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Infection and response
Organisation
Cell biology
Biological molecules
Homeostasis and response
Responding to change (a2 only)
Energy transfers (a2 only)
The control of gene expression (a-level only)
Substance exchange
Bioenergetics
Genetic information & variation
Inheritance, variation and evolution
Genetics & ecosystems (a2 only)
Ecology
Cells
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1f industrialisation and the people: britain, c1783-1885
1c the tudors: england, 1485-1603
Britain & the wider world: 1745 -1901
Inter-war germany
World war one
2n revolution and dictatorship: russia, 1917-1953
World war two & the holocaust
1l the quest for political stability: germany, 1871-1991
The cold war
2j america: a nation divided, c1845-1877
Medieval period: 1066 -1509
The fight for female suffrage
2m wars and welfare: britain in transition, 1906-1957
2d religious conflict and the church in england, c1529-c1570
Britain: 1509 -1745
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03/06/2023
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Drugs & Alcohol • depressants - slows down the function of the central nervous system. • hallucinogens - affect your senses and change the way you see, hear, taste, smell or feel things. • stimulants - speed up the function of the central nervous system. -Recreational drug- use is the use of one or more psychoactive drugs to induce an altered state of consciousness either for pleasure or for some other casual purpose or pastime. When a psychoactive drug enters the user's body, it induces an intoxicating effect. -medicinal drug- a substance or combination of substances that is intended to treat, prevent or diagnose a disease, or to restore, correct or modify physiological functions by exerting a pharmacological, immunological or metabolic action. -Illegal drugs are drugs which a person is not allowed to own or use by law. Too much alcohol can lead to high blood pressure, heart disease, stroke, liver disease, and digestive problems. Cancer of the breast, mouth, throat, esophagus, voice box, liver, colon, and rectum. Weakening of the immune system, increasing the chances of getting sick. Learning and memory problems, including dementia and poor school performance. Ethanol - Alcohol contains the drug ' Ethanol'. The drug is absorbed into your bloodstream and goes to the liver. The drug is broken down in the stomach Alcoholic -...
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If people drink alcohol regularly they may need to drink more to feel the same effects. People who have an addiction to alcohol are called 'Alcoholics The amount of units of alcohol an over 18 should drink a day and week is half Alcohol has a short term effect on the brain and a long term effect on the liver Alcohol contains a drug called ethanol and is a depressant which slows down the function of the central nervous system. Alcohol is a recreational drug and the withdrawal symptoms are: Hand tremors ('the shakes') - Sweating - A pulse rate above 100 beats per minute - Nausea - Vomiting - Headaches - Loss of appetite Depression - Anxiety - Irritability - Restlessness - Insomnia (difficulty sleeping)