA synthesis and energy

Back (Answer)

true

#3
Front (Question)

T/F: without enzymes, the body could still function normally, probably

Back (Answer)

false

#4
Front (Question)

what are cofactors?

Back (Answer)

also called activators, non-protein substances essential for enzyme activity (INORGANIC) Ex: Mg, Cl, K, Zn

#5
Front (Question)

What are Coenzymes?

Back (Answer)

organic substances loosely binded to protein, participate but not substrate Ex. NADH, dehydrogenase (ORGANIC)

#6
Front (Question)

Apoenzyme definition

Back (Answer)

protein portion of an enzyme

#7
Front (Question)

holoenzyme definition

Back (Answer)

the complete, active enzyme complex (apoenzyme w coenzyme)

#8
Front (Question)

T/F: Zymogen is the inactivated secreted form of an enzyme

Back (Answer)

true

#9
Front (Question)

What are prosthetic groups?

Back (Answer)

tightly bound non-protein molecules

#10
Front (Question)

Active site

Back (Answer)

where substance is acted on substrate, specificity

#11
Front (Question)

What is an allosteric site?

Back (Answer)

cavity other than the active site, may also bind with enzyme

#12
Front (Question)

T/F: the Enzyme substrate complex is bound non covalently

Back (Answer)

true

#13
Front (Question)

What is another name for the ES complex?

Back (Answer)

adduct

#14
Front (Question)

What do oxldoreductases do?

Back (Answer)

transfer hydrogen and oxygen atoms from one substrate to another

#15
Front (Question)

what do transferases do?

Back (Answer)

transfer specific group from one enzyme to another

#16
Front (Question)

what do hydrolases do?

Back (Answer)

hydrolysis of a substrate

#17
Front (Question)

what do isomerases do?

Back (Answer)

change the molecular form of substrate

#18
Front (Question)

what do lyases do?

Back (Answer)

nonhydrolytic removal or addition of a group to substrate

#19
Front (Question)

what to ligases do?

Back (Answer)

joining of two molecules to form a new bond

#20
Front (Question)

What are some enzyme reaction conditions?

Back (Answer)

temperature specific Temp/pH most at body temp. NO HIGHER THAN 40 c (this denatures the protein)

#21
Front (Question)

T/F: at -5 c enzymes are inactivated and can be stored

Back (Answer)

true

#22
Front (Question)

Substrate concentration: concentration of an enzyme with steadily increasing concentration of substrate refers to which order?

Back (Answer)

first order kinetics

#23
Front (Question)

T/F: concentration is not a rate limiting step

Back (Answer)

false it is limiting

#24
Front (Question)

What is another name for excess substrate?

Back (Answer)

post zone phenomenon