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Seventh Grade (Grade 7) Biochemistry Questions

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Grade 7 Macromolecules
Proteins are polymers formed from                .
  1. lipids
  2. carbohydrates
  3. amino acids
  4. nucleic acids
Grade 7 Biochemical Pathways
Some cells release energy from food molecules using a chemical process called
  1. glycolysis.
  2. fermentation.
  3. photosynthesis.
Grade 7 Macromolecules
RNA and DNA are both types of
  1. nucleic acids.
  2. nuclei.
  3. golgi bodies.
  4. proteins.
Grade 7 Macromolecules
Which element is found in living things?
  1. nitrogen
  2. hydrogen
  3. sulfur
  4. all of the above
Grade 7 Biochemical Pathways
Which is NOT a reactant in the functions of photosynthesis?
  1. water
  2. carbon dioxide
  3. sunlight
  4. glucose
Grade 7 Biochemical Pathways
What are the products of photosynthesis?
  1. oxygen and sugars
  2. carbon dioxide and water
  3. carbon dioxide and sugars
  4. oxygen and water
Grade 7 Biochemical Pathways
Which compound is a reactant of photosynthesis?
  1. carbon dioxide
  2. oxygen
  3. water
  4. a and c
  5. all of the above
Grade 7 Macromolecules
What molecule is used for energy by the cell?
  1. H2O
  2. DNA
  3. ATP
  4. RNA
  5. COOH
Grade 7 Biochemical Pathways
The process of plants making food is
  1. sunlight.
  2. respiration.
  3. water.
  4. photosynthesis.
Grade 7 Macromolecules
The sugar in fruits is an example of a
  1. protein.
  2. simple carbohydrate.
  3. complex carbohydrate.
  4. lipid.
Grade 7 Biochemical Pathways
Organisms use energy to
  1. move materials into and out of cells.
  2. make or break down food.
  3. build cells.
  4. all of the above
Grade 7 Biochemical Pathways
What is the series of chemical reactions that converts the energy in food molecules into ATP?
  1. cellular respiration
  2. photosynthesis
  3. diffusion
  4. facilitated diffusion
Grade 7 Biochemical Pathways
Which process does NOT produce ATP in humans?
  1. Krebs cycle
  2. Alcohol fermentation
  3. Lactic acid fermentation
  4. Glycolysis
Grade 7 Macromolecules
                    contain fewer atoms than organic molecules.
  1. Organic compounds
  2. Inorganic compounds
  3. Elements
  4. Matter
Grade 7 Biochemical Pathways
What is the food that plants produce during photosynthesis?
  1. glucose
  2. chlorophyll
  3. chloroplasts
  4. carbon dioxide
Grade 7 Biochemical Pathways
Because fermentation takes place in the absence of oxygen, fermentation is
  1. aerobic.
  2. anaerobic.
  3. cyclic.
  4. oxygen-rich.
Grade 7 Biochemical Pathways
In addition to light and chlorophyll, photosynthesis requires
  1. water and oxygen.
  2. water and sugar.
  3. oxygen and carbon dioxide.
  4. water and carbon dioxide.
Grade 7 Biochemical Pathways
What is the series of chemical reactions that converts light energy, water, and CO₂ into the food-energy molecule glucose and gives off oxygen?
  1. cellular respiration
  2. photosynthesis
  3. passive transport
  4. active transport
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