Cambridge iGCSE 0654 (Biology Units)
TOPIC
I can …….
List and describe the characteristics of
B1. Characteristics of
living organisms
B2. Cells
B3. Enzymes
B4. Nutrition
B4.1 Nutrients
B4. Nutrition
B4.2 Plant nutrition
living organisms.
Be able to give definitions (and understand them) for:
• Nutrition
• Excretion
• Respiration
• Sensitivity
• Reproduction
• Growth
• Movement
Identify, describe and explain the differences between plant
and animal cells (under a light microscope (LM) )
Relate the structures of animal & plant cells to their
function (and do this along with identification under a LM)
Relate the structures of red blood cells (to transport) and
root hair cells (to absorption)
Define diffusion and osmosis
Explain how osmosis is involved in the uptake of water by
plants
Describe enzymes as proteins that act as biological catalysts
Describe the effect of changing
• Temperature
• pH
….on enzyme activity
Explain the reason pH and temperature affect enzyme
activity
Link to chemistry à understand catalysts.
à basics of protein polymerization
(condensation reaction)
Describe the structure of large bio-molecules
• sugars to starch (and glycogen)
• amino acids to proteins
• fatty acids and glycerol to fats and oils
To know the chemical elements that make up the above.
Know the chemical tests for starch, sugars, protein & fats.
List sources of, needs and deficiency symptoms for
Carbohydrates – Fats – Protein – Vitamins C & D – Calcium –
Iron – Fibre - Water
Know how microorganisms are used to make yoghurt
Photosynthesis
Definition, word equation, symbol equation, role of
chlorophyll, intake of raw materials (CO2, H2O, light),
Labeling of a leaf under a LM. (Label the chloroplasts,
stomata, mesophyll, xylem and phloem)
of light
Fertilisers Know the need of nitrate and magnesium ions
and the effects if the plant doesn’t get these!
Eutrophication Describe the effects of overuse of fertilisers
L
K
J
TOPIC
B4. Nutrition
B4.3 Animal
nutrition
B5. Transportation
B5.1 ..in plants
B5. Transportation
B5.2 ..in humans
B6. Respiration.
B7. Co-ordination
and response
…Nerves etc
I can …….
Digestion
Define ingestion and egestion
Describe the functions of the alimentary canal and be able
to label: Mouth, Salivary glands, Esophagus, stomach, S
intestine, duodenum, ileum, pancreas, liver, gall bladder, L
intestine, colon, rectum and anus.
Relate chemical digestions to the idea of small molecules
being produced that can be absorbed (enzymes)
Recall functions of amylase, protease and lipase and where
they are produced.
Small intestine
• It’s adapted structure (villi and microvilli)
• What happens in absorption
Role of fat, and the role of bile in digesting fat.
Identify the xylem and phloem and give their function
Transpiration
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Give definition for
How does temperature, light and humidity affect this?
Explain how transpiration “pulls” water up by a tension
force between water molecules
Translocation
• Give definition for
• Explain the direction of in terms of areas of storage
and areas of growth
Describe and explain the heart structure in terms of:
Muscular wall – septum – atria – ventricles - valves
Discuss the path blood takes and by which vessels as it
moves to and from the heart, lungs, liver and kidneys.
Identify and give functions of:
White blood cells – red blood cells – platelets - plasma
Link structure and function in veins, arteries and capillaries
Define respiration
Give word and symbol equation for aerobic respiration
Give word and symbol equation for anaerobic respiration
Compare aerobic and anaerobic respiration
Describe the role of anaerobic respiration in causing muscle
fatigue and in yeast during bread making and brewing.
State the difference between inspired and expired air
Test for limewater
Features of gas exchange surfaces in animals (e.g. lung
adaptations
Role of mucus and cilia in gas exchange
Effects of smoking on the lungs
Explain the effects of physical activity on breathing
Identify features of lungs on diagrams (bronchi, trachea etc)
Structure and function of the eye features.
Identify motor neurons, relay neurons, and sensory neurons
in diagrams
Describe a simple reflex arc
J
K
L
TOPIC
I can …….
B7. Co-ordination and
response
Compare nervous and hormone systems
Role of insulin
Role of adrenaline
… Hormones etc
B7. Co-ordination and
response
… Tropic responses
B7. Co-ordination and
response
… Homeostasis
B8. Reproduction
B9. Inheritance
B10. Energy flow in
ecosystems
B11. Human
influences on the
ecosystem
Geotropism
Phototropism
Role of auxins
Define homeostasis
Understand and communicate the idea of negative
feedback
How the body maintains a constant temperature
Vasodilation, vasoconstriction
How the body maintains a constant blood sugar level
Insulin, glucagon hormones
Sexual and asexual reproduction
• Advantages and disadvantages
• Give definitions for both
Adaptations of plants to asexual reproduction (wind etc)
Label the features involved in plant and animal
reproduction
Communicate the events of pollination
Gametes (sperm and egg), zygotes à when formed?
Role of the placenta and amniotic fluid in pregnancy
Compare breast feeding with using bottled milk
HIV and it’s affects
Understand cell division (mitosis and meiosis)
Define and use the terms haploid and diploid.
Define:
• Gene
• Chromosome
• Allele
• Genotype/Phenotype
• Homozygous/Heterozygous
• Recessive/dominant
• mutations
Calculate and predict results from genetic crosses (punnet
squares)
Discuss the difference between continuous and
discontinuous variation
Natural selection (and evolution concept)
Natural selection in formation of drug resistant bacteria
Food chains/webs and terminology (consumer, producer,
trophic level, energy transfer)
The Carbon cycle (and role of combustion)
Explain why a food chain will not often have more than 5
organisms.
Deforestation (causes and effects)
Pollution (causes and effects)
Air pollution and Water pollution
J
K
L
B11. Human influences
on the ecosystem
continued…
Need for conservation
Overuse of fertilisers à Eutrophication
Causes and effects of acid rain
Link between greenhouse gases (CO2, CH4 and H2O) and
global warming
Where to go for Revision:
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Exercise book!!!
Cambridge 2016 Specification iGCSE Revision Guide
GCSE Bitesize - http://www.bbc.co.uk/schools/gcsebitesize/science
There are lots of great short video clips which explain difficult scientific concepts in an
easy to understand way on http://www.bbc.co.uk/learningzone/clips/
Each other
Just for starters…
Revision Techniques
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Target areas that need work on, don’t spend all your time covering things you already
know
Module mind maps
Past paper questions
Learn key words, use pictures, colours, highlighting
Posters, including diagrams, pin them up where you will see them
Quiz cards – question on front, answer on back
Teach someone else and fill in gaps in understanding as you identify them!
Play quizzes and games on GCSE Bitesize
Make summary notes for each topic above
Practice example questions using the various physics equations