1
Q
what has happened as species have evolved?
A
cells within organisms have become specialised to perform specific functions
2
Q
why do organisms need coordination?
A
to coordinate the function of different cells and systems to operate effectively
3
Q
how do animals react?
A
through electrical responses
4
Q
how do plants react?
A
through chemical responses
5
Q
what does coordination rely on?
A
communication at a cellular level through cell signalling
6
Q
what happens in cell signalling?
A
one cell releases a chemical which has an effect on another cell known as the target cell
7
Q
what does cell signalling allow to occur?
A
signals to be transferred locally
signals to be transferred across large distances
biology a2
flashcards
Decks in class (50)
# Cards
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6.3.1 a ecosystems11
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6.3.1 b biomass transfer through an ecosystem37
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6.3.1 c recycling within ecosystems37
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6.3.1 d succession31
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6.3.1 e measuring the distribution and abundance of organisms18
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6.3.2 a population size15
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6.3.2 b interactions between populations23
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5.1.4 a and b hormonal communication34
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5.1.4 c structure and function of the pancreas18
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5.1.4 d regulation of blood glucose concentration24
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5.1.4 e and f diabetes and its control25
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5.1.2 a b excretion, homeostasis and the liver34
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homeostasis15
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5.1.2 c the structure and function of the mammalian kidney26
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5.1.2 c functions of the nephrons33
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5.1.2 d kidney and osmoregulation16
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5.1.2 e kidney failure48
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5.1.2 f urine and diagnosis11
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5.1.1 c principles of homeostasis4
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5.2.1 general photosynthesis10
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5.2.1 d light dependent stage of photosynthesis17
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light-independent stage of photosynthesis16
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factors affecting photosynthesis9
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glycolysis10
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oxidative decarboxylation7
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the krebs cycle6
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oxidative phosphorylation10
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anaerobic respiration19
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5.2.2 respiratory substrates10
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5.2.2 ATP synthesis7
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5.1.1 communication7
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5.1.3 neurones11
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5.1.3 sensory receptors9
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5.1.3 nervous transmission25
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5.1.3 synapses17
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5.1.5 organisation of the nervous system9
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6.1.1 mutations and variation10
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5.1.5 plant hormones and growth in plants27
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5.1.5 plant responses to abiotic stress8
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5.1.5 structure and function of the brain26
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5.1.5 reflexes10
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5.1.5 voluntary and involuntary muscles48
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5.1.5 sliding filament model37
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6.1.1 mutations and variation26
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6.1.1 control of gene expression53
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6.1.1 body plans22
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6.1.1 key terms in genetics13
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6.1.2 variation and inheritance14
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6.1.2 monogenic inheritance6
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6.1.2 dihybrid inheritance1
