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Flashcards in Proteins Deck (16)
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1
Q

What are coenzymes ?

A

Co e zynmes are derivatives of vita

Mins wthout which the enzyme cannot exhibit a y reaction.

2
Q

………… accepts a particular group removed from substrate
Or donates a particular group to the substrate

A

Co enzyme

3
Q

Co enzymes are also called c

A

Co substrate because the changes that take place in substrates are complimentary to the changes in coenzymes.

4
Q

Properties of an enzyme includes?

A

(ASCRIZ)Active siteCatalytic ecficiencySpecificityBond SpecificityRegulationZymogens*Isoenzymes,

5
Q

Specificity of enzymes are divided into

A

Absolute Specificity

*Stereo specificity

6
Q

Enzyme molecule contains a pocket called……….

A

Active Site.

7
Q

The active site contains ………..

A

Amino acid chains that create a three dimensional surface complementary. to the substance.

8
Q

Metal activated enzymes… form only Loose and easily dissociable complexes with the metal without denaturing

A

TrueTfue

9
Q

……..hold the metal tightly and do not release it even during extensive purification.

A

Metalloenzymes

10
Q

Enzyme substrate is converted to ………which dessociates to ……… &……..

A

Enzyme product.

Enzyme &Product s

11
Q

Active site of substrate may contain……….. ……. …… …

A

Hydroxl group of serine, hydroxyl group of tyrosine, S-H thiol group of cysteine or imindazolelle group of histidine

12
Q

Enzymes having the same catalytic activity act on the same substrate, and produces the same product it originated at did site are calldd

A

Iso enzymee

13
Q

Primary protein structures refer to…..

A

The linear sequence of amino acid residues in a polypeptide chain.Disulfide bonds are involved in primary protein structures

14
Q

Folding of polypeptide chain along it’s long axis bring about

A

Secondary structure of proteins.

15
Q

Folding of polypeptide chain forming secondary protein structure can be ……, ……. or …..

A

Ordered,disordered or random.

16
Q

What are zymogens?

A

They are enzymes produced in inactive forms and only activated when needed.eg pesinogen and trypsinogen