5.1 Understand the terms ecosystem, community, population and habitat.
5.2 Understand that the numbers and distribution of organisms in a habitat are controlled by biotic and
abiotic factors.
5.3 Understand how the concept of niche accounts for distribution and abundance of organisms in a habitat.
Questions/Keywords/ Notes / diagrams:
definitions:
Write the definitions of the
following key words:
Community, Habitats,
Ecosystems, Populations,
Abiotic and Biotic factors
Explain the effect of pH
levels, light Intensity, Soils
Textures/compaction, and
temperature, on the
distribution of animals and
plants in an
ecosystem/habitat
State what anthropogenic
factors are and how they
might affect the
distribution of organisms
in an ecosystem
Explain how biotic
factors/relationships
affects the distribution of
organisms in a habitat
{Competition
[inter/intraspecific],
diseases [parasitism and
mutualism]
Draw a predator – prey
diagram and explain how
the abundance of each
population is affected by
each other
Define the word niche and
how it is linked to
behavioural, anatomical
and physiological
adaptation of organisms
within it
Summary:
,Topic/spec points:
5.4 Understand the stages of succession from colonisation to a climax community.
Questions/Keywords/ Notes / diagrams:
definitions:
Define Succession
Explain the stages in
primary and secondary
succession
Distinguish with examples
the differences between
pioneer species and
climax community
Explain the link between
deflected succession and
secondary succession
Explain why Deflected
succession is not primary
succession
Summary:
, Topic/spec points:
5.5 Understand the overall reaction of photosynthesis as requiring energy from light to split apart the strong
bonds in water molecules, storing the hydrogen in a fuel (glucose) by combining it with carbon dioxide and
releasing oxygen into the atmosphere.
5.9 Understand the structure of chloroplasts in relation to their role in photosynthesis.
Questions/Keywords/ Notes / diagrams:
definitions:
Label each constituent
part of a chloroplast and
state the function of each
part
Explain what
photophosphorylation,
photolysis and redox
reactions are
Apply the idea of redox
reactions to water
molecules in photolysis
and the formation of
NADPH in the light
dependent reaction
Summary: