Lecture 2 terms

Question 1

Microorganism

Answer 1

organism you can only see with a microscope

Question 2

Eukaryotes

Answer 2

Algae, fungi and Protists (cells with nuclei)

Question 3

Bacteria (prokaryotes)

Answer 3

18 kingdoms (at least)

Question 4

Archaea

Answer 4

4 kingdoms

Question 5

Viruses

Answer 5

non cellular (without a host)

Question 6

Zacharias Janssen

Answer 6

Dutch spectacle; first compound microscope 1594. 3-9x magnification

Question 7

Robert Hooke

Answer 7

Englishman, first described cells and coined “cells”. Also first described microbes and fungi/mould. 30x magnification

Question 8

Anton van Leeuwenhoek

Answer 8

Dutch tradesman, first described microorganisms “animalcules”. 200x mag

Question 9

Universal Ancestor

Answer 9

Microorganisms are the most ancient form of known life

Question 10

Oldest fossils

Answer 10

3.5 billion years old bacteria; resembles modern cyanobacteria

Question 11

Stromatolites

Answer 11

Oxygenated ancient earth via photosynthesis. Coral like. 2.8 - 1 billion years ago

Question 12

Endosymbiosis

Answer 12

Merging of bacteria in eukaryotic cells. 1.5 billion years ago

Question 13

Tree of Life

Answer 13

Describes/illustrates the evolution of microorganisms from the Universal Ancestors (prokaryotic)

Question 14

Chytrids (protists)

Answer 14

Fungi like single celled eukaryotic ancestor of fungi

Question 15

Choanoflagellates

Answer 15

Single celled eukaryotic ancestor of animals

Question 16

Chlorophytes (green algae

Answer 16

Single celled photosynthetic eukaryotic ancestor of plants