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Ninth Grade (Grade 9) Macromolecules Questions

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Grade 9 Macromolecules
Phospholipids are the primary component of
  1. cell membranes.
  2. cell walls.
  3. ribosomes.
  4. steroids.
Grade 9 Macromolecules
The substrate binds to the enzyme at the
  1. neuroreceptor.
  2. active site.
  3. reception area.
  4. receiving site.
Grade 9 Macromolecules

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Grade 9 Macromolecules
The reactants in an enzyme-catalyzed reaction are called the
  1. active sites.
  2. elements.
  3. inhibitors.
  4. substrates.
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
The energy needed to start a chemical reaction is called the
  1. lightning.
  2. heat energy.
  3. reaction energy.
  4. activation energy.
Grade 9 Macromolecules
Glucose and fructose are examples of
  1. double sugars.
  2. disaccharides.
  3. single sugars.
  4. polysaccharides.
Grade 9 Macromolecules
Grade 9 Macromolecules
Grade 9 Macromolecules
Which is NOT a polysaccharide?
  1. glycogen
  2. starch
  3. sucrose
  4. cellulose
Grade 9 Macromolecules
Which pair is a macromolecule with its correct function?
  1. nucleic acid, store short-term energy
  2. lipid, store long-term energy
  3. carbohydrate, transport molecules across membranes
  4. protein, store genetic information
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

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