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    • 1 The nature and variety of living organisms
    • 2 Structures and functions in living organisms
    • 3 Reproduction and inheritance
    • 4 Ecology and the environment
    • 5 Uses of biological resources
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    • 1 The Cell
    • 2 The Origin and Evolution of Life
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2 - Structures and functions in living organisms

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IGCSE Biology - 2a Levels of Organisation

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019


Section 2a Levels of organisation


2.1 describe the levels of organisation in organisms: organelles, cells, tissues, organs and

systems

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New and updated resource for IGCSE 9-1- More practical pages, updated design, concept checker and exam style question for each topic.

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IGCSE Biology - 2b Cell Structure

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019


Section 2b Cell Structure


2.2 describe cell structures, including the nucleus, cytoplasm, cell membrane, cell wall,

mitochondria, chloroplasts, ribosomes and vacuole

2.3 describe the functions of the nucleus, cytoplasm, cell membrane, cell wall,

mitochondria, chloroplasts, ribosomes and vacuole

2.4 know the similarities and differences in the structure of plant and animal cells

2.5B explain the importance of cell differentiation in the development of

specialised cells

2.6B understand the advantages and disadvantages of using stem cells in

medicine

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New and updated resource for IGCSE 9-1- More practical pages, updated design, concept checker and exam style question for each topic.

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IGCSE Biology - 2c Biological Molecules

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017
Section 2c Biological molecules 
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2.7 Identify the chemical elements present in carbohydrates, proteins and lipids (fats and oils).
2.8 Describe the structure of carbohydrates, proteins and lipids as large molecules made up from smaller basic units: starch and glycogen from simple sugars, protein from amino acids, and lipid from fatty acids and glycerol.
2.9 Practical: investigate food samples for the presence of glucose, starch, protein and fat.
2.10 Understand the role of enzymes as biological catalysts in metabolic reactions.
2.11 Understand how temperature changes can affect enzyme function, including changes to the shape of active site.
2.12 Practical: investigate how enzyme activity can be affected by changes in temperature.
2.13 Understand how enzyme function can be affected by changes in pH altering the active site.
2.14B Practical: investigate how enzyme activity can be affected by changes in pH. (In orange)
​
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IGCSE Biology - 2d Movement of substances into and out of cells

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017
Section 2d Movement of substances into and out of cells

2.15 Understand the processes of diffusion, osmosis and active transport by which substances move into and out of cells.
2.16 Understand how factors affect the rate of movement of substances into and out of cells, including the effects of surface area to volume ratio, distance, temperature and concentration gradient.
2.17 Practical: investigate diffusion and osmosis using living and non-living systems.

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IGCSE Biology - 2e Nutrition - Flowering Plants

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019


Section 2e Nutrition - Flowering Plants


2.18 understand the process of photosynthesis and its importance in the conversion of

light energy to chemical energy

2.19 know the word equation and the balanced chemical symbol equation for

photosynthesis

2.20 understand how varying carbon dioxide concentration, light intensity and temperature

affect the rate of photosynthesis

2.21 describe the structure of the leaf and explain how it is adapted for photosynthesis

2.22 understand that plants require mineral ions for growth, and that magnesium ions are

needed for chlorophyll and nitrate ions are needed for amino acids

2.23 practical: investigate photosynthesis, showing the evolution of oxygen from a water

plant, the production

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New and updated resource for IGCSE 9-1- More practical pages, updated design, concept checker and exam style question for each topic.

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IGCSE Biology - 2e Nutrition - Humans

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017
Section 2e - Nutrition - Humans

2.24 Understand that a balanced diet should include appropriate proportions of carbohydrate, protein, lipid, vitamins, minerals, water and dietary fibre.
2.25 Identify the sources and describe the functions of carbohydrate, protein, lipid (fats and oils), vitamins A, C and D, the mineral ions calcium and iron, water and dietary fibre as components of the diet.
2.26 Understand how energy requirements vary with activity levels, age and pregnancy.
2.27 Describe the structure and function of the human alimentary canal, including the mouth, oesophagus, stomach, small intestine (duodenum and ileum), large intestine (colon and rectum) and pancreas.
2.28 Understand how food is moved through the gut by peristalsis.
2.29 Understand the role of digestive enzymes, including the digestion of starch to glucose by amylase and maltase, the digestion of proteins to amino acids by proteases and the digestion of lipids to fatty acids and glycerol by lipases.
2.30 Understand that bile is produced by the liver and stored in the gall bladder.
2.31 Understand the role of bile in neutralising stomach acid and emulsifying lipids.
2.32 Understand how the small intestine is adapted for absorption, including the structure of a villus.
2.33B Practical: investigate the energy content in a food sample.
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IGCSE Biology - 2f Respiration

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019


Section 2f Respiration


2.34 understand how the process of respiration produces ATP in living organisms

2.35 know that ATP provides energy for cells

2.36 describe the differences between aerobic and anaerobic respiration

2.37 know the word equation and the balanced chemical symbol equation for aerobic

respiration in living organisms

2.38 know the word equation for anaerobic respiration in plants and in animals

2.39 practical: investigate the evolution of carbon dioxide and heat from respiring seeds or

other suitable living organisms


New and updated resource for IGCSE 9-1- More practical pages, updated design, concept checker and exam style question for each topic.

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IGCSE Biology - 2g Gas Exchange - Humans

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019


Section 2g Gas Exchange - Humans


  • 2.46 describe the structure of the thorax, including the ribs, intercostal muscles, diaphragm, trachea, bronchi, bronchioles, alveoli and pleural membranes
  • 2.47 understand the role of the intercostal muscles and the diaphragm in ventilation
  • 2.48 explain how alveoli are adapted for gas exchange by diffusion between air in the lungs and blood in capillaries
  • 2.49 understand the biological consequences of smoking in relation to the lungs and the circulatory system, including coronary heart disease
  • 2.50 practical: investigate breathing in humans, including the release of carbon dioxide and the effect of exercise


New and updated resource for IGCSE 9-1- More practical pages, updated design, concept checker and exam style question for each topic.

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IGCSE Biology - 2g Gas Exchange - Flowering Plants

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019


Section 2g Gas Exchange - Flowering Plants


  • 2.40B understand the role of diffusion in gas exchange
  • 2.41B understand gas exchange (of carbon dioxide and oxygen) in relation to respiration and photosynthesis
  • 2.42B understand how the structure of the leaf is adapted for gas exchange
  • 2.43B describe the role of stomata in gas exchange
  • 2.44B understand how respiration continues during the day and night, but that thenet exchange of carbon dioxide and oxygen depends on the intensity of light
  • 2.45B practical: investigate the effect of light


New and updated resource for IGCSE 9-1- More practical pages, updated design, concept checker and exam style question for each topic.

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IGCSE Biology - 2h Transport - Humans

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017
Section 2h - Transport - Humans

2.59 Describe the composition of the blood: red blood cells, white blood cells, platelets and plasma.
2.60 Understand the role of plasma in the transport of carbon dioxide, digested food, urea, hormones and heat energy.
2.61 Understand how adaptations of red blood cells make them suitable for the transport of oxygen, including shape, the absence of a nucleus and the presence of haemoglobin.
2.62 Understand how the immune system responds to disease using white blood cells, illustrated by phagocytes ingesting pathogens and lymphocytes releasing antibodies specific to the pathogen.
2.63B Understand how vaccination results in the manufacture of memory cells, which enable future antibody production to the pathogen to occur sooner, faster and in greater quantity.
2.64B Understand how platelets are involved in blood clotting, which prevents blood loss and the entry of micro-organisms.
2.65 Describe the structure of the heart and how it functions.
2.66 Explain how the heart rate changes during exercise and under the influence of adrenaline. 2.67 Understand how factors may increase the risk of developing coronary heart disease.
2.68 Understand how the structure of arteries, veins and capillaries relate to their function.
2.69 Understand the general structure of the circulation system, including the blood vessels to and from the heart and lungs, liver and kidneys.
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IGCSE Biology - 2h Transport - Flowering Plants

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017

Section 2h - Transport - Flowering Plants


2.51 Understand why simple, unicellular organisms can rely on diffusion for movement of substances in and out of the cell.

2.52 Understand the need for a transport system in multicellular organisms.

2.53 Describe the role of phloem in transporting sucrose and amino acids between the leaves and other parts of the plant.

2.54 Describe the role of xylem in transporting water and mineral ions from the roots to other parts of the plant.

2.55B Understand how water is absorbed by root hair cells.

2.56B Understand that transpiration is the evaporation of water from the surface of a plant.

2.57B Understand how the rate of transpiration is affected by changes in humidity, wind speed, temperature and light intensity.

2.58B Practical: investigate the role of environmental factors in determining the rate of transpiration from a leafy shoot.


​​New for IGCSE 4BIO1 - More practical pages, updated design, concept checker and exam style question for each topic.

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IGCSE Biology - 2i Excretion - Humans

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017
Section 2i - Excretion - Humans

•2.71 Know the excretory products of the lungs, kidneys and skin (organs of excretion).
•2.72B Understand how the kidney carries out its roles of excretion and osmoregulation.
•2.73B Describe the structure of the urinary system, including the kidneys, ureters, bladder and urethra.
•2.74B Describe the structure of a nephron, including the Bowman’s capsule and glomerulus, convoluted tubules, loop of Henle and collecting duct.
•2.75B Describe ultrafiltration in the Bowman’s capsule and the composition of the glomerular filtrate.
•2.76B Understand how water is reabsorbed into the blood from the collecting duct.
•2.77B Understand why selective reabsorption of glucose occurs at the proximal convoluted tubule.
•2.78B Describe the role of ADH in regulating the water content of the blood.
•2.79B Understand that urine contains water, urea and ions.


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IGCSE Biology - 2i Excretion - Flowering Plants

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017

Section 2h - Excretion - Flowering Plants


•2.70 Understand the origin of carbon dioxide and oxygen as waste products of metabolism and their loss from the stomata of a leaf.


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IGCSE Biology - 2j Coordination and Response - Flowering Plants

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019


Section 2j Coordination and Response - Flowering Plants


  • 2.83 understand that plants respond to stimuli
  • 2.84 describe the geotropic and phototropic responses of roots and stems
  • 2.85 understand the role of auxin in the phototropic response of stems


New and updated resource for IGCSE 9-1- More practical pages, updated design, concept checker and exam style question for each topic.

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IGCSE Biology - 2j Coordination and Response - Humans

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019


Section 2j Coordination and Response - Humans


  • 2.80 understand how organisms are able to respond to changes in their environment
  • 2.81 understand that homeostasis is the maintenance of a constant internal environment, and that body water content and body temperature are both examples of homeostasis
  • 2.82 understand that a co-ordinated response requires a stimulus, a receptor and an effector
  • 2.86 describe how nervous and hormonal communication control responses and understand the differences between the two systems
  • 2.87 understand that the central nervous system consists of the brain and spinal cord and is linked to sense organs by nerves
  • 2.88 understand that stimulation of receptors in the sense organs sends electrical impulses along nerves into and out of the central nervous system, resulting in rapid responses
  • 2.89 understand the role of neurotransmitters at synapses
  • 2.90 describe the structure and functioning of a simple reflex arc illustrated by the withdrawal of a finger from a hot object
  • 2.91 describe the structure and function of the eye as a receptor
  • 2.92 understand the function of the eye in focusing on near and distant objects, and in responding to changes in light intensity
  • 2.93 describe the role of the skin in temperature regulation, with reference to sweating, vasoconstriction and vasodilation
  • 2.94 understand the sources, roles and effects of the following hormones: adrenaline, insulin, testosterone, progesterone and oestrogen
  • 2.95B understand the sources, roles and effects of the following hormones: ADH, FSH and LH


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Section 1 and 2 Presentation Bundle - IGCSE 9-1 Biology

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  • Home
  • Blog
  • IGCSE 9-1
    • 1 The nature and variety of living organisms
    • 2 Structures and functions in living organisms
    • 3 Reproduction and inheritance
    • 4 Ecology and the environment
    • 5 Uses of biological resources
    • IGCSE Revision Resources
  • Pre-U
    • 1 The Cell
    • 2 The Origin and Evolution of Life
    • 4 The Life of Plants
  • A Level
  • IB
  • Book me!
  • Tutoring