A student wrote some notes about enzymes. She wrote: 'The ...1... of an enzyme is ...2... to an area on the substrate. This area on the substrate can fit into it to form an ...3... complex'. Which words correctly complete gaps 1, 2 and 3? A B C D A О в 1 active site active site shape shape 2 complementary similar complementary similar ၁ မှတ် 3 enzyme-substrate enzyme-product enzyme-product enzyme-substrate

John was not paying attention and accidently placed the 5% starch solution in test tube 9 instead of albumin. After incubation and addition of 5ml Biuret reagent, there was no color change in the solution. Why didn’t the pepsinogen act on the 5% starch solution even though HCL was present? Consider the structure and function of an enzyme in your answer.

9) The diagram below represents events involved as energy is ultimately released from food. Food molecule within digestive system xxx X-XX cool wat Food molecule outside of body x-xx XX-X A) 1 B) 2 The enzyme amylase will affect the breakdown of carbohydrates, but it will not affect the break- down of proteins. The ability of an enzyme molecule to interact with specific molecules is most directly determined by the (1) shapes of the molecules involved (2) number of molecules involved (3) sequence of bases present in ATP (4) amount of glucose present in the cell 6 A^XXXX X Which row in the table below best represents the chain of Xs and letters A and Bin the diagram? X-X-X-X-X-X-X A and B (1) nutrient antibodies (2) nutrient enzymes (3) hemoglobin wastes (4) hemoglobin hormones C) 3 In the human body, oxygen is absorbed by the lungs and nutrients are absorbed by the small intestine. In a single-celled organism, this absorption directly involves the (1) nucleus (2) chloroplasts Portion of…

Condition: heat What molecule is the enzyme, what molecule is the substrate, and what molecules are the products? Enzyme: Substrate: Product: