Practice Quiz

MTEL Biology Practice Exam - Question List

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16.
Biologically important properties of water such as its cohesion, high specific heat, anomalous phase densities, and role as a solvent can be attributed primarily to the:
  1. Tendency of water molecules to form double bonds.
  2. Hydrogen bonds that form between water molecules.
  3. Relatively low molecular weight of water compared to other liquids.
  4. Ability of water to dissociate into hydrogen and hydroxide ions.
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17.
Saturated fats are best distinguished from unsaturated fats by the fact that saturated fats:
  1. Are more likely to be solid at room temperature.
  2. Contain more cholesterol.
  3. Are more common in plants than in animals.
  4. Contain more double bonds.
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18.
The end of the general belief in the spontaneous generation of life led to the widespread acceptance of which of the following scientific concepts?
  1. Cell theory.
  2. Endosymbiosis.
  3. Natural selection.
  4. Uniformitarianism.
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19.
Which of the following enables plant cells to achieve enough structural rigidity to support the overall plant?
  1. The stacking of thylakoids within the chloroplasts.
  2. The osmotic pressure within the central vacuole.
  3. The facilitated diffusion of proteins across the plasma membrane.
  4. The matrix of polysaccharides in the cytoskeleton.
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20.
Rough endoplasmic reticulum is particularly well developed in cells that:
  1. Secrete proteins or glycoproteins.
  2. Detoxify drugs or poisons.
  3. Support chemiosmosis.
  4. Hydrolyze macromolecules.
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