Lecture 2 terms Flashcards Preview

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Flashcards in Lecture 2 terms Deck (16)
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1

Microorganism

organism you can only see with a microscope

2

Eukaryotes

Algae, fungi and Protists (cells with nuclei)

3

Bacteria (prokaryotes)

18 kingdoms (at least)

4

Archaea

4 kingdoms

5

Viruses

non cellular (without a host)

6

Zacharias Janssen

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

7

Robert Hooke

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

8

Anton van Leeuwenhoek

Dutch tradesman, first described microorganisms "animalcules". 200x mag

9

Universal Ancestor

Microorganisms are the most ancient form of known life

10

Oldest fossils

3.5 billion years old bacteria; resembles modern cyanobacteria

11

Stromatolites

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

12

Endosymbiosis

Merging of bacteria in eukaryotic cells. 1.5 billion years ago

13

Tree of Life

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

14

Chytrids (protists)

Fungi like single celled eukaryotic ancestor of fungi

15

Choanoflagellates

Single celled eukaryotic ancestor of animals

16

Chlorophytes (green algae

Single celled photosynthetic eukaryotic ancestor of plants