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Twelfth Grade (Grade 12) Biology Questions

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Grade 12 Macromolecules
An ATP molecule is made up of                                           .
  1. matrix, inner membrane, outer membrane
  3. adenine, phosphate groups and ribose
  4. proteins, carbohydrates, and nucleic acids
Grade 12 Macromolecules
Grade 12 Macromolecules
Grade 12 Biochemical Pathways
How do enzymes make reactions go faster?
  1. They lower activation energy
  2. They raise the activation energy
  3. They supply extra reactants
  4. They limit the amount products in the reaction
Grade 12 Macromolecules
Carbohydrates include which of the following?
  1. fructose
  2. starch
  3. polysaccharide
  4. all of the other answers
Grade 12 Macromolecules
Which of the following is most likely an enzyme?
  1. maltose
  2. succrose
  3. lipase
  4. taurine
Grade 12 Biochemical Pathways
Which process would require an input of energy?
  1. exergonic reactions
  2. endergonic reactions
  3. hydrolysis
  4. cellular respiration
Grade 12 Nervous and Endocrine Systems
Which system is responsible for the secretion of hormones?
  1. endocrine
  2. integumentary
  3. circulatory
  4. digestive
Grade 12 Macromolecules
Catalase is an enzyme that speeds up which reaction?
  1. breakdown of hydrogen peroxide into oxygen and water
  2. breakdown of lipids in the gut
  3. synthesizing proteins from amino acids
  4. breakdown of lactose in the digestive system
Grade 12 Macromolecules
The function of lipids is                         .
  1. building cell membranes
  2. long term energy
  3. insulation
  4. all of the other answers
Grade 12 Cell Structure and Function
The endoplasmic reticulum functions to                       .
  1. transport materials
  2. destroy old cell parts
  3. make ribosomes
  4. package proteins
Grade 12 Biochemical Pathways
Energy is released from ATP when                             .
  1. a phosphate group is added
  2. amino acids bond to proteins
  3. a phosphate group is removed
  4. it is heated by the sun
Grade 12 Macromolecules
How are enzymes denatured?
  1. Water
  2. pH
  3. Temperature
  4. Temperature and pH
Grade 12 Circulatory and Immune Systems
Grade 12 Cell Structure and Function
Grade 12 Cell Structure and Function
Grade 12 Human Reproduction
What system plays a vital role in the existance of the human species?
  1. Cardiovascular System
  2. Respitory System
  3. Digestive System
  4. Reproductive System
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