SCIENCE DEPARTMENT
As Biology Syllabus 9700 for exams in 2016
Year 12 Scheme Of Work 2015-2016
Term
1
Units Taught
Unit 1
Cells and the
Mitotic Cell cycle.
Curriculum/Syllabus covered
Section 1-Cell structure: Light and electron microscopes; Using
graticules and stage micrometers to calculate magnification of drawings
and measuring cells; structure and function of organelles in animals and
plants; characteristics of eurkaryotic and prokaryotic cells; structure of a
virus.
Section 5- The Mitotic cell cycle: Replication and division of nuclei
and cells; behavior of chromosomes in mitosis; stem cells; cancer.
Unit 2
Section 2-Biological molecules: Structure of carbohydrates, proteins
Biological
and lipids, and their roles in living organisms; Water and living organisms;
Molecules
biochemical tests.
Unit 3
Section 4- Cell membranes and transport: Fluid Mosaic model of
Cell membranes and membrane structure; movement of substances in and out of cells passive
Transport across
and active methods.
membranes
Unit 4
Section 3- Enzymes: Mode of action of enzymes; factors that affect
Enzymes
enzymes; enzyme kinetics.
2
Unit 5
Nucleic Acids and
Protein Synthesis
Unit 6
Transport in plants
Unit 7
Transport in
Mammals and Gas
exchange
Unit 8
Infectious disease
and immunity
3
Section 6- Nucleic acids and protein synthesis: Structure and
replication of DNA; role of DNA in protein synthesis.
Section 7- Transport in plants: The need for a transport system in
flowering plants; structure of transport tissue; transport mechanisms.
Section 8- Transport in mammals: The circulatory system; structure
and function of blood, blood vessels and the heart; role of haemoglobin;
control and co-ordination of the cardiac cycle.
Section 9- Gas exchange and smoking: The gas exchange system;
smoking and smoking-related diseases.
Section 10- Infectious disease: Causative agents, transmission and
prevention of cholera, malaria, tuberculosis (TB), measles and
HIV/AIDS, and their global importance; eradication of smallpox;
antibiotics.
Section 11- Immunity: The immune system; auto-immune diseases;
mode of action of phagocytes and lymphocytes; antibodies; vaccination
Revision
AS Biology 2015-2016 –Proposed List of Practical’s ( this list is not exhaustive, and other
practical lessons can be added)
Term
1
Unit
Unit 1
Cells and
the Mitotic
Cell cycle.
Practical
1. Investigation into
size and scale of
microscopic
tissues (AS
practical skills –
practical 1, p27)
2. Microscopic
observation of
cells and tissues
(AS practical skills
–practical 2, p33)
3. Preparing and
measuring onion
cells (worksheet)
4. Broad bean root
tip squash (AS
Practical Skills,
Practical 8, p67)
Unit 2
Biological
Molecules
1. Testing for the
presence of
reducing sugars
Practical 17, p57
Comprehensive
Practical biology
for A levels,
2. Testing for the
presence of starch
– practical 16 p56
‘Comprehensive
Practical Biology
for A levels’
3. Testing for the
presence of nonreducing sugars
Intended outcome
 Using a compound microscope with an
eyepiece graticule and stage micrometer.
 Calibrate an eyepiece graticule with a
stage micrometer
 Use the calibrated graticule to determine
the actual sizes of cells and tissues using
both low and high power objective
lenses.
 Use a compound microscope.
 Make clear and accurate plan and cellular
drawings of biological tissue
 Be able to interpret structures seen
through the microscope.
 Preparing and mounting a specimen on a
microscope slide.
 Calibrating an eyepiece graticule
 Measuring the size of onion cells.
 Making clear and accurate cellular
drawings.
 Experience simple techniques to observe
mitosis in cells in the root tip of broad
beans.
 Extend knowledge on the structure and
function of mitosis.
 Interpret and record observations.
 Understand and carry out the procedure
of benedicts test for reducing sugars.
 Be able to carry out serial dilutions.
 Be able estimate concentration of
reducing sugar qualitatively




Be able to carry out a starch test to
identify presence of starch.
Observe and explain the starch-iodine
mixture under a miscroscope.
Identify starch grains in potato using a
microscope
Understand and carry out the procedure
for non-reducing sugars.
Comprehensive
‘Practical biology
for A levels’
Practical 17 p57
4. Testing for the
presence of lipids
and proteins
‘Comprehensive
Practical biology
for A levels’
Practical 18 (a)
and (b), p59
5. The identification
of biological
chemicals present
in solutions
(practical 3- AS
Practical skills
p40)

Be able to carry out and explain the
Biuret test for proteins and smear and
emulsion test for lipids.

Decide what tests to carry out and what
observations to make.
Use an appropriate means to record
observations, constructing any tables
before you make observations.
Describe and summarise the key points
of your observations
Draw conclusions in terms of the
presence or absence of different
chemicals in the solutions.
Suggest alternative strategies for
identifying some of the materials.
Experience relevant methods, analysis,
conclusions and evaluation.
Describe and explain the relationship
between temperature and the
permeability of cell membranes.




Unit 3
Cell
membrane
s and
Transport
across
membrane
s
Unit 4
Enzymes
1. The effect of
temperature on
membrane
permeability in
beetroots. ‘AS
Practical Skills,
Practical 7, p62.

2. Water potential of
plant cells –
Practical 12, p41
‘Comprehensive
practical biology
for A Levels’
3. Past paper
question 1
1. The effect of pH
on enzymes –p51,
Practical 5, AS
Practical skills.







Experience relevant methods, recording,
analysis and evaluation.
Be able to estimate the water potential of
plant tissue.
Be aware of and practice the ‘wet’ type of
question 1 in AS practical exams.
Identify dependant and independent
variables
Make a hypothesis and express this in
words and graphically
Experience relevant methods, analysis
and conclusions

Term
2
Unit 5
Nucleic
Acids and
Protein
Synthesis
Unit 6
Transport
in Plants
2. The effect of
inhibitors on
enzyme activity.
Practical 6, p57,
AS Practical Skills.
3. Investigation of
the different
carbohydrates
metabolized by
yeast. AS Practical
Skills, p45,
practical 4.
ASSESSED
PRACTICAL
1. The extraction of
DNA from
onions. AS
Practical Skills,
Practical 9, p73
2. The effect of wind
speed on the rate
of transpiration in
a leafy shoot. AS
Practical Skills,
Practical 10, p78












3. Past paper
question 2 on
plant tissue




Unit 7
Transport
in
mammals
and gas
exchange
1. The structure of
the mammalian
heart. Practical 61,
p173,
‘Comprehensive
practical biology
for A Levels’


Describe the relationship between pH
and enzyme activity.
Evaluate procedures.
Experience relevant methods, analysis,
conclusions and evaluation.
Describe and explain the effect of a non
competitive inhibitor.
Experience relevant methods, analysis,
conclusions and evaluations.
Describe and explain the relationship
between temperature and the
permeability of cell membranes.
Experience simple techniques to extract
DNA from living materials.
Extend knowledge about structure of
DNA.
Identify dependent and independent
variables.
Make a hypothesis and express this in
words and graphically.
Identify the variables that should be
controlled.
Experience relevant methods, analysis
and conclusion.
Describe and explain the relationship
between transpiration and wind speed.
Evaluate procedures.
Identifying structures under the
microscope
Drawing plan diagram and high power
cell diagram.
Measuring cells or calculating
magnification.
Experience relevant methods, analysis
and conclusion.
Describe and explain the relationship
between structure and function of the
mammalian heart.
2. Microscopic
structure of blood
vessels. Practical
62, p175,
‘Comprehensive
practical biology
for A Levels’


Be able to interpret structures seen
through the microscope.
Describe and explain the relationship
between structure and function of
arteries, veins and capillaries.