Emzymes

Question 1

Metabolism

Answer 1

The sum of all chemical reactions in an organisms

Question 2

What is sunlight capable of being absorbed by

Answer 2

Cellular pigments

Question 3

Eg of solar energy

Answer 3

Solar energy

Question 4

Cellular energy

Answer 4

The energy stores in the bonds of bio molecules

Question 5

Eg cellular energy

Answer 5

Respiration

Question 6

Enzymes

Answer 6

Biological catalysts made of protein

Question 7

What are enzymes made in

Answer 7

Living things called biological catalysts

Question 8

Catalysts

Answer 8

Speed up a reaction without being used up in the reaction

Question 9

What biomolecule is in an enzyme

Answer 9

Protein

Question 10

The nature of enzymes are..

Answer 10

Proteins

Question 11

When are proteins made

Answer 11

When amino acids join together in ribosomes

Question 12

What is it called when proteins are made when amino acids join together in ribosomes

Answer 12

Protein synthesis

Question 13

What are most enzymes

Answer 13

Globular proteins

Question 14

What are globular proteins

Answer 14

Folded into 3D shape

Question 15

Enzymes that act in proteins are called

Answer 15

Proteases

Question 16

Enzyme reactions are

Answer 16

Reversible

Question 17

Catabolic enzyme

Answer 17

Breaks a complex molecule into a smaller one

Question 18

Eg of catabolic reactions

Answer 18

Respiration and digestion

Question 19

DNA polymerase

Answer 19

Forms and repairs DNA

Question 20

DNA ligase

Answer 20

Converts simpler molecules into complex ones

Question 21

What is an anabolic process in plants

Answer 21

Photosynthesis

Question 22

Name two examples of anabolic reactions in plants

Answer 22

Protein synthesis and DNA

Question 23

What is the substance the enzyme acts on

Answer 23

Substrate

Question 24

Active sight

Answer 24

Part of the enzyme that combines with the substrate

Question 25

The active sight is fixed to

Answer 25

Fit the substrate

Question 26

What happens when the substrate enters the active sight

Answer 26

It changes shape slightly

Question 27

What is it called when the enzyme fits precisely around the substrate

Answer 27

Induced fit model

Question 28

Inhibitors

Answer 28

Can prevent enzymes from working

Question 29

What type of enzymes do inhibitors attach to

Answer 29

Nerve transmissions

Question 30

What dénaturés an enzyme involved in respiration

Answer 30

Cyanide

Question 31

Eg of an inhibitor

Answer 31

Cyanide

Question 32

Beneficial inhibitors

Answer 32

Pain killers | Antibiotics

Question 33

Dentatured enzymes

Answer 33

Lots it’s active shape and can no longer carry out its function

Question 34

Bioprocessing

Answer 34

Use of enzyme controlled reactions to produce a product

Question 35

Eg of bioprocessing

Answer 35

Making cheese

Question 36

Bioreactor

Answer 36

A vessel in which living things/ their enzymes are used to make a product

Question 37

How do you prevent enzymes freely dissolving

Answer 37

Immobilise them

Question 38

Immobilised enzymes

Answer 38

Attached to each other it in an inert substance and can be used repeatedly

Question 39

Eg of how they are immobilised

Answer 39

Enclosed within a gel (sodium alginate)

Question 40

Advantage of immobilised enzymes

Answer 40

Can be reused | Cheaper

Question 41

What converts lactose to glucose

Answer 41

Lactase

Question 42

What converts glucose to fructose

Answer 42

Glucose isomerase

Question 43

What makes chemical reactions faster

Answer 43

Higher temperatures

Question 44

What temperature do enzymes denature

Answer 44

40 dégrées

Question 45

What is the optimum pH for an enzyme

Answer 45

7

Question 46

Pepsin pH

Answer 46

1 or 2

Question 47

An enzyme cannot act on

Answer 47

Only one substrate

Question 48

Phosphorylation

Answer 48

Thé addition of phosphate to a molecule

Question 49

NADP

Answer 49

Nicotinamide adénine dinucleotide phosphate

Question 50

Where is catalase found

Answer 50

Celery

Question 51

What does catalase do

Answer 51

Converts hydrogen peroxide into water and oxygen

Question 52

What does washing up liquid do in an experiment

Answer 52

Breaks down cell membranes

Question 53

What does the volume of foam indicate

Answer 53

Activity of an enzyme

Question 54

How do you vary temperature

Answer 54

water bathS

Question 55

How do u keep the temperature steady

Answer 55

Use one water bath