topic 4 - bioenergetics

Question 1

what is photosynthesis?

Answer 1

process which produces glucose for plants. it takes place is chloroplasts. it is endothermic.

Question 2

equation for photosynthesis

Answer 2

carbon dioxide + water —> glucose + oxygen

6CO2 + 6H2O —> C6H12O6 + 6O2

Question 3

what is glucose used for?

Answer 3

respiration
making cellulose
making amino acids

Question 4

how can you store glucose?

Answer 4

as lipids and starch

Question 5

limiting factors of photosynthesis

Answer 5

light intensity
carbon dioxide levels
temp

Question 6

greenhouses

Answer 6

they regulate: temp, light, carbon dioxide levels. they also make it harder for pests to attack plants.

Question 7

what is respiration?

Answer 7

respiration is the process of transferring energy from glucose

Question 8

what is aerobic respiration

Answer 8

it is the most efficient way to transfer energy from glucose. it is respiration which uses oxygen.

glucose + oxygen —> carbon dioxide + water

Question 9

what is anaerobic respiration?

Answer 9

it’s the incomplete breakdown of glucose making, lactic acid. anaerobic just means without oxygen. once this type of desperation has started there will be an oxygen debt which ur body will have to repay once exercise is done, recovery period.

glucose —> lactic acid

Question 10

word equation for anaerobic respiration in plants

Answer 10

glucose —> ethanol + carbon dioxide

Question 11

what is metabolism?

Answer 11

the chemical processes that occur within a living organism in order to maintain life.