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Sixth Grade (Grade 6) Biochemistry Questions

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Grade 6 Biochemical Pathways
Which statement about respiration is false?
  1. Plants use carbon dioxide.
  2. Animals produce oxygen.
  3. Plants produce oxygen.
  4. Animals use oxygen.
Grade 6 Biochemical Pathways
Which compound is broken down during cellular respiration to release energy?
  1. ATP
  2. carbon dioxide
  3. glucose
  4. water
Grade 6 Macromolecules
Which kind of sugar provides quick energy?
  1. simple carbohydrates
  2. complex carbohydrates
Grade 6 Macromolecules
A long chain of sugar molecules is a
  1. candy.
  2. glucosio.
  3. carbohydrate.
  4. protein.
Grade 6 Macromolecules
Compounds that contain carbon are inorganic.
  1. True
  2. False
Grade 6 Macromolecules
Plants often store energy in the form of
  1. spores.
  2. starches.
  3. hormones.
  4. carbon dioxide.
Grade 6 Biochemical Pathways
What is the definition of a calorie?
  1. how much energy it takes to heat 1 gram of water 1 degree Celsius
  2. how much fire it takes to burn 1 gram of butter
  3. how much energy it takes to heat 2 grams of water by 3 degrees Celsius
  4. how much heat it takes to boil 1 gram of water
Grade 6 Biochemical Pathways
Which event takes place in BOTH stages of respiration?
  1. Glucose is broken down.
  2. Action takes place in mitochondria.
  3. Oxygen is involved.
  4. Energy is released.
Grade 6 Macromolecules
What is supplied when cells break down proteins?
  1. amino acids
  2. phospholipids
  3. nucleic acids
  4. carbohydrates
Grade 6 Biochemical Pathways
Plants get the oxygen they need from humans.
  1. True
  2. False
Grade 6 Macromolecules
Select two statements that are true about proteins.
  1. They do almost all of the work inside the body.
  2. There are not any of them in the body.
  3. They are polymers.
  4. They are long carbohydrates.
Grade 6 Biochemical Pathways
Fermentation produces a waste product called
  1. lactic acid.
  2. carbon dioxide.
  3. oxygen.
  4. glucose.
Grade 6 Macromolecules
Organisms are made of molecules and
  1. proteins.
  2. amino acids.
  3. compounds.
  4. lipids.
Grade 6 Macromolecules
Which molecule is a source of energy, a store of energy in the body, and can mix with water?
  1. lipid
  2. chlorophyll
  3. nucleic acid
  4. carbohydrate
Grade 6 Macromolecules
What do proteins do?
  1. carry materials throughout the blood
  2. regulate the functions of tissues and organs
  3. repair cells and tissues
  4. all of the above
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