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Ninth Grade (Grade 9) Macromolecules Questions

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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
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
An enzyme will                          if the pH or temperature is not optimal.
  1. catalyze more reactions
  2. synthesize
  3. denature
  4. become angry and hostile
Grade 9 Macromolecules
Grade 9 Macromolecules

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Grade 9 Macromolecules
Grade 9 Macromolecules
Glucose and fructose are examples of what?
  1. double sugars
  2. disaccharides
  3. single sugars
  4. polysaccharides
Grade 9 Macromolecules
What are the monomers of lipids?
  1. Amino acids
  2. Simple sugars
  3. Fatty acids and glycerol
  4. Nucleic acids
Grade 9 Macromolecules
The enzymes found in our bodies are examples of which macromolecule?
  1. fats
  2. lipids
  3. carbohydrates
  4. proteins
  5. isotopes
Grade 9 Macromolecules
What are the six most frequently found atoms in living things?
  1. Magnesium, Sodium, Carbon, Oxygen, Potassium, and Silicon
  2. Carbon, Phosphorus, Calcium, Oxygen, Nitrogen, and Hydrogen
  3. Oxygen, Chlorine, Helium, Lithium, Sulfur, and Nitrogen
  4. Hydrogen, Helium, Lithium, Benzene, Boron, and Carbon
Grade 9 Macromolecules
Why must cells produce many different kinds of enzymes?
  1. Enzymes are consumed quickly
  2. Most cellular reactions need a specific, unique enzyme
  3. They need some way to use the protein they consume
  4. Enzymes are not very helpful in speeding up reactions
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
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