Key term
Edexcel GCSE Combined Science Biology 1SC0
Key Concepts in Biology
Topic overviewEukaryotic and prokaryotic cellsSpecialised cells and their adaptationsMicroscopes and magnification calculationsSize, scale and units in cell biologyEnzyme action and denaturationFactors affecting enzyme activityEnzymes in synthesis and digestion, and rate calculationsDiffusion, osmosis and active transportOsmosis in potatoes and percentage change in mass
Cells and Control
Genetics
Topic overviewMeiosis and the formation of gametesDNA structure, genes and the genomeExtracting DNA from fruitAlleles, genotype and phenotypeMonohybrid crosses and sex determinationProbability and ratios from genetic crossesCauses of variation: genes and environmentThe Human Genome ProjectGenetic variation and the effects of mutation
Natural Selection and Genetic Modification
Health, Disease and the Development of Medicines
Topic overviewHealth, disease and susceptibilityPathogens and common infectionsHow pathogens spread, and the virus life cycleSexually transmitted infectionsPhysical barriers and chemical defencesThe immune system, immunisation and herd immunityAntibiotics and developing new medicinesLifestyle factors and non-communicable diseaseTreatments for cardiovascular disease
Plant Structures and Their Functions
Animal Coordination, Control and Homeostasis
Exchange and Transport in Animals
Topic overviewWhy multicellular organisms need exchange surfacesAlveoli and gas exchangeThe blood and its componentsArteries, veins and capillariesThe heart and the circulatory systemCellular respiration as an exothermic reactionAerobic and anaerobic respiration comparedInvestigating the rate of respirationCardiac output, stroke volume and heart rate
Ecosystems and Material Cycles
Animal Coordination, Control and Homeostasis
Type 2 diabetes and body mass
- 2 things to know
- Paper 2
Overview
The cause and risk factors of type 2 diabetes, how it differs from type 1 and is controlled, calculating body mass index and waist to hip ratio and their limits, correlation and cause, and scatter diagrams showing positive, negative or no correlation with lines of best fit.
What you need to know
Answer each one before you reveal it.
Your recallNot started
Key term
What causes type 2 diabetes?
Questions from this subtopic
Each one with the model answer underneath.
- 1
What causes type 2 diabetes?
Model answer
The body's cells stop responding properly to insulin, so glucose is not taken out of the blood.
- 2
Give two risk factors for developing type 2 diabetes.
Model answer
Being obese and taking very little physical exercise.
- 3
How does type 2 diabetes differ from type 1 in terms of insulin production?
Model answer
In type 2 the pancreas still produces insulin, but the body's cells no longer respond to it properly.
- 4
How is type 2 diabetes usually controlled at first?
Model answer
By eating a controlled diet low in sugar and fat, and by taking regular exercise.
- 5
Explain why regular exercise helps a person with type 2 diabetes.
Model answer
Exercise uses up glucose in respiration and helps reduce body mass, which improves how well cells respond to insulin.
- 6
What treatment may be needed if diet and exercise do not control type 2 diabetes?
Model answer
Medication that helps the body use insulin, and in some cases insulin injections.
Other ways to work this
The same content, four other ways.
What is inside Levo
Six ways to work the same material.
Every question in Animal Coordination, Control and Homeostasis, on a schedule.
Attempt a question from memory, write the correct version, then attempt it again. Levo records the jump between your first attempt and your last, and brings each question back on the day you are due to forget it.
Or £46 a year, about £3.83 a month. Cancel anytime.