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Ninth Grade (Grade 9) Chemistry Questions

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Grade 9 Biochemical Pathways
Which statement describes cellular respiration?
  1. The process of breaking down chemical energy stored in bonds into energy that can be used by the cell
  2. The process of creating food for the cell
  3. The process of combining oxygen and water to produce another substance to be transported
  4. The process of making proteins
Grade 9 Macromolecules
Enzymes are critical for biological reactions to occur in an organism. How do enzymes help chemical reactions to take place?
  1. They speed up reactions by adding more substrates
  2. They slow reactions down by increasing the activation energy
  3. They speed up reactions by lowering the activation energy
  4. They slow down reactions by changing the overall temperature
Grade 9 Biochemical Pathways
Grade 9 Biochemical Pathways
Grade 9 Biochemical Pathways
Which of the following accurately describes the products of cellular respiration?
  1. carbon dioxide and water
  2. oxygen and carbon dioxide
  3. water and glucose
  4. glucose and oxygen
Grade 9 Biochemical Pathways
Which of the following accurately describes the products of photosynthesis?
  1. oxygen and carbon dioxide
  2. glucose and oxygen
  3. carbon dioxide and water
  4. water and glucose
Grade 9 Biochemical Pathways
Which of the following accurately describes the purpose of photosynthesis?
  1. Release energy by breaking down glucose
  2. Store energy in the form of carbon dioxide
  3. Use sunlight energy to create sugars
  4. Create water that can hydrate the body
Grade 9 Biochemical Pathways
Which of the following most accurately describes the purpose of cellular respiration?
  1. to breakdown glucose into energy that can be used for cellular functions
  2. to breakdown usable energy into smaller parts
  3. to breakdown different types of substances to be used to build other parts of the cell
  4. all of the above
Grade 9 Macromolecules
Of what are glucose and fructose examples?
  1. double sugars
  2. disaccharides
  3. single sugars
  4. polysaccharides
Grade 9 Periodic Table and Elements
Grade 9 Macromolecules
The enzymes found in our bodies are examples of which macromolecule?
  1. fats
  2. lipids
  3. carbohydrates
  4. proteins
  5. isotopes
Grade 9 Atomic Structure
Which sub-atomic particle has a positive charge
  1. proton
  2. neutron
  3. electron
  4. nucleus
Grade 9 Atomic Structure
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