Enzymes - SB1 Flashcards

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1
Q

What are enzymes

A

Enzymes are proteins that function as biological catalysts

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2
Q

what are enzymes purpose?

A

they speed up chemical reactions within the body

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3
Q

how do they aid you within digestion

A

enzymes break down your food to allow you to process nutrients

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4
Q

what are the 4 types of enzymes?

A

amylase, catalase, starch synthase, DNA polymerase

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5
Q

where are amylases found?

A

saliva and small intestine

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6
Q

what product is broken down by amylase + what does it break down into?

A

they break down starch into sugars (such as maltose)

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7
Q

where are catalases found?

A

most cells but especially liver cells

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8
Q

what do catalases break down + what do they turn into?

A

breaks down hydrogen peroxide into water + oxygen

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9
Q

what do starch synthases break down and into what?

A

glucose -> synthesis of starch

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10
Q

where are DNA polymerases found?

A

in the nucleus

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11
Q

what do DNA polymerase break down + turn into?

A

monomer -> synthesis of DNA

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12
Q

what food molecule is an enzyme

A

protein

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13
Q

how many substrates (molecules that the enzyme reacts with) are enzymes specific to?

A

only 1

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14
Q

what is the product in a reaction where polymer is the substrate (enzyme acting as catalyst), starch is the staring molecule, and amylase beaks it down

A

glucose

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15
Q

what 3 letters do enzymes usually end with?

A

-ase

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16
Q

list 3 enzymes

A

lactase maltase, cellulase, lipase, amylase, protease

17
Q

if the substrate is lactose, what is the product?

A

glucose + galactose

18
Q

if the substrate is maltose, what is the enzyme

A

maltase

19
Q

where are starch synthases found?

A

plants

20
Q

if the product is glucose what is the choice of substrate

A

maltose + cellulose

21
Q

if the substrate is lipid, name the enzyme and product

A

glycerol + fatty acid

22
Q

if the enzyme is amylase, what is the substrate?

A

starch

23
Q

if the product is peptides + polypeptides what is the enzyme?

A

protease

24
Q

what do synthetase enzymes create?

A

new molecules

25
Q

What experiment can be done to how the PH of enzymes?

A

the banana test

26
Q

what does the banana test aim to show?

A

To see the amount of glucose sugars reduced in a substance, to see the reaction of enzymes in banana

27
Q

what does a lock and key diagram show?

A

how the substrate works with the enzyme

28
Q

what is the active site?

A

part of the enzyme where the substrate fits into at the start of the reaction

29
Q

what does de-natured mean?

A

when the enzyme’s active site shape has been changed either to pH or temp. so the substrate can’t fit anymore