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Seventh Grade (Grade 7) Biochemistry Questions

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Grade 7 Macromolecules
Four elements that compose macromolecules are
  1. carbon, hydrogen, oxygen, and nitrogen.
  2. oxygen, iron, boron, and zinc.
  3. fats, carbohydrates, vitamins, and minerals.
  4. water, oxygen, fats, and nitrogen.
Grade 7 Biochemical Pathways
How are the processes of photosynthesis and cellular respiration connected?
  1. Both processes begin with oxygen.
  2. Both processes require sunlight.
  3. Each process takes place only in plant cells.
  4. Each process makes the material needed in the other process.
Grade 7 Biochemical Pathways
Light energy, water, and carbon dioxide combine to create glucose and oxygen. What process does this reaction describe?
  1. mitosis
  2. photosynthesis
  3. cellular respiration
  4. none of the above
Grade 7 Biochemical Pathways
What do producers release as a result of photosynthesis?
  1. hydrogen
  2. nitrogen
  3. oxygen
  4. carbon dioxide
Grade 7 Biochemical Pathways
What is the chemical process by which plants use light energy to produce sugars?
  1. chemosynthesis
  2. photosynthesis
  3. cellular respiration
  4. osmosis
Grade 7 Biochemical Pathways
What is the energy-releasing process that does not require oxygen?
  1. photosynthesis
  2. cellular respiration
  3. fermentation
  4. fertilization
Grade 7 Macromolecules
What is the code for a specific amino acid?
  1. a single base
  2. a set of two bases
  3. a group of three bases
  4. two base pairs together
Grade 7 Biochemical Pathways
What happens during photosynthesis?
  1. The cell uses the energy in sunlight to make carbon dioxide.
  2. The cell uses the energy in sunlight to make food.
  3. The cell uses oxygen to make food.
  4. The cell uses glucose to make oxygen.
Grade 7 Biochemical Pathways
Which is the MOST important reason the recycling of carbon is so important to living organisms?
  1. Carbon is needed in soil.
  2. Carbon is needed for fuel combustion.
  3. Carbon is needed to make organic molecules.
  4. Carbon is needed to make coal.
Grade 7 Biochemical Pathways
The process that takes place inside cells and gives the body energy is
  1. respiration.
  2. electrolysis.
  3. breathing.
  4. exhalation.
Grade 7 Biochemical Pathways
What are the products of photosynthesis?
  1. carbon dioxide and water
  2. oxygen and water
  3. carbon dioxide and sugar
  4. oxygen and sugar
Grade 7 Macromolecules
Carbohydrates are a group of compounds made of
  1. amino acids.
  2. nucleotides.
  3. enzymes.
  4. sugars.
Grade 7 Biochemical Pathways
In a typical plant, which factor is NOT necessary for photosynthesis?
  1. chlorophyll
  2. light
  3. oxygen
  4. carbon dioxide
Grade 7 Biochemical Pathways
What happens during photosynthesis?
  1. The cell uses oxygen to make food.
  2. The cell uses the energy in sunlight to make food.
  3. The cell uses glucose to make oxygen.
  4. The cell uses energy in sunlight to make carbon dioxide.
Grade 7 Macromolecules

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

Which macromolecules form when long chains of molecules called nucleotides join together?
  1. proteins
  2. lipids
  3. carbohydrates
  4. nucleic acids
Grade 7 Biochemical Pathways
The sum of all the chemical reactions in the body is
  1. growth.
  2. metabolism.
  3. homeostasis.
  4. development.
Grade 7 Macromolecules
Which macromolecule does not dissolve in water?
  1. carbohydrates
  2. lipids
  3. proteins
  4. nucleic acids
Grade 7 Biochemical Pathways
Photosynthesis can happen anytime.
  1. True
  2. False
Grade 7 Macromolecules
                can cause molecules to join together as well as break apart.
  1. Proteins
  2. Lipids
  3. Enzymes
  4. Ionic compounds
Grade 7 Biochemical Pathways
Almost all the oxygen in our atmosphere has been produced by
  1. heterotrophs.
  2. autotrophs.
  3. single-celled animals.
  4. multicellular animals.
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