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Tenth Grade (Grade 10) Biochemistry Questions

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Grade 10 Macromolecules
An organic compound made of sugar molecules is a
  1. carbohydrate.
  2. lipid.
  3. protein.
  4. nucleic acid.
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
What type of macromolecules are the enzymes found in our bodies?
  1. lipids
  2. carbohydrates
  3. proteins
  4. nucleic acids
Grade 10 Macromolecules
Carbohydrates are made of which 3 elements?
  1. nitrogen, oxygen, and hydrogen
  2. carbon, hydrogen, and oxygen
  3. sulfur, hydrogen, and oxygen
  4. nitrogen, phosphorus, and oxygen
Grade 10 Macromolecules
Nucleic acids are made of
  1. sugars.
  2. fatty acids.
  3. nucleotides.
  4. amino acids.
Grade 10 Macromolecules
Grade 10 Macromolecules
Grade 10 Macromolecules
Large organic molecules are called
  1. polymers.
  2. carbohydrates.
  3. micromolecules.
  4. macromolecules.
Grade 10 Macromolecules
Polymers are built from smaller subunits called
  1. monomers.
  2. macromolecules.
  3. electrons.
Grade 10 Macromolecules
Grade 10 Macromolecules
Which of the following macromolecules holds genetic information?
  1. nucleic acids
  2. carbohydrates
  3. lipids
  4. proteins
Grade 10 Macromolecules
Grade 10 Biochemical Pathways
Grade 10 Biochemical Pathways
Grade 10 Biochemical Pathways
What are the products of cellular respiration?
  1. carbon dioxide
  2. water
  3. energy
  4. all of the above
Grade 10 Biochemical Pathways
Oxygen is released during what part of photosynthesis?
  1. light reactions
  2. Calvin cycle
  3. Kreb's cycle
  4. glycolysis
Grade 10 Biochemical Pathways
The process of cellular respiration
  1. occurs only in animals.
  2. is performed only by organisms that cannot perform photosynthesis.
  3. occurs in all organisms.
  4. converts chemical energy in food to usable energy (ATP) in all organisms.
Grade 10 Macromolecules
Which best describes carbohydrates?
  1. proteins made up of monomers
  2. macromolecules that serve as building materials
  3. macromolecules that make up cell membranes
  4. organic molecules that are made up of sugar molecules
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