Practice Quiz

CLEP Biology Practice Exam - Question List

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136. The mold Aspergillus flavus grows on grain. A. flavus produces a toxin that binds to DNA in the bodies of animals that eat the grain. The binding of the toxin to DNA blocks transcription, so it directly interferes with the ability of an animal cell to do which of the following?
  1. transport glucose across the cell membrane into the cytoplasm
  2. produce ATP using energy released from glucose and other nutrients
  3. transfer proteins from the endoplasmic reticulum to Golgi complexes
  4. send protein-building instructions from the nucleus to the cytoplasm and ribosomes
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137. In a mouse population inhabiting a grassland area, a mutation occurs that results in a new coat color allele.Which of the following factors has the greatest effect on whether the new coat color will become more common in the mouse population?
  1. whether abundant food is available in the grassland
  2. whether the new coat color allele is dominant or recessive
  3. whether the rate of reproduction in the mouse population
    is stable
  4. whether the new coat color allele increases the survival of mice in their environment
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138. Capillaries are part of which body system?
  1. skeletal system
  2. nervous system
  3. digestive system
  4. circulatory system
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139. Similar structures are present in the embryos of fish, chickens, and rabbits. In fish, these structures develop into gills, but in chickens and rabbits, they either disappear or develop into other body parts later in embryonic development.Which of the statements below best explains the presence of these structures in the embryos of all three species?
  1. The embryos of the three species are similar in size.
  2. Breathing structures are similar among the young of the three species.
  3. The three species have a common ancestor with these embryonic structures.
  4. The reproductive mechanisms are similar among the adults of the three species.
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140. Which process do the animals in the food web use to convert energy from food into ATP?
  1. cellular respiration
  2. osmosis
  3. photosynthesis
  4. transcription
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