Paper 1 B4 - Bioenergetics

Question 1

what effects the rate of photosynthesis?

Answer 1

intensity of light
concentration or CO2
temperature

Question 2

how does photosynthesis produce glucose?

Answer 2

uses energy to change carbon dioxide and water into glucose and oxygen

Question 3

What is aerobic respiration?

Answer 3

respiration using oxygen

Question 4

Where does aerobic respiration happen?

Answer 4

inside mitochondria

Question 5

what does anaerobic mean?

Answer 5

without oxgyen

Question 6

glucose becomes what?

Answer 6

lactic acid

Question 7

What happens to the rate of photosynthesis as light intensity increases?

Answer 7

rate increases

Question 8

what needs to happens when the photosynthesis graph levels out?

Answer 8

CO2 or temperature need to be increased

Question 9

what is respiration?

Answer 9

process of transferring energy from the breakdown of glucose

Question 10

is respiration exothermic or endothermic?

Answer 10

Exothermic - transfers energy to environment

Question 11

What are the 3 examples of how organisms use energy in respiration?

Answer 11

larger molecules
muscles contract
keep body temperature steady

Question 12

What food test is used for sugars?

Answer 12

Benedict’s

Question 13

what food test is used for starch?

Answer 13

Iodine test

Question 14

what food test is used for lipids?

Answer 14

Sudan IV

Question 15

what food test is used for proteins?

Answer 15

buiret test