B2 Revision Checklist

Subject knowledge
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Name the cell
organelles.
State the function of
cell organelles.
Describe differences
between animal and
plant cells.
Explain the function of
cellulose, chloroplasts
and vacuole in
plant/algal cells.
Describe the structure
of bacterial cells,
including the lack of
distinct nucleus,
cytoplasm and cell
membrane.
Identify that yeast are
a single celled
organism which have a
nucleus, cytoplasm and
membrane surrounded
by a cell wall.
Explain how the
following cells are
adapted to their
function;
Red blood cell
Ciliated cell cell
Sperm cell
Root hair cell
Palisade cell
Explain the process of
diffusion and factors
affecting it.
Explain the process of
osmosis.
Explain the process of
active transport
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Subject knowledge
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Explain what cell
differentiation is
State what a stem cell
is
Define what is meant
by a tissue
Explain the function of
muscle tissue,
glandular tissue and
epithelial tissue.
Describe how tissues
form organs, which
can be composed of
various tissues.
Explain the role of
muscular tissue,
glandular tissue and
epithelial tissue in the
stomach
Define the term organ
system, and explain
the role of the
following organs in
digestion
Pancreas
Salivary glands
Stomach
Small/large
intestine
Liver
Identify the position of
epidermis, palisade
cell, mesophyll cell and
stoma in a leaf.
Explain the function of
the xylem and phloem
State the function of
the stem, root and
leaves.
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Subject knowledge
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Write the equation for
photosynthesis
Explain how carbon
dioxide and water are
obtained for this
reaction.
Describe the role of
chlorophyll and where
it is found.
Explain how light
energy catalyzes a
reaction between
carbon dioxide and
water.
Describe what
happens to glucose
after photosynthesis.
Explain what starch is
and why it’s only
present in green parts
of a leaf
Explain how the
following factors affect
the rate of
photosynthesis
Light
Temperature
Carbon Dioxide
Recall the role of
glucose in the plant,
and how it forms
cellulose or used to
produce proteins
Analyse graphs to
identify limiting factors
of photosynthesis.
Understand that plants
use nitrate ions
absorbed from the soil
to form proteins.
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Subject knowledge
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Explain how
temperature can affect
the growth of
organisms
Explain how availability
of nutrients can affect
the growth of
organisms
Explain how the
amount of light can
affect the growth of
organisms.
Explain how the
availability of water
may affect the growth
of organisms.
Explain how the
availability of oxygen
and carbon dioxide
affect the growth of
organisms.
State what is meant by
qualitative data.
Explain the difference
between random
sampling and sampling
along a transect.
Explain the pattern of
growth in relation to
the above factors.
Explain what is meant
by biotic factors
Explain what are
meant by abiotic
factors.
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Describe how long
chains of amino acids
folded in specific
shapes form proteins.
State the function of
proteins acting as
hormones, antibodies
and catalysts.
State what is meant by
a catalyst.
Explain what is meant
by the lock and key
theory.
Define the terms
substrate and
products.
Explain how enzymes
get denatured and the
effect on an enzymes
active site.
Explain how PH and
temperature can affect
enzymes
Explain where amylase
is produced and its
function.
Explain where protease
is produced and its
function
Explain where lipase is
produced and it’s
function
Explain the function of
hydrochloric acid in the
stomach
Explain where bile is
secreted and why it
neutralizes stomach
acid.
Explain how bile acts
as an emulsifier.
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State the equation for
aerobic respiration
State the equation for
aerobic respiration
State that enzymes
control reactions.
Recall the reactants
and products of
photosynthesis
State that aerobic
respiration occurs in
both animal and plant
cells.
Explain where aerobic
respiration occurs and
where anaerobic
respiration occurs.
Explain how energy
from respiration is used
for muscle contraction,
homeostasis and to
build larger molecules.
Explain the
physiological effects of
exercise including
Blood flow
Oxygen deliver
Sugar
Carbon dioxide
Heart rate
Explain how glucose is
stored in the body
Explain why the body
uses anaerobic
respiration.
State the equation for
anaerobic respiration
Explain how anaerobic
respiration produces
much less energy than
aerobic respiration.
State what is meant by
oxygen debt and lactic
acid
How stem cells can be
used to treat
State the differences
conditions
such as
between DNA,
chromosomes and
genes.
Explain Mendels idea
of inherited factors.
State chromosomes
contain genetic
information.
Explain the process of
mitosis and that
genetically identical
cells are formed.
Explain how mitosis
occurs during growth
to produce
replacement cells.
State that body cells
have 2 sets of
chromosomes, but
gametes have 1
Explain the terms
maternal and paternal.
Explain the process of
meiosis.
Explain how genetic
material is combined
as gametes fuse at
fertilisation
Explain how stem cells
can be found in human
embryos and adult
bone marrow, which
differentiate into
various types of cells.
How stem cells can be
used to treat
conditions such as
paralysis
Subject knowledge
Asexual reproduction
results in offspring
with genetically
identical cells to the
parent cells.
State that during
sexual reproduction
variation arises due to
each game giving a
pair of alleles each.
State that there are 23
pairs of chromosomes,
on of which
determines sex (XX
females XY males).
Each gene may have
different forms called
alleles
Explain the terms
genotype, gene, allele,
heterozygous,
homozygous and
phenotype
Explain the difference
between dominant and
recessive.
Explain that
chromosomes are
made up of DNA which
have a double helix
structure.
Explain that each gene
codes for a particular
combination of amino
acids which in turn
makes a protein
Describe how some
genetic disorders are
inherited
Explain polydactyl,
cystic fibrosis and
embryo screening.
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Explain that early life
has been dated using
fossils
Explain how fossils are
formed
Explain why parts of
the Earth’s timeline
have no fossil record
Explain how we can
interpret a organisms
physiological and
ecological form from its
bone structure.
Explain what is meant
by genetic variation
Explain what is meant
by geographical
isolation
Explain how extinction
may be caused by
Environmental
changes.
New predators
New diseases
Catastrophe
Speciation
State what is meant by
natural selection
Explain how speciation
can form as a result of
geographical isolation.
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