bioenergetics

Question 1

photosynthesis equation

Answer 1

carbon dioxide + water —light—– glucose + oxygen

Question 2

what is photosythesis

Answer 2

change carbon dioxide and water into glucose and oxygen.

Takes place in the chloroplasts which contain chlorophyll

Question 3

uses of glucose

Answer 3

respiration(
cellulose(plant cell wall)
amino acids(combined with nitrate ions)
stored as oils(turned into lipids for storing seeds)
stored as starch(insoluble)

Question 4

what effects the rate of photosythesis

Answer 4

light, carbon dioxide, temp

Question 5

what else can be a limiting factor

Answer 5

chlorophyll

Question 6

equation for light intensity

Answer 6

1 / distance squared

Question 7

artificial conditions for farming

Answer 7

greenhouse
artificial light
increase carbon dioxide with paraffin heater
enclosed to stop pests
fertilizers

Question 8

what is respiration

Answer 8

process of transferring energy from the break down of glucose that goes on in every cell

Question 9

examples of what respiration does

Answer 9

build up larger molecules
allow muscles to contract
keep there body temp regulated

Question 10

what is metabolism

Answer 10

sum total of all the reactions that happen in a cell or the body

Question 11

examples of when larger molecules are made from smaller ones

Answer 11

small glucose molecules are joined to form starch, glycogen, cellulose

lipid made from 1 glycerol and 3 fatty acids

glucose and nitrate ions make amino acids

Question 12

examples of when larger molecules are bracken down into smaller ones

Answer 12

glucose broken down in respiration

excess protein is broken down to produce urea

Question 13

what is aerobic respiration

Answer 13

respiration with oxygen

Question 14

equation for aerobic respiration

Answer 14

glucose + oxygen ——— carbon dioxide + water

Question 15

what is anaerobic respiration

Answer 15

respiration without oxygen

incomplete breakdown of glucose making lactic acid

Question 16

equation for anaerobic respiration

Answer 16

glucose ——— lactic acid

Question 17

what is fermentation

Answer 17

when glucose and yeast react over a specific temp to form ethanol and carbon dioxide

Question 18

equation for fermentation

Answer 18

glucose —— ethanol + carbon dioxide

Question 19

what is an oxygen debt

Answer 19

amount of extra oxygen your body needs to react with the build up of lactic acid and remove it from your cells

Question 20

what is formed from the reaction with lactic acid and oxygen

Answer 20

carbon dioxide and water

Question 21

ways that you get rid of the lactic acid

Answer 21

blood transports lactic acid to liver and is converted to glucose

breathing hard to get oxygen

Question 22

what happens during vigorous exercise

Answer 22

body can’t supply oxygen quickly enough so respire anaerobically

lactic acid builds

muscle fatigue

Question 23

ways to get more oxygen into your body during exersise

Answer 23

breathing rate increases to get more oxygen

heart rate increases to get oxygenated blood around the body

removes carbon dioxide

Question 24

what happens during exercise

Answer 24

need energy for your muscles to contract and so increased respiration is needed