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Tenth Grade (Grade 10) Macromolecules Questions

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Grade 10 Macromolecules
Which macromolecules are the primary energy source for organisms?
  1. nucleic acids
  2. proteins
  3. carbohydrates
  4. lipids
Grade 10 Macromolecules
Structural Formula - Carbon Ring Glucose
The glucose molecule is a monomer for which class of macromolecules?
  1. carbohydrates
  2. lipids
  3. proteins
  4. nucleic acids
Grade 10 Macromolecules
Grade 10 Macromolecules
Grade 10 Macromolecules
Proteins are made of
  1. fatty acids.
  2. nucleotides.
  3. amino acids.
  4. sugars.
Grade 10 Macromolecules
Which macromolecule functions in quick energy for an organism?
  1. protein
  2. nucleic acid
  3. lipid
  4. carbohydrate
Grade 10 Macromolecules
Enzymes in your body act as catalysts. Thus, the role of enzymes is to
  1. help you breathe.
  2. increase the rate of chemical reactions.
  3. inhibit chemical reactions.
  4. decrease the rate of chemical reactions.
Grade 10 Macromolecules
Grade 10 Macromolecules
Which statement describes a catalyst?
  1. It speeds up a chemical reaction.
  2. It slows down a chemical reaction.
  3. It causes an inhibition.
Grade 10 Macromolecules
What molecules play many key roles in the building of proteins and can act as enzymes?
  1. phospholipids
  2. ribonucleic acid (RNA)
  3. deoxyribonucleic acid (DNA)
  4. waxes
Grade 10 Macromolecules
What type of macromolecule is a polysaccharide?
  1. protein
  2. nucleic acid
  3. carbohydrate
  4. steroid
  5. fat
Grade 10 Macromolecules
All organic molecules are based on the element of
  1. carbon.
  2. hydrogen.
  3. sulfur.
  4. nitrogen.
Grade 10 Macromolecules
With an enzyme the activation energy is
  1. lowered.
  2. raised.
  3. not affected.
Grade 10 Macromolecules
An enzyme's activation energy is
  1. heat energy.
  2. a substrate.
  3. the energy needed to cause a chemical reaction.
Grade 10 Macromolecules
What is one use of glucose?
  1. to power photosynthesis
  2. to make cellulose in cell walls
  3. to make cell membranes
  4. to capture sunlight
Grade 10 Macromolecules
Grade 10 Macromolecules
Large organic molecules are called
  1. polymers.
  2. carbohydrates.
  3. micromolecules.
  4. macromolecules.
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