Aqa Biology Paper 1 With Best Solutions

AQA BIOLOGY PAPER 1 WITH BEST SOLUTIONS limiting factors - ANSWER-limit the rate of a reaction, for example photosynthesis 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 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