nutriton

Question 1

what is phtotsyntheiss

Answer 1

the process where you make carbohydrates from raw material using energy from sunlight

Question 2

process of PS

Answer 2

• plants have chloroplast
  -chloroplast contains chlorophyll
• chlorophyll absorbs light energy
• that energy make glucose form co2 and 0
• oxygen is a waster product

Question 3

equations for ps

Answer 3

6 co2 + 6o2 –> 6 C6H1206 + 6 02

Question 4

use of glucose

Answer 4

• makes sucrose for transport
• make amino acids
• make cellulose for cell walls
• produces starch
• make fatty aicds and lips to store energy in seed

Question 5

limiting factors heat

Answer 5

heat : increas rops
more ke
more change of sucsessful collisons between enzyme and substrate
until opt temp

Question 6

limiting facortr co2

Answer 6

• increase rate of ps
  until a new limiting factors takes place as it is on short supply

Question 7

limiting factor chlorphyll

Answer 7

more chlorophyll increase rate of ps

Question 8

limiting facortr light

Answer 8

increase rate of ps
until a new limiting factors takes place as it is on short supply

Question 9

leaf strucutre

Answer 9

wax cuticle
upper epidermis
palisade mesophyll
spongy mesophyll
air space
lower epidermis
guard cells
vascular bundle
xylem
plhomes

Question 10

xylem where diagram cell

Answer 10

on insid e

Question 11

wax cuciule adaprations leaf

Answer 11

wax cuticule - allows sun to come throgut but stil protwext plant

Question 12

uppers + lower episdermis

Answer 12

thin and tranparent to let light come through to plaise cells

Question 13

plalisde mesophyll cells

Answer 13

contain chlorolphyll to help absorbs lots of light

Question 14

spongs mesophylly

Answer 14

have hair spaces to help give plant LSA to co2 can diffues theough

Question 15

guard cells

Answer 15

opens the stomata when its light outside to allow gas echachne and close when dark so no water is loss due to transpairation

Question 16

mg

Answer 16

make chlorphy
yellow leves

Question 17

mg

Answer 17

make chlorphy
yellow leves

Question 18

nitrate

Answer 18

make amnio acid
yellow opeaves + stunnted gerowth

Question 19

expermient 1 test for stracth

Answer 19

• de-strach for 24 hours in dark cupbaord or
• heat water up in a test tube using a Bunsen burner
• once leaf bacterial dead + wax
• heat up ethanol using testube and beaker or water abth
• dip leath in
• cover leaf with idone solution
• if strach presnt blue-blavk
  no strach oragne - brown

Question 20

test for CO2

Answer 20

destach plant - all starch on leaf already used up so wont effect results of test

but 2 plastic cones around plant / but both in sealer glass bell jar
one will have potassium hydroxide or soda lime to absorb the co2 in the air the other will have none
leave them in the sun fr 24 hrs
test leaf for strach

Question 21

test for chlorphly

Answer 21

dame as for strach but with variated leaf

Question 22

how structure of a leaf is adapted for photosynthesis

Answer 22

• LSA
  -upper epidermis / cuticle;
  transparent / lets light through;
  -chloroplasts / chlorophyll;
  palisade (mesophyll);
• spongy (mesophyll);
  diffusion; ir space
• stomata / guard cells;
• xylems
• thin leaf
• waxy cuticule

Question 23

what happens to leaf when it is being de strached

Answer 23

(
starch removed / starch used / no starch / eq;

(converted to) glucose;
respiration / energy;