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Biology Lab 2
Microscopes
13
Biology
Undergraduate 1
09/12/2012

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Term

Thonius Philips van Leeuwenhoek

 

 

Definition

First to recognize and describe some of the diversity of microscopic life.

 

"Father of Microbiology" 

Term
Compound Microscope
Definition
Uses 2 lenses --ocular and ocular-- to collect and focus light from the source. 
Term
Stereomicroscope
Definition

Observes larger objects, provides 3D view of specimen. Collects light reflected off of the specimen.

 

*Dissecting microscope*

Term
Prokaryotic Cells
Definition

Cells without membrane-bound nucleus

 

Genetic material found as a single, double-standed DNA molecule in the form of a ring.

Term
Eukaryotic Cells
Definition
Have a membrane-bound nucleus as well as membrane bound organelles
Term
Kingdom Monera
Definition

Original kingdom that classified prokaryotic cells.

 

*Now broken into 3 Domains*

Term
3 Prokaryotic Domains
Definition

Archaea

Bacteria

Eukarya

Term
Archaea
Definition

Known for inhabitting "extreme" environments 

 

Methanogens (methane producers)

Halophiles (salt-loving)

Thermoacidophils (heat-and-acid loving)

Term
Cynobacteria (Blue-green Algae)
Definition

photoautotrophic organisms

 

release oxygen as a by-product of their photosynthesis.

 

*Perform nitrogen fixation*

Term
Nitrogen Fixation
Definition
Capturing of Nitrogen gas from the air and converting it to ammonia. 
Term
Endosymbiosis
Definition

Theory explaining the evolution of eukaryotes and prokaryotes. 

 

**States certain organelles or modern eukaryotic cells evolved after successful engulfing without digestion of different independent bacterial cells**

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