Free Michigan Test for Teacher Certification Biology Practice Questions

Sample Practice Questions

Try these 10 sample questions from the Michigan Test for Teacher Certification Biology practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

1. 1A biologist randomly assigns identical seedlings to fertilizer and no-fertilizer groups, keeping light and water equal. What is the purpose of the no-fertilizer group?

   1. A.To estimate the effect of fertilizer treatmentCorrect answer: A
   2. B.To increase the amount of fertilizer applied
   3. C.To identify the chemical composition of soil
   4. D.To eliminate genetic variation among seedlings

   Explanation: The publisher states, "The control group contains every feature of the experimental group except it is not given the manipulation that the researcher hypothesizes." The untreated group supplies the comparison needed to isolate the fertilizer effect; it does not change dose, assay soil, or remove genetic variation.

   Reference: OpenStax Biology 2e — The Science of Biology — 1.1, Testing a Hypothesis

2. 2Which feature most directly distinguishes a typical eukaryotic cell from a prokaryotic cell?

   1. A.A membrane-bound nucleusCorrect answer: A
   2. B.A surrounding plasma membrane
   3. C.Ribosomes that synthesize proteins
   4. D.Genetic information carried by DNA

   Explanation: OpenStax states, "Unlike prokaryotic cells, eukaryotic cells have: 1) a membrane-bound nucleus;" Membrane enclosure of the nucleus is the distinguishing feature; the other components occur in both groups.

   Reference: OpenStax Biology 2e — 4.3, Eukaryotic Cells

3. 3For a single gene in a diploid organism, what does Mendel's law of segregation predict about gametes from an Aa individual?

   1. A.All carry both A and a
   2. B.Half carry A and half carry aCorrect answer: B
   3. C.All carry A because it is dominant
   4. D.Most carry a because it is recessive

   Explanation: OpenStax states, "paired unit factors (genes) must segregate equally into gametes" Each gamete receives one allele, and the two alternatives occur equally; dominance affects phenotype rather than this segregation.

   Reference: OpenStax Biology 2e — 12.3, Equal Segregation of Alleles

4. 4In the three-domain system, which domain includes fungi, plants, and animals?

   1. A.Archaea
   2. B.Bacteria
   3. C.EukaryaCorrect answer: C
   4. D.Protista

   Explanation: OpenStax states, "The third domain contains the eukaryotes" Eukarya includes these eukaryotic groups. Bacteria and Archaea are prokaryotic domains; Protista is not a domain.

   Reference: OpenStax Biology 2e — 1.2, Diversity of Life

5. 5A fungus obtains sugars from an alga while providing the alga protection and access to nutrients. Which interaction is described?

   1. A.Parasitism
   2. B.Competition
   3. C.MutualismCorrect answer: C
   4. D.Predation

   Explanation: OpenStax states, "mutualism, where two species benefit from their interaction." Both partners benefit; parasitism and predation harm one, and competition imposes costs on both.

   Reference: OpenStax Biology 2e — 45.6, Mutualism

6. 6Which proposed explanation is a scientifically testable hypothesis?

   1. A.Seed growth is guided by an undetectable purpose
   2. B.Seed growth increases when soil nitrogen increasesCorrect answer: B
   3. C.Seed growth is beautiful when viewed in sunlight
   4. D.Seed growth deserves greater moral appreciation

   Explanation: The publisher states, "A valid hypothesis must be testable." Nitrogen and growth can be measured and compared. Purpose without detectable effects, beauty, and moral value do not supply testable biological explanations.

   Reference: OpenStax Biology 2e — The Science of Biology — 1.1, Testing a Hypothesis

7. 7A pancreatic cell secretes large amounts of digestive enzymes. Which cellular structures directly assemble those enzyme polypeptides?

   1. A.Lysosomes
   2. B.RibosomesCorrect answer: B
   3. C.Centrioles
   4. D.Peroxisomes

   Explanation: OpenStax states, "Ribosomes are the cellular structures responsible for protein synthesis." Digestive enzymes are proteins assembled by ribosomes. Digestion, spindle organization, and peroxide metabolism are different cellular functions.

   Reference: OpenStax Biology 2e — 4.3, Ribosomes

8. 8Two heterozygous parents, Aa and Aa, have offspring. With complete dominance, what proportion is expected to show the recessive phenotype?

   1. A.1/2
   2. B.3/4
   3. C.1/4Correct answer: C
   4. D.1

   Explanation: OpenStax states, "Mendel’s observed 3:1 phenotypic ratio" The four equally likely combinations are AA, Aa, aA, aa; one of four is recessive, or 25%. One-half counts heterozygotes, three-quarters counts dominant phenotypes, and one assumes every offspring is recessive.

   Reference: OpenStax Biology 2e — 12.3, Equal Segregation of Alleles

9. 9What does an internal node in a phylogenetic tree represent?

   1. A.An ancestor where lineages divergedCorrect answer: A
   2. B.A species with no evolutionary relatives
   3. C.A measurement of current population size
   4. D.An individual with the most complex organs

   Explanation: OpenStax states, "The internal nodes represent ancestors" A node marks shared ancestry and divergence, rather than abundance or a ranking of complexity.

   Reference: OpenStax Biology 2e — 1.2, Diversity of Life

10. 10Two bird species coexist by feeding at different heights in the same forest. What process can reduce direct competition?

    1. A.Resource partitioningCorrect answer: A
    2. B.Identical niche occupation
    3. C.Competitive exclusion
    4. D.Unrestricted population growth

    Explanation: OpenStax states, "a different area of the habitat, or feeds during a different time of day, called resource partitioning." Different resource-use patterns reduce overlap; exclusion removes a competitor, while identical niches intensify overlap.

    Reference: OpenStax Biology 2e — 45.6, Competition