Lab

Worksheet 3: Bacteria and Viruses Name

Objectives for Week 3.

1. You will list the similarities and differences of prokaryotic and eukaryotic cells.

2. You will list the similarities and differences of organisms belonging to the domains bacteria and archaea.

3. You will describe the characteristics of bacteria and viruses.

Reading Assignment: Read 16.2 through 16.5 from the textbook Essentials of the Living World. There is also a power point of this material.

A - List 2 differences between prokaryotic and eukaryotic cells.

B - List an example of each of the following Domains and kingdoms.

Archaea bacteria Eukarya Protista

Fungi Plantae Animalia

C - Explain why scientists put methanogens into a separate domain than Bacteria.

D - Using the internet, find information about the following bacteria. Insert an unlabeled photograph of a microscope slide (not a line drawing) of each bacterium (include where you copied the picture from, i.e. the web site), identify the shape (cocci, bacilli, or spirilla) and describe the diseases they cause.

Campylobacter jejuni

Escherichia coli

Helicobacter pylori

Salmonella enterica

Staphylococcus aureus

Streptococcus pneurmoniae

E - Do bacteria have organelles?

F - Explain why scientists have not placed viruses into a domain or kingdom.

G - Describe the process that viruses use to reproduce. Contrast this with the process that bacteria use to reproduce.

H - List 4 diseases that viruses cause.

I - Explain why antibiotics aren’t useful in treating viral infections.

J - Explain how our body fights off a viral infection.

Once you have completed this worksheet you need to submit it using Blackboard.

Take Lab Quiz 3. This quiz covers the information from sections 16.2 – 16.5.