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Ninth Grade (Grade 9) Biology Questions

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Grade 9 Macromolecules
Grade 9 Biotic and Abiotic
Grade 9 Cell Structure and Function
If a cell contains a nucleus, it must be a(n)                 .
  1. plant cell
  2. eukaryotic cell
  3. animal cell
  4. prokaryotic cell
Grade 9 Macromolecules
What is the place called where the substrate will bind to the enzyme?
  1. neuroreceptor
  2. active site
  3. reception area
  4. receiving site
Grade 9 Biogeochemical Cycles
What is the recycling of chemical elements throughout an ecosystem called?
  1. Energy
  2. Phosphorous Cycle
  3. Biogeochemical Cycle
  4. Tropic Level
Grade 9 Cell Structure and Function
Grade 9 Macromolecules
What is(are) the reactant(s) called in an enzyme catalyzed reaction?
  1. carbon dioxide and water
  2. inhibitor
  3. active site
  4. substrate
Grade 9 Macromolecules
An enzyme will                          if the pH or temperature is not optimal.
  1. catalyze more reactions
  2. synthesize
  3. denature
  4. become angry and hostile
Grade 9 Macromolecules
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Macromolecules
Grade 9 Cell Structure and Function
Which of the following explains why a cell's size is limited?
  1. volume increases faster than surface area
  2. surface area increases faster than volume
  3. homeostasis is distrupted by a cell that is too large
  4. both A and C
Grade 9 Macromolecules
These are the building clocks of polymers.
  1. macromolecules
  2. organic molecules
  3. monomers
  4. legos
Grade 9 Biochemistry
Which are the four most abundant elements in living cells?
  1. carbon, oxygen, nitrogen, sulfur
  2. carbon, oxygen, hydrogen, nitrogen
  3. carbon, oxygen, sulfur, phosphorus
  4. carbon, sulfur, hydrogen, magnesium
Grade 9 Botany
The phloem is vascular tissue that does what?
  1. consists of dead tubular cells
  2. transports sugar from leaves to all parts of the plant
  3. is present only in stems
  4. transports water from roots to leaves
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