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Biology Questions - All Grades

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Grade 9 Macromolecules
Phospholipids are the primary component of
  1. cell membranes.
  2. cell walls.
  3. ribosomes.
  4. steroids.
Grade 9 Macromolecules
The substrate binds to the enzyme at the
  1. neuroreceptor.
  2. active site.
  3. reception area.
  4. receiving site.
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
Grade 9 Biochemical Pathways
Grade 10 Macromolecules
Grade 9 Macromolecules
The reactants in an enzyme-catalyzed reaction are called the
  1. active sites.
  2. elements.
  3. inhibitors.
  4. substrates.
Grade 9 Biotic and Abiotic
Grade 9 Biochemical Pathways
Which statement describes cellular respiration?
  1. The process of decomposing 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
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 10 Macromolecules
Grade 10 Macromolecules
Which of the following macromolecules holds genetic information?
  1. nucleic acids
  2. carbohydrates
  3. lipids
  4. proteins
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 Macromolecules
The energy needed to start a chemical reaction is called the
  1. lightning.
  2. heat energy.
  3. reaction energy.
  4. activation energy.
Grade 10 Macromolecules
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 Biogeochemical Cycles
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
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