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AQA A-Level Biology Test with Complete Solution (2024/2025) Graded A+ polymer - - long molecules formed from combinations of many monomers joined together condensation reaction - - a chemical reaction in which two or more molecules join and produces one water molecule hydrolysis reaction - - A chemical reaction that breaks apart a larger molecule by adding a molecule of water isomers - - Compounds with the same chemical formulae but different structures. carbohydrates - - compounds made ...

AQA A Level Biology Test with Complete Solution A+ Rated (verified Answers) 2024/2025 what are killer t-cells? - - - cytotoxic cells - bind to non-self antigens how to killer t-cells work? - - 1. virus attaches to and enters host cell 2. viral DNA causes host cell to express viral antigens on its surface 3. killer t-cells attaches to viral antigens on infected cells 4. killer t-cells induces death of infected cell (apoptosis) what is apoptosis? - - programmed cell death how do killer t-...

AQA A LEVEL BIOLOGY EXAM WITH BEST SOLUTIONS AND CORRECT QUESTIONS AND ANSWERS what are killer t-cells? - ANSWER-- cytotoxic cells - bind to non-self antigens how to killer t-cells work? - ANSWER-1. virus attaches to and enters host cell 2. viral DNA causes host cell to express viral antigens on its surface 3. killer t-cells attaches to viral antigens on infected cells 4. killer t-cells induces death of infected cell (apoptosis) what is apoptosis? - ANSWER-programmed cell death ...

AQA A LEVEL BIOLOGY EXAM WITH BEST SOLUTIONS AND CORRECT QUESTIONS AND ANSWERS what are killer t-cells? - ANSWER-- cytotoxic cells - bind to non-self antigens how to killer t-cells work? - ANSWER-1. virus attaches to and enters host cell 2. viral DNA causes host cell to express viral antigens on its surface 3. killer t-cells attaches to viral antigens on infected cells 4. killer t-cells induces death of infected cell (apoptosis) what is apoptosis? - ANSWER-programmed cell death ...

AQA A LEVEL BIOLOGY EXAM WITH BEST SOLUTIONS AND CORRECT QUESTIONS AND ANSWERS what are killer t-cells? - ANSWER-- cytotoxic cells - bind to non-self antigens how to killer t-cells work? - ANSWER-1. virus attaches to and enters host cell 2. viral DNA causes host cell to express viral antigens on its surface 3. killer t-cells attaches to viral antigens on infected cells 4. killer t-cells induces death of infected cell (apoptosis) what is apoptosis? - ANSWER-programmed cell death ...

AQA A LEVEL BIOLOGY EXAM WITH BEST SOLUTIONS AND CORRECT QUESTIONS AND ANSWERS what are killer t-cells? - ANSWER-- cytotoxic cells - bind to non-self antigens how to killer t-cells work? - ANSWER-1. virus attaches to and enters host cell 2. viral DNA causes host cell to express viral antigens on its surface 3. killer t-cells attaches to viral antigens on infected cells 4. killer t-cells induces death of infected cell (apoptosis) what is apoptosis? - ANSWER-programmed cell death ...

Benedict's test - Answer Which food test is heated in a water bath? Sucrose - Answer Which disaccharide is not a reducing sugar? Test for non-reducing sugars - Answer Add acid. Neutralise. Add Benedicts. Heat. Hydrolysis - Answer Reaction performed by dilute HCl in the non reducing sugar test. Glucose + fructose - Answer During the non-reducing sugar test what is sucrose hydrolysed into? Alpha - Answer Which type of glucose makes up starch?

what are killer t-cells? - Answer - cytotoxic cells - bind to non-self antigens how to killer t-cells work? - Answer 1. virus attaches to and enters host cell 2. viral DNA causes host cell to express viral antigens on its surface 3. killer t-cells attaches to viral antigens on infected cells 4. killer t-cells induces death of infected cell (apoptosis) what is apoptosis? - Answer programmed cell death how do killer t-cells destroy cancer? - Answer - cancerous = mutations - mutations = abn...

polymer - Answer long molecules formed from combinations of many monomers joined together condensation reaction - Answer a chemical reaction in which two or more molecules join and produces one water molecule hydrolysis reaction - Answer A chemical reaction that breaks apart a larger molecule by adding a molecule of water isomers - Answer Compounds with the same chemical formulae but different structures. carbohydrates - Answer compounds made from carbon, hydrogen and oxygen (monosacchar...

Pathogen - Answer A microorganism that causes disease Self - Answer The body's own cells and molecules. Foreign (non-self) - Answer Not your own body's cells and molecules. Antigen - Answer A molecule that triggers an immune response by lymphocytes. Lymphocyte - Answer Type of white blood cell responsible for the immune response. They become activated in the presence of antigens. There are two types: B lymphocytes and T lymphocytes.