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Final Exam -- Final Exam Review / Practice -- Practice Exam Answer Key

Practice Exam

Multiple Choice
Please answer the following questions, then check your answers using the answer key provided.

  1. Biology is the study of
    1. energy.
    2. life.
    3. chemicals.
    4. technology.

  2. All living things __________ to make more living things.
    1. reproduce
    2. develop
    3. grow
    4. adapt

  3. Which statement is incorrect? As an organism develops,
    1. it produces more of its own kind.
    2. it takes on the characteristics that identify it as a member of a particular species.
    3. it's amount of living material increases.
    4. different parts grow at different rates.

  4. A scientific explanation of known facts arrived at through repeated testing over time is a(n)
    1. theory.
    2. observation.
    3. natural law.
    4. experiment.

  5. Carbon dioxide in the atmosphere enters the biotic parts of the biosphere through
    1. burning of forests.
    2. photosynthesis.
    3. combustion of fossil fuels.
    4. All of the above

  6. An ecologist who studies how several species in an area interact is interested in the biological organization called a(n)
    1. organism.
    2. population.
    3. community.
    4. ecosystem.

  7. Population control factors whose effects increase as the size of the population increases are
    1. abiotic factors.
    2. density-dependent factors.
    3. limiting factors.
    4. density-independent factors.

  8. Topsoil is not a renewable resource because
    1. it is available in only limited amounts.
    2. it is recycled by natural processes.
    3. it takes several generations to replace.
    4. once it is used up, no more will be available.

  9. Which of the following compounds may be polymers?
    1. carbohydrates
    2. nucleic acids
    3. proteins
    4. All of the above

  10. Which of these represents a formula for a chemical compound?
    1. H
    2. C
    3. P
    4. H2O

  11. Water dissolves many ionic and molecular compounds because of its
    1. ionic bonding.
    2. polarity.
    3. covalent bonding.
    4. hydrogen bonding.

  12. In a typical animal cell, the cytoplasm occupies
    1. almost all the volume.
    2. a little more than half of the volume.
    3. one-quarter of the volume.
    4. a small part of the volume.

  13. The cell walls of multicellular plants are composed mainly of
    1. cellulose.
    2. chitin.
    3. pectin.
    4. vacuoles.

  14. If a cell is placed in salt water, water leaves the cell by
    1. active transport.
    2. osmosis.
    3. diffusion.
    4. phagocytosis.

  15. The structure most responsible for maintaining cell homeostasis is the
    1. cytoplasm.
    2. mitochondria.
    3. cell wall.
    4. plasma membrane.

  16. A green pigment that traps energy from sunlight is
    1. carotenoid.
    2. ATP.
    3. chlorophyll.
    4. glucose.

  17. In respiration, the final electron acceptor in the electron transport chain is
    1. oxygen.
    2. ATP.
    3. hydrogen ions.
    4. H2O.

  18. A gene is a segment of DNA that controls the production of
    1. carbohydrates.
    2. microtubules.
    3. centromeres.
    4. proteins.

  19. The longest phase of the cell cycle is
    1. prophase.
    2. interphase.
    3. metaphase.
    4. mitosis.

  20. The __________ produced by each parent are shown along the sides of a Punnett square.
    1. zygotes
    2. offspring
    3. gametes
    4. hybrids

  21. Which of the following describes an organism that has the genotype Bb?
    1. homozygous
    2. heterozygous
    3. inbreed
    4. All of the above

  22. A dog's phenotype can be determined by
    1. looking at the dog's parents.
    2. examining the dog's chromosomes.
    3. mating the dog and examining its offspring.
    4. looking at the dog.

  23. The gamete that contains genes contributed by the mother is
    1. the sperm.
    2. an egg.
    3. diploid.
    4. dominant.

  24. The type of inheritance shown when a red-flowering plant is crossed with a white-flowering plant and only pink-flowering plants are produced is
    1. inbreeding.
    2. incomplete dominance.
    3. polygenic inheritance.
    4. codominance.

  25. Royal hemophilia is the result of __________ inheritance.
    1. multiple allelic
    2. polygenic
    3. sex-linked
    4. simple dominant

  26. Most human disorders are caused by the expression of
    1. recessive alleles.
    2. two dominant alleles.
    3. one dominant allele.
    4. sex-linked heredity.

  27. The effort to completely map and sequence the human genome will likely result in knowing the sequence of the approximately __________ genes on the 46 human chromosomes.
    1. 46
    2. 10,000
    3. 100,000
    4. 3 billion

  28. Which of the following fossils are not found in sedimentary rock?
    1. imprints
    2. frozen mammoths
    3. amber
    4. petrified wood

  29. The founder of modern evolution theory is considered to be
    1. Charles Darwin.
    2. Alexander Oparin.
    3. Stephen Jay Gould.
    4. Lynn Margulis.


  1. the gradual change in the characteristics of a species over time

  2. the living and nonliving factors in an organism's surroundings

  3. any structure, behavior, or internal process that enables an organism to better survive in an environment

  4. an organism's tendency to maintain a stable internal environment

  5. the series of changes that an organism undergoes during its lifetime

  6. the process whereby an organism produces more of its own kind
  1. development

  2. adaptation

  3. homeostasis

  4. evolution

  5. reproduction

  6. environment

Check your answers with the answer key.

Note to the Student: This sample test is provided to give you an idea of the form that the actual examination will take and to give you an opportunity for practice. You should be warned that the actual examination will be longer and will cover all the material in the course.