HDHS Trilogy B3 Checkpoint quiz: Organisation and the digestive system
Quiz by Alexandra Gill
GCSE (AQA)
Combined Science: Trilogy
English National Curriculum
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14 questions
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- Q1Organs are made up of tissues performing specific functions. Which part of the body is an example of an organ?musclestomachspermepithelial tissue30s4.2.2.1
- Q2The drawing shows the human digestive system. Name the part of the digestive system labelled X.stomachliverlarge intestinepancreas30s4.2.2.1
- Q3Name the elements that lipids are made up of.carbon onlycarbon and hydrogencarbon, hydrogen, oxygen, and nitrogencarbon, hydrogen, and oxygen30s4.2.2.1
- Q4In the digestive system, protein is broken down into which soluble substance?simple sugarsglycerolfatty acidsamino acids30s4.2.2.1
- Q5Which statement about enzymes is true?enzymes are used up during reactionsenzymes can catalyse any reactionenzymes are small moleculesenzymes can help to build larger molecules from lots of smaller ones30s4.2.2.1
- Q6Why are enzymes not active at very high temperatures?the enzymes die at very high temperaturesthe shape of the active site changes at very high temperatureshigh temperature increases the pH, which destroys the enzymethe enzymes and substrate do not collide with each other30s4.2.2.1
- Q7Which is the correct order of organisation from smallest to largest?circulatory system, heart, muscle cell, muscle cellmuscle cell, muscle tissue, heart, circulatory systemheart, muscle cell, muscle tissue, circulatory systemmuscle tissue, muscle cell, circulatory system, heart30s4.2.2.1
- Q8The drawing shows the human digestive system. What is the function of the part of the digestive system labelled X?the absorption of soluble food moleculesthe absorption of waterthe release of digestive enzymesthe storage of bile30s4.2.2.1
- Q9The table shows the pH and temperature of the stomach and the small intestine. Which row shows the correct temperature and pH?DCCAB30sRP.4
- Q10Food tests were carried out on an unidentified sample of food. The results are shown in the table. Which substances does the food sample contain?starch, protein, and lipidsreducing sugar onlystarch and lipidsprotein and lipids30sRP.3
- Q11Which statement about bile is true?bile chemically breaks down fatsbile physically breaks down fatsbile is stored is the stomachbile has a very acidic pH30s4.2.2.1
- Q12Coeliac disease causes inflammation of the small intestine and the villi in the small intestine become flattened. What effect will this have on digestion?The surface area of the small intestine is increased, decreasing the rate of diffusion of soluble substances into the bloodstream.The surface area of the small intestine is decreased, increasing the rate of diffusion of soluble substances into the bloodstream.The surface area of the small intestine is decreased, decreasing the rate of diffusion of soluble substances into the bloodstream.The surface area of the small intestine is increased, increasing the rate of diffusion of soluble substances into the bloodstream.30s4.2.2.1
- Q13The graph shows an enzyme's activity at different pHs. Where in the digestive system would this enzyme be likely to be found?stomachsmall intestinemouthpancreas30sRP.4
- Q14Which process would enzymes be involved in?the synthesis of proteinsthe exchange of gases across the wall of the alveolithe absorption of dissolved food molecules across the villithe movement of water from the soil into the root hair cell30s4.2.2.1
