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Ninth Grade (Grade 9) Chemistry Questions

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Grade 9 Biochemical Pathways
Grade 9 Macromolecules
How do enzymes help chemical reactions to occur?
  1. They speed up reactions by adding more substrates to react with enzymes
  2. They slow down reactions by increasing the activation energy
  3. They speed up chemical reactions by lowering the activation energy required
  4. They slow down reactions by changing the overall temperature of the reaction
Grade 9 Biochemical Pathways
Which of the following are typically 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 are typically 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 correctly describes the purpose of photosynthesis?
  1. To release energy by decomposing glucose
  2. To store energy in the form of carbon dioxide
  3. To use sunlight energy to make sugars
  4. To create water for hydration
Grade 9 Biochemical Pathways
Grade 9 Macromolecules
What is the location where the substrate binds to the enzyme?
  1. neuroreceptor
  2. active site
  3. reception area
  4. receiving site
Grade 9 Macromolecules
What are the reactants called in an enzyme-catalyzed reaction?
  1. Carbon dioxide and water
  2. Inhibitors
  3. Active sites
  4. Substrates
Grade 9 Macromolecules

This question is a part of a group with common instructions. View group »

Grade 9 Macromolecules
Grade 9 Biochemical Pathways
The process carried out by yeast that causes bread dough to rise is called
  1. alcoholic fermentation
  2. cellular respiration
  3. lactic acid fermentation
  4. mitosis
Grade 9 Biochemical Pathways
Grade 9 Biochemical Pathways
Photosynthesis is an instance of
  1. homeostasis
  2. reproduction
  3. metabolism
  4. growth & development
  5. cell structure
Grade 9 Macromolecules
Which of the following are the building blocks of polymers?
  1. macromolecules
  2. organic molecules
  3. monomers
Grade 9 Macromolecules
Grade 9 Macromolecules
Which is NOT considered to be a polysaccharide?
  1. Glycogen
  2. Starch
  3. Sucrose
  4. Cellulose
Grade 9 Macromolecules
Grade 9 Macromolecules
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