plants

hydrogen carbonate indicator

increase co2 - yellow and respiration

decreased co2 - purple and photosynthesis

xylem

water and mineral ions

phloem

sucrose and amino acids

rate of transpiration experiment

cut shoot underwater at an angle

assemble shoot in potometer underwater

remove from water and dry leaves

seal gaps with Vaseline so its water tight

introduce a bubble by removing end of capillary tube from beaker

record start position of bubble

start timer

record new position

tropism

a growth response to a stimulus

eukaryotic vs porkaryotic

complex

have nucleus

have chromosomes

have organelles

protoctist bacteria example

plasmodium - malaria

bacterium bacteria example

pneumococcus - pneumonia

virus bacteria example

influenza virus - flue

HIV - aids

phosphate mineral ion

contains phospurs making DNA

needed for respiration and growth

potassium mineral ion

helps enzymes

needed for photosynthesis and respiration

increasing crop yields

fertilisers - mineral ions

but cause NAPDOD

alternatives to chemical fertillisers

manure

compost

dung