Lecture 1

Question 1

Microbe

Answer 1

Needs Microscope
Single / Multicellular
Metabolize food, grow and self reproduce
They also have proteins, sugars, genomes made of nucleic acid

Question 2

Bacteria range

Average bacteria

Answer 2

0.125um to 80 um to 750 um

1um; 2-4 um. (E.coli)

Question 3

6 major groups of Microbes

Answer 3

Prokaryotes —> 1. Bacteria 2. Archaea

Eukaryotes —> 3. Algae 4. Protists 5. Fungi

Question 4

Viruses

Answer 4

Non cellular and use another’s cells machinery to generate more virus particles
(They still have genetic content)

Question 5

DNA Sequencing

Answer 5

Influences study of Microbes

Question 6

First DNA Sequencing Method

Answer 6

Developed by Fred Sanger

Question 7

Genome —> total genetic material

Answer 7

Prokaryotes— 180,000

Eukaryotes— 7,000

Viruses — 23,000

Question 8

E. Coli and B. Fragilis

Answer 8

E.coli and Fragilis
Share 40% of their genes

C.elegins and H. Sapiens
Share 38% of genes

Question 9

Microbial disease in warfare

        -who found the science of medical stats

Answer 9

• More soilders have died from microbial infection than battle wounds
  - Nurse Florence Nightgale

Question 10

Robert Hook

Answer 10

• Built first compound microscope (30x)
• Saw mold
• 1st to see units of living materials “cells”
• Never saw single-celled Bacteria

Question 11

Antonie van Leeuwenhoek

Answer 11

• 1st to see single-celled microbes
• Used a single lens
• Saw microbes from the matter between his teeth before and after drinking coffee
  * Microbes disappeared after drinking coffee which suggested that heat killed them