End of year science test revision 0.0 / 5 ? SciencePlantsGCSEAQA Created by: Official123Created on: 20-06-17 20:23 What is the digestive system The digestive system is a group of organs that work together to break down food 1 of 32 What happens during digestion During digestion large molecules are broken down into small molecules and pass into the bloodstream 2 of 32 Name the structure that food passes along to reach the stomach Mouth then gullet then stomach then small intestine then large intestine then rectum then anus 3 of 32 What happens in the mouth Food is chewed and mixed with saliva. Teeth help to break the food into smaller chunks 4 of 32 What happens in the stomach Food is mixed with digestive juices and acids 5 of 32 What happens in the small intestine Small molecules of nutrients are absorbed into the blood stream 6 of 32 What happens in the large intestine Water is absorbed back into the body 7 of 32 What happens in the rectum Fences are stored here until they pass out of the body 8 of 32 How does food move along the gut Muscles in the wall of the gut squeeze food along 9 of 32 What are group 1 metals conductors of Electricity and heat 10 of 32 In which way do group 1 metals differ from other metals They have lower melting points than the other metals 11 of 32 State what happens to the boiling point as you move down Group 1 As you move down group 1 the boiling point decreases 12 of 32 Name the gas produced when Group 1 elements react with water Hydrogen gas 13 of 32 What is a food chain A food chain is a diagram that shows what an organism eats 14 of 32 How does a producer eat Photosynthesis 15 of 32 What is a producer normally A type of plant 16 of 32 What does a herbivore eat This is an animal that only eats plants 17 of 32 What is a carnivore A carnivore is an animal that eats other animals 18 of 32 What is a prey A prey is an animal that is eaten by other animals 19 of 32 What is a food web A food web is a set of linked food chains 20 of 32 What is a predator A predator is an animal that eats other animals 21 of 32 What is a pivot The point about which a lever or seesaw balances 22 of 32 State one use of chlorine To destroy deadly bacteria 23 of 32 What is another name for the group 7 elements The halogens 24 of 32 What are the elements in group 7 Fluorine bromine iodine astatine chlorine 25 of 32 What is a current The current is the amount of charge flowing per second 26 of 32 Name the meter that you use to measure current An ammeter 27 of 32 What is the carbon cycle The carbon cycle shows how carbon dioxide enters and leaves the earths atmosphere 28 of 32 Give 2 reasons why carbon dioxide is a vital part of the atmosphere Without it plants cannot make their food. Without it earth would be too cold for life as we know it 29 of 32 Name two processes that add carbon dioxide to the atmosphere Respiration and Combustion 30 of 32 Name two processes that remove carbon dioxide from the atmosphere Photosynthesis and Dissolving 31 of 32 What is an omnivore something that eats everything 32 of 32
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