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BIOLOGY Y11 Patterns in Nature Part II CLOZE PASSAGE No 1 Body systems Complete the following sentences using appropriate words or short phrases a) Reproduction that involves 1 parent and produces identical offspring Asexual b) The process in our body that changes large molecules into smaller molecules Digestion c) Biological catalysts Enzymes d) The tube that joins the mouth to the anus Alimentary canal e) The enzyme present in saliva Salivary amylase f) Name the substrate for this enzyme Starch g) A muscular organ with a pH = 3.5 Stomach h) Name the enzyme present in the stomach Pepsin or protease i) Stores bile Gall bladder j) The first part of the small intestine duodenum k) Responsible for the reabsorption of water and dissolved minerals Large intestines l) Incisors The teeth responsible for cutting m) An organism that eats both plant and animal Omnivore n) The enzyme responsible for making junket renin o) The substrate that this enzyme acts upon Milk protein p) An experiment that you carry out yourself is called a ……………………investigation First hand q) A variable that is measured in any experiment Dependent r) A cow is classed as a ………………. fermenter Fore gut s) The organ responsible for digestion of cellulose in rats Caecum t) During dissections organs that are red in colour are rich in Blood u) The organ responsible for exchange of gases in fish Gills v) Human lungs have a large …………………… Surface area w) The tube leading to the lungs is called the ……………… Trachea x) Branching from this tube are the ………………….. Bronchi y) The small sacs where gaseous exchange occurs in the lungs Alveoli z) Amphibians use this organ as a respiratory surface Skin