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Macromolecules Questions - All Grades

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Grade 9 Macromolecules
How do enzymes help chemical reactions to occur?
  1. They speed up reactions by adding more substrates to react with enzymes
  2. They slow down reactions by increasing the activation energy
  3. They speed up chemical reactions by lowering the activation energy required
  4. They slow down reactions by changing the overall temperature of the reaction
Grade 9 Macromolecules
What is the location where the substrate binds to the enzyme?
  1. neuroreceptor
  2. active site
  3. reception area
  4. receiving site
Grade 9 Macromolecules
What are the reactants called in an enzyme-catalyzed reaction?
  1. Carbon dioxide and water
  2. Inhibitors
  3. Active sites
  4. Substrates
Grade 9 Macromolecules

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Grade 9 Macromolecules
Grade 9 Macromolecules
Which of the following are the building blocks of polymers?
  1. macromolecules
  2. organic molecules
  3. monomers
Grade 9 Macromolecules
Which is NOT considered to be a polysaccharide?
  1. Glycogen
  2. Starch
  3. Sucrose
  4. Cellulose
Grade 9 Macromolecules
Which of the following describes the function of enzymes?
  1. They serve as biological impediments.
  2. They serve as catalysts in biology.
  3. They serve as biological reactants.
  4. All of the above
Grade 9 Macromolecules
Grade 9 Macromolecules
Grade 9 Macromolecules
The "lock and key" model of enzymes explains
  1. that the enzyme's active site must be a shape that is specific to the substrate to which it binds
  2. that any shape for the active site is acceptable when binding to the substrate
  3. that enzymes prefer not to bind with a substrate
  4. that substrates fit perfectly with no enzymes
Grade 9 Macromolecules

This question is a part of a group with common instructions. View group »

Grade 9 Macromolecules
Grade 9 Macromolecules
How can enzymes affect chemical reactions in living systems?
  1. They can provide the substrate needed for the reaction to be carried out
  2. They can affect reaction rates
  3. They can absorb water during the formation of polymers
  4. They can combine with water to produce gaseous wastes
Grade 9 Macromolecules
Enzymes are part of which category of organic compounds?
  1. starches
  2. carbohydrates
  3. lipids
  4. proteins
Grade 9 Macromolecules
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