Second Exam

Question 1

Enzymes

Answer 1

Speed up a reaction by lowering activation energy needed for the reaction

Question 2

Substrate

Answer 2

Reacting molecule

Question 3

Transition state

Answer 3

In which the substrate becomes more reactive and the metabolic reaction accelerates

Question 4

Active site

Answer 4

Site where the substrate attaches to the enzyme

Question 5

What are enzymes made of

Answer 5

Proteins made of chains of amino acids

Question 6

Denature

Answer 6

When a enzyme’s effectiveness is destroyed by altering the active site

Question 7

How does heat affect enzyme activity?

Answer 7

The higher the temperature, the faster the reaction go, but too high of temperature will slow the reaction

Question 8

Catechol oxidase

Answer 8

Used to see how temperature on enzyme activity

Plant enzyme that converts catechol to benzoquinone

Question 9

Benzoquinone

Answer 9

Prevents decay in damages cells

Question 10

Biocatalysts

Answer 10

Accelerate metabolic reaction

Question 11

How does ph affect the enzyme activity

Answer 11

Increase the charge, usually better at neutral, but some increase activity as more basic or acidic solutions

Question 12

Catalase

Answer 12

Can be used to investigate the effects of oh to enzyme, can speed the breakdown in hydrogen peroxide

Question 13

Peroxidase

Answer 13

Enzyme in plants that converts toxic hydrogen peroxide to water and oxygen.

Question 14

Aerobic respiration

Answer 14

C6H12O6 + 6O2 -> 6CO2 + 6H2O+ ATP + Heat

Question 15

Anaerobic fermentation (plants)

Answer 15

C6H12O6-> 2C2H5OH + 2CO2 + ATP + heat

Question 16

Anaerobic fermentation (animals)

Answer 16

C6H12O6 -> 2CH3CHOHCOOH +ATP + Heat

Question 17

Pyruvate

Answer 17

A product of glycolysis

Question 18

Magnesium sulfate

Answer 18

Cofactor that activated some enzymes of glycolysis

Question 19

Sodium fluoride

Answer 19

An inhibitor of some enzymes of glycolysis

Question 20

Glucose

Answer 20

Used for respiration

Question 21

photosynthesis equation

Answer 21

6CO2+ 12H2O–chlorophll/light–> C6H2O6+ 6 H2O+ 6O2

Question 22

light reactions

Answer 22

splits water to release oxygen, electrons, and protons.

Question 23

Dark reactions

Answer 23

Converts carbon dioxide to sugar

Question 24

pigment

Answer 24

substance that absorbs light

Question 25

accessory pigments

Answer 25

cartenoids and xanthophylls | Absorb light and transfer energy to chlorophyll a

Question 26

Paper chromatography

Answer 26

Technique for separating dissolved compounds

Question 27

Why did the solution turn red

Answer 27

Electrons get excited but have nowhere to go, so they emit a red light

Question 28

Thylakoids

Answer 28

Photosynthetic membrane located in chloroplast