GCSE BIOLOGY -

Mistakes

investigation stuff

IV - person → reaction times, IV

time - is an example of categoric data → takes any value within a range, discrete = only certain values, e.g. time could be 11.45pm

Pie chart → represent gases - atmosphere of Earth

How much car is worth each year for a 6-year period = categoric →line graph, bar chart = for categoric stuff - descriptive

Conclusion - relationship between variables → findings are then linked back to hypothesis

Conclusion - clear relationship between variables established before scientific knowledge used

cell stuff

Skeletal muscle connected to bones

Not chemical signals but electrical signals carried via nerve cells

Platelets →forms scabs → scabs form scars (skin has healed)

O2 not carried directly in blood plasma → red blood cells carry it

No movement of bones in skull → backbone bones limited movement

Tendons connect muscle to bones

Only bone marrow inside large bones

aduly#t stem cells - brain, intestines, fat tissue

adult stem cells in kids too

All stem cells in plants can turn into all cell types not all plant cll are stem

The shoot is the organ system in plants that is made from leaves, stems, buds, fruits and flowers. The root organ system is underground.

The slime capsule does give the cell protection and stops it drying out.

Only liquids and gases can move by diffusion.

GCSE BIO → cell structure

Axon → helps to pass impulses along nerve cell → not an exchange surface but villi in digestive system are

Calculating percentage change = final-initial/initial x 100

Change in value/change in time (2015 - 2021) x

Product of anaerobic respiration → lactic acid

Vasodilation → reduces body temp

to do

hazard symbols

units

mean, median, mode

drawing diagrams

skeleton

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