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Eleventh Grade (Grade 11) Macromolecules Questions

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Grade 11 Macromolecules
Any protein is an enzyme.
  1. True
  2. False
Grade 11 Macromolecules
The "backbone" of biological molecules is
  1. nitrogen.
  2. carbon.
  3. oxygen.
  4. hydrogen.
Grade 11 Macromolecules
A protein catalyst that holds significance for living cells is a(n)
  1. feedback activator.
  2. enzyme.
  3. nutrient.
  4. feedback inhibitor.
  5. metabolite.
Grade 11 Macromolecules
Define organic molecules.
  1. molecules of life that are built around chains of carbon atoms
  2. molecules composed of elements besides carbon
  3. molecules of single-subunits (small)
  4. molecules of many subunits (large)
Grade 11 Macromolecules
Covalent bonds hold the DNA bases together.
  1. True
  2. False
Grade 11 Macromolecules
A, T, G, and C are the bases that make up RNA.
  1. True
  2. False
Grade 11 Macromolecules
Which statement correctly describes one characteristic and essential function of carbon?
  1. It serves as a component of water.
  2. It provides the backbone of all organic molecules.
  3. It serves as part of all hydrogen bonds.
  4. All of the above are true.
Grade 11 Macromolecules
Choose the two main functions of nucleic acids.
  1. produce energy
  2. make DNA
  3. produce catalysts
  4. make RNA
Grade 11 Macromolecules
A structural lipid is known as a(n)
  1. fat.
  2. oil.
  3. steroid.
  4. phosphoglyceride.
Grade 11 Macromolecules
Which element does not belong?
  1. polypeptide
  2. amino acids
  3. protein
  4. pH level
Grade 11 Macromolecules
The general formula for carbohydrates is CHO.
  1. True
  2. False
Grade 11 Macromolecules
Choose ALL the functions of lipids.
  1. producing cholesterol
  2. producing proteins
  3. producing wax for plants to keep them from dehydrating
  4. producing hormones
Grade 11 Macromolecules
Which statement does not characterize enzymes?
  1. They are not used up in a reaction.
  2. They produce quick energy used in making organelles.
  3. They combine with substrates.
  4. They speed up the rate of a reaction.
Grade 11 Macromolecules
Which is not a nitrogenous base?
  1. cytosine
  2. thymine
  3. adenine
  4. threosine
Grade 11 Macromolecules
Amino acids are held together with peptide bonds.
  1. True
  2. False
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