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AQA Biology paper 1 Exam Study Guide Solutions aerobic respiration - ANSWER-an exothermic reaction in which glucose is broken down using oxygen to produce carbon dioxide and water and release energy for the cells anaerobic respiration - ANSWER-an exothermic reaction in which glucose is broken do...

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  • November 10, 2024
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AQA Biology paper 1 Exam Study Guide Solutions


aerobic respiration - ANSWER✔✔-an exothermic reaction in which glucose is broken down using oxygen

to produce carbon dioxide and water and release energy for the cells


anaerobic respiration - ANSWER✔✔-an exothermic reaction in which glucose is broken down in the

absence of oxygen to produce lactic acid in animals and ethanol and carbon dioxide in plants and yeast.

A small amount of energy is transferred for the cells


exothermic reaction - ANSWER✔✔-a reaction that transfers energy to the environment


glycogen - ANSWER✔✔-carbohydrate store in animals


lactic acid - ANSWER✔✔-the end product of anaerobic respiration in animal cells


oxygen debt - ANSWER✔✔-the extra oxygen that must be taken into the body after exercise has stopped

to complete the aerobic respiration of lactic acid


Mitochondria - ANSWER✔✔-Organelle that is the site of respiration


Responses to exercise - ANSWER✔✔-Heart rate increases, Breathing rate increases, glycogen in muscles

is converted to glucose


endothermic reaction - ANSWER✔✔-a reaction that requires a transfer of energy from the environment


glucose - ANSWER✔✔-a simple sugar


limiting factors - ANSWER✔✔-limit the rate of a reaction, for example photosynthesis




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photosynthesis - ANSWER✔✔-the process by which plants make food using carbon dioxide, water, and

light


Reactants for photosynthesis - ANSWER✔✔-water and carbon dioxide


Products of photosynthesis - ANSWER✔✔-glucose and oxygen


Chloroplast - ANSWER✔✔-Site of photosynthesis


white blood cells - ANSWER✔✔-Blood cells that perform the function of destroying disease-causing

microorganisms


Sperm cells - ANSWER✔✔-It has a long tail and a streamlined head to help it swim. There are a lot of

mitochondria in the cell to provide the energy needed. It also carries enzymes in its head to digest

through the egg cell membrane.


light - ANSWER✔✔-energy source for photosynthesis


aorta - ANSWER✔✔-the artery that leaves the heart from the left ventricle and carries oxygenated blood

to the body


arteries - ANSWER✔✔-blood vessels that carry blood away from the heart. They usually carry

oxygenated blood and have a pulse


atria - ANSWER✔✔-the upper chambers of the heart


capillaries - ANSWER✔✔-the smallest blood vessels. They run between individual cells and have a wall

that is only one cell thick


coronary arteries - ANSWER✔✔-the blood vessels that supply oxygenated blood to the heart muscle




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