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Macromolecules Questions - All Grades

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Grade 12 Macromolecules
Enzymes and some hormones are examples of
  1. proteins.
  2. carbohydrates.
  3. lipids.
  4. nucleic acids.
Grade 12 Macromolecules
How are enzymes denatured?
  1. water
  2. pH
  3. temperature
  4. temperature and pH
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 12 Macromolecules
All are properties of water except
  1. adhesion.
  2. cohesion.
  3. heat capacity.
  4. enzyme ability.
Grade 9 Macromolecules
Glucose and fructose are examples of
  1. double sugars.
  2. disaccharides.
  3. single sugars.
  4. polysaccharides.
Grade 10 Macromolecules
An enzyme speeds up a reaction by
  1. absorbing energy.
  2. lowering the activation energy.
  3. raising the activation energy.
  4. releasing energy.
Grade 10 Macromolecules
Nucleic acids are made of
  1. sugars.
  2. fatty acids.
  3. nucleotides.
  4. amino acids.
Grade 7 Macromolecules
Which macromolecules do not dissolve in water?
  1. proteins
  2. lipids
  3. carbohydrates
  4. nucleic acids
Grade 10 Macromolecules
This type of lipid is responsible for sending signals between cells.
  1. oil
  2. enzyme
  3. hormone
  4. starch
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 10 Macromolecules
Large organic molecules are called
  1. polymers.
  2. carbohydrates.
  3. micromolecules.
  4. macromolecules.
Grade 12 Macromolecules
Carbohydrates include
  1. fructose.
  2. starch.
  3. polysaccharides.
  4. all of the above
Grade 9 Macromolecules
Which pair is a monomer with its correct associated macromolecule?
  1. monosaccharide, lipid
  2. fatty acid, protein
  3. nucleotide, nucleic acid
  4. amino acid, carbohydrate
Grade 9 Macromolecules
Which is NOT a polysaccharide?
  1. glycogen
  2. starch
  3. sucrose
  4. cellulose
Grade 8 Macromolecules
The substances that make up body proteins are
  1. nutrients.
  2. carbohydrates.
  3. amino acids.
  4. minerals.
Grade 7 Macromolecules
Proteins that control chemical activities are
  1. enzymes.
  2. bile.
  3. pepsin.
  4. nutrients.
Grade 9 Macromolecules
DNA is a
  1. carbohydrate.
  2. fatty acid.
  3. lipid.
  4. nucleic acid.
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