bioenergetic

Question 1

photosynthesis

Answer 1

is a chemical reaction which takes place in plants. converts carbon dioxide and water into glucose and oxygen
it uses light energy from sun to power chemical reaction which is absorbed by the green pigment chlorophyll this means its endofermic whole reaction takes place inside chloroplast

Question 2

what is glucose for in photosynthesis

Answer 2

respiration stored as starch fats or oils to produce cellulose amino acids or protien synthesis

Question 3

effect light intensity photosynthesis practicvle

Answer 3

1. measure 20cm3 of sodium hydrogen carbonate solution pour into a boiling tube
2. collect 10cm piece of pondweed and gently attach a paperclip to one end
3. clam boiling tube ensuring you will be able to shine light into pomdweed
4. place a metre rule next to clamp stand
5. place lamp 10cm away from the pondweed
6. wait two min until pondweed started to produce bubbles
7. using stopwatch count the number of bubbles produced in a minuit
   8.repeate stages 5-7 moving lamp 10cm away
8. repeat whole thing twice to ensure you have three readings for each distance

Question 4

variables for light intensity photosynthesis required practicaol

Answer 4

independant-light inensity
dependant-amount of bubbles produced
control- same amount of time and pondweed

Question 5

light intensity equATION

Answer 5

light intensity 1/distance2

Question 6

respiration

Answer 6

is the chemical reaction which occurs inside the mitochondria of all living cells release energy for living functiond and processes e.g movement , warmth exothermic

Question 7

aerobic

Answer 7

using oxygen

Question 8

anerobic

Answer 8

without oxygen

Question 9

oxygen debt

Answer 9

during vigorous exercise body carries out anarobic respiration produces lactic acid transported through bloodstreeme to liver liver converts to glucose oxygen needed for this reaction