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Multiple Choice / Discussion Questions
Additional Questions for Study
- Describe the impact of the evolution of photosynthesis on
life on earth during the Precambrian period.
- List the two prokaryotic domains.
- The outcome of prokaryotic fission and conjugation are the
same. TRUE or FALSE. Explain your answer.
- Why does the dentist autoclave his instruments rather than
dip them in boiling water?
- What is an extremophile?
- How do photoautotrophs and chemoautotrophs differ with
regard to nutrition? How are they the similar?
- Why can some prokaryotes withstand extreme temperatures
while others would perish?
- Name several common shapes that bacterial cells form.
- What is the difference between gram-negative and
gram-positive bacteria? Is there a medical significance?
- How can some bacteria perform aerobic respiration and
photosynthesis if they don't have organelles like mitochondria
and chloroplasts?
- What is endosymbiosis? How is this significant in the
evolution of eukaryotic cells?
- Map an evolutionary tree showing the relationships of the
major clades of protists to each other.
- List one or two of the key characteristics that identify a
protist as falling into one of the major clades (see Table 28.1
in your textbook)
- Some of the older lineages of protists do not have any
mitochondria. How do they produce energy required for cellular
metabolism?
- Chloroplasts may have two (green algae), three (euglenoids)
or four membranes (dinoflagellates). Develop a hypothesis to
show how this might happen.
- Summarize your knowledge of protist characteristics
|
Characteristic |
Description |
fossil
evidence
habitats
nutrition
locomotion
reproductive system |
|
- Why is the Protist kingdom not considered monophyletic?
- What are the hallmarks of the 'alternation of generation'
life cycle?
- What is meant by a 'haploid dominant' life cycle?
- Describe a diploid dominant life cycle?
- Which of the three aforementioned life cycles is found in
plants? Which in fungi? Which in animals?
- Why might one confuse Oomycetes for fungi? Why would this be
a mistake?
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