1) What is a substance called if it speeds up a chemical reaction.? a) reusable b) specific c) catalyst d) fragile 2) With what 3 letters do enzymes typically end? a) -ose b) -ase c) -ese d) -tic 3) Enzymes are an example of a) carbohydrates b) lipids c) proteins d) nucleic acids 4) Which substrate matches the enzyme's active site? a) b) c) d) 5) An enzyme can be used over and over again. a) True b) False 6) How does an enzyme speed up a reaction? a) it heats it up b) it adds more substrates c) it lowers the activation energy d) it raises the activation energy 7) All enzymes break things down. a) True b) False 8) What organelle would contain digestive enzymes? a) vacuole b) nucleus c) mitochondria d) lysosome 9) What can cause a protein to denature? (Pick three) a) high temperatures b) cold temperatures c) high pH d) low pH e) neutral pH 10) What could cause an enzyme to be shaped wrong and not work? (Pick all that apply.) a) denaturation b) gene mutation c) incorrect folding d) oxygen levels in the cell

Enzymes

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