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Unit 6 Alevel biology flashcards
- Module
- Unit 6 IAL biology
- Institution
- PEARSON (PEARSON)
This includes details of the experiments needed to know for the unit 6 biology paper. It includes the limitations of each method too.
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Hey calculations :minute ventilation :
in gas volume :
change
QUESTION
MV = tidal Volume ✗ BR
IT r 2h distance moved
/ Cms -1
c- min
ANSWER
,more limitations :
QUESTION
contamination
plant growth rate
→
→ more than 1 growth regulator
involved .
of bacteria
bacteria / agar → contamination / uneven spread
of inhibition
difficulty measuring zone
extract used
'
one source of plant
'
quadrat scnanaeiauicuiy
' '
→ eas soil moisture -
Mann cannot
- s → dimwit to measure
control generic variability
all variables which Anett
to control
growth → ditriaut
dimwit to measure
rate seedling growth s
-
ANSWER ↳ bacteria / virus inlection growth
, Method limitations :
QUESTION
habituation → difficult to standardise tone of touch
water currents
=
→
difficult to control age / SA →
is stimulation
difficult to assess reflex MUY occurred .
other
brine eggs → not all viable .
mistakes when counting eqqs ,
factors may influence hatching rate
Akechi % cover ditniuit
aaelstaae of plant growth
,
plant abundance →
to identity plant correctly , during day variables
change Canale Ot sun temp humidity)
, ,
be controlled, difficult
rate bubbles VAM in size , SA cannot
Psn → Oz
variables altering Psn of plants camps
to control all
liquid culture
growth rate
ANSWER
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