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Biology Revision: AS
topic outlines for Mr Jenkins
MODULE 3a |
MODULE BYB 3a - Physiology and Transport
Section |
Time |
12.1/2 – Mass transport & mammalian heart
see 10.4 – SA:Volume ratios |
Approx. 8 ½ |
Learning Objectives
- Mass transport enables the efficient transport of materials
around the body.
- Structure function of the heart.
- Cardiac cycle related to flow through heart (diastole
& systole) and pressure changes in heart & aorta.
- Control of heartbeat via SAN, AVN & BoH.
- Role of medulla, baro & chemoreceptors in aorta
& carotid sinus in response to exercise.
- Structure / function of blood vessels.
Core Reading
Collins AS Pages 154-156, 177, 158-160
EXTENSION – Clegg Pages 225, 230-235, 228-229
Other references
Biofact sheet 35
Assessments
| Task |
Due in |
Mark |
| Collins AS – 154;Q1-3 |
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| Collins AS – 157;applic |
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| Churchman – 142-145;1,2,5 |
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| Collins AS – 178;9, 180;10, 181;4,5 |
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| Churchman – 147-149;1,2,4,5 |
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| Collins AS – 159;5, 166;3 |
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| Churchman – 142-145;3 |
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MODULE BYB3a - Physiology and Transport
Section |
Time |
| 12.1/2 – exchange of materials, O2 dissociation
control of ventilation and formation of tissue fluid |
Approx. 5 ½ |
Learning Objectives
- Whats in blood and where things are exchanged.
- Loading and unloading of haemoglobin on an O2 dissociation
curve.
- Effects of pH and CO2 on O2 dissociation curve.
- Role of medulla & stretch receptors in ventilation.
- Role of medulla and receptors in lungs, aortic &
carotid bodies during exercise.
- Formation of tissue fluid, and its differences between
blood, plasma and lymph.
- Role of lymph system in returning excess tissue fluid
to blood.
Core Reading
Collins AS Pages 161-163, 174-176, 163-165
EXTENSION – Clegg Pages 226-227, 238, 236-239, 220
Other references
Biofact sheet 9 & 89.
Assessments
| Task |
Due in |
Mark |
| Collins AS – 161;7, 162;8 |
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| Churchman – 186-189;3, 4, 5 |
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| Collins AS – 174;6, 176;applic. |
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| Churchman – 149;3 |
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MODULE BYB 3a- Physiology and Transport
Section |
Time |
12.3 – energy & exercise
see P.E. students for help. |
Approx. 4 |
Learning Objectives
- Glucose, glycogen and triglycerides are sources of
energy for muscles.
- ATP is the immediate source.
- Comparison of ATP release from aerobic and anaerobic
respiration.
- Muscle fatigue is increased lactate that dissociates
to lactic acid – thus decreasing blood pH.
- How lactate is dealt with.
Core Reading
Collins AS Pages 169-170, 171-173
EXTENSION – Clegg Pages
Other references
Biofact sheet 66.
Assessments
| Task |
Due in |
Mark |
| Collins AS – 169;1, 181;1 |
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| Collins AS – 172;4 |
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| Collins AS – 172;applic, 173;3, 181;2 |
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MODULE BYB 3a - Physiology and Transport
Section |
Time |
| 12.4 – root structure and uptake of water &
ions in transpiration stream & xerophytic adaptations |
Approx. 6½ |
Learning Objectives
- Distibution and adaptation to function of hairs, endodermis,
xylem and phloem..
- How water passes from soil to xylem (apoplast &
symplast).
- Root pressure and cohesion-tension theories in the
xylem.
- Affect of light, humidity, air movement on transpiration
rate.
- Xerophytic adaptations.
Core Reading
Collins AS Pages 190-193, 196, 185-189
EXTENSION – Clegg Pages 241, 243-246, 383
Other references
Biofact sheet 82 & 84.
Assessments
| Task |
Due in |
Mark |
| Clegg 250;2a |
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| Churchman – 152-154;3a,b, 157-160;1,2b,c,d |
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| Churchman – 152-154;4,6,7a |
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| Collins AS – 198;2 |
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| Churchman – 156-160;3 |
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| Collins AS – 189;applic |
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MODULE BYB 3a- Physiology and Transport
Section |
Time |
| 12.4 – translocation and evidence for transport
in plants. |
Approx. 2½ |
Learning Objectives
- Phloem transports organic substances via mass flow.
- Experimental evidence – radioactive tracers
and ringing experiments, relate this to the mass flow
hypothesis.
Core Reading
Collins AS Pages 194-197
EXTENSION – Clegg Pages 246-248
Other references
Biofact sheet 82.
Assessments
| Task |
Due in |
Mark |
| Collins AS – 198;3 |
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| Churchman – 158-160;4 |
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