bio unit 3 aos 2 pracs

aim for prac one (immoblised algae)

to investigate how light and alage effect the prodution of c02 and …..

aim for prac 2 (immoblilded yeast)

to investage how glucose and yeast effect the fermaention by measuring ph levels

aim for prac 3( immoblised yeast)

to investigate how 1ml of glucose and yeast effect the respritaion rate by measuring the ph levels

aims for all

to inverstage the effects of altering enviromental condistions of biochemical pathways by measuring activity levels

what we found

the more basic for ph turned the liquid pink while more acid turned yellow

co2 works oppsite to ph

evalute the data

not vaild

qualiative data

limiting precsion

key finding prac a

light + age needed for recation

key finding prac b

need both yeast= gulcose to create reaction

key finding prac c

yeast in aerobic with glucose produced carbon dioxide, indicating cellular respiration happened

errors systematic

not an acurate volume in each tube

error random

subjective of colour change

error sys effect on data

decrease accuracy as all resluts would be higher or lower

error ran effect on data

decrease reilbity acts on precion

modications systamtic

use caliprated piplet to measure exact

modifcation random

colour meter or ph probe

mod sys effect on data

increase accuracy + vality by ensuring consistant and correct measurments across all trails

mod ran effect of data

increase preciosn by applying quanitsve data not subjective