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Eleventh Grade (Grade 11) Biochemistry Questions

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Grade 11 Biochemical Pathways
The initial step of breaking glucose down is
  1. the Krebs cycle.
  2. glycolysis.
  3. fermentation.
  4. electron transport.
Grade 11 Biochemical Pathways
Which molecule is not found in the chemical equation representing photosynthesis?
  1. cardon dioxide
  2. water
  3. chlorophyll
  4. oxygen
Grade 11 Biochemical Pathways
The main catalyst for photosynthesis is
  1. enzymes.
  2. chlorophyll a.
  3. chlorophyll b.
  4. light.
Grade 11 Biochemical Pathways
Which molecule is not found in the chemical equation representing cellular respiration?
  1. glucose
  2. oxygen
  3. carbon dioxide
  4. ATP
Grade 11 Biochemical Pathways
Which process takes light and changes it into chemical energy that is stored?
  1. cellular respiration
  2. photosynthesis
  3. light-dependent phase reactions
  4. photolysis
Grade 11 Macromolecules

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

Which carbon-based molecules hold genetic information?
  1. nucleic acids
  2. carbohydrates
  3. lipids
  4. proteins
Grade 11 Biochemical Pathways
The light-independent reactions of photosynthesis happen in the
  1. presence of light only.
  2. presence of darkness only.
  3. presence of either light or darkness.
  4. thylakoid membrane.
Grade 11 Biochemical Pathways
In the general equation for photosynthesis, which molecule becomes reduced?
  1. water
  2. glucose
  3. carbon dioxide
  4. oxgen
Grade 11 Biochemical Pathways
Which process does NOT represent a key stage of cellular respiration?
  1. Krebs cycle
  2. glycolysis
  3. Calvin cycle
  4. electron transport chain
Grade 11 Biochemical Pathways
Which statement about glycolysis is false?
  1. Glycolysis can happen in the absence of oxygen.
  2. Glycolysis happens in the mitochondria.
  3. Glycolysis represents the first step of both anaerobic and aerobic respiration.
  4. Glycolysis of one molecule of glucose generates 2 ATP, 2 NADH, and 2 pyruvates.
Grade 11 Macromolecules
Which macromolecule creates alpha helix and beta sheet formations?
  1. carbohydrates
  2. lipids
  3. nucleic acids
  4. proteins
Grade 11 Macromolecules
Which statement best defines organic compounds?
  1. They are compounds that do not contain both carbon and hydrogen.
  2. They are compounds that contain lipids, proteins, and nucleic acids.
  3. They are compounds used for "quick energy."
  4. They are compounds that contain both carbon and hydrogen atoms.
Grade 11 Biochemical Pathways
What reaction occurs in the matrix of the mitochondria and includes FADH2 among its products?
  1. glycolysis
  2. Krebs cycle
  3. oxidative phosphorylation
  4. lactic acid fermentation
  5. chemiosmosis
Grade 11 Macromolecules
The latest technique for the separation, isolation, and purification of an organic compound is                                    .
  1. chromatography
  2. distillation under reduced pressure
  3. differential extraction
  4. fractional crystallization
Grade 11 Macromolecules
Which macromolecule has a monomer known as a monosaccharide?
  1. lipids
  2. nucleic acids
  3. carbohydrates
  4. steroids
Grade 11 Biochemical Pathways
Which process does NOT result in the making of ATP?
  1. oxidative phosphorylation of NADH
  2. Krebs cycle
  3. lactic acid fermentation
  4. glycolysis
Grade 11 Macromolecules
Which statement correctly describes enzymes in general?
  1. They are made up of nucleotides.
  2. They are, with few exceptions, proteins.
  3. They are the key to life.
  4. They are hormones.
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