there is no table Lab summary On a separate sheet of paper, answer the following

ID: 148501 • Letter: T

Question

there is no table

Lab summary On a separate sheet of paper, answer the following questions as assigned by your lab instructor. Your entries in summary Table 2.2 will help you answer the questions.

1. Name eight characteristics that separate protist from bacteria.

2. Distinguish between unicellular and multicellular and give an example of each.

3. Name the five supergroups of eukaryotes include ”protists” and describe a unique characteristic of each.

4. Which clades have flagellated cells?

5. Which clades are photosynthetic?

6. Which clades contain parasitic species?

7. Name several human diseases caused by protists.

8. Describe three ways that protists propel themselves.

9. Describe how a sexual reproduction occurs in protists.

10. Give an example of a protist that reproduces by asexual reproduction and discuss its life cycle.

11. What is the role of cysts in the life cycle of protists? How does a cyst differ from a test?

12. Give an example of a parasitic protist that has two hosts in its life cycle.

13. Plants are most closely related to protist in what clade?

14. Animals and fungi are most closely related to protist in what clades?

15. Give several examples where protists are important members of ecosystems?

Critical thinking questions

1. Sexual reproduction has never been observed and some protists. What are the genetic implications of this observation?

2. Speculate on how colonial aggregates of cells may have led to multicellularity

3. Because of the classification of protists is a work-in-progress, compare the classification used here with that in your textbook. How are they similar? How do they differ?

4. Plants and green algae are in the supergroup Archaeplastida. Speculate on how the evolutionary steps that led from algae to plants. Hint: read ahead for background material.

Explanation / Answer

Protists

Bacteria

Eukaryotes

Prokaryotes

Multicellular

Unicellular

Nucleus surrounded by nuclear wall

Nuclear wall absent

Has membrane bound organelles

Membrane bound organelles absent

Sexual Reproduction

Asexual Reproduction

DNA wrapped around histone proteins

Histone protein is absent

Linear DNA

Circular DNA

Transcription and translation occur separately

Transcription and translation occur together