Notes on Cell Structures
Title: Notes on Cell Structures
Category: /Science & Technology/Biology
Details: Words: 1896 | Pages: 7 (approximately 235 words/page)
Notes on Cell Structures
Category: /Science & Technology/Biology
Details: Words: 1896 | Pages: 7 (approximately 235 words/page)
Cytology is the study of cell structure
Cell is the simplest collection of matter that can live
Hooke discovered "cells"
Schleidan "all plants are composed of living cells"
Schwann "all animals are made of living cells"
Virchow "existing cells give rise to new cells"
Cell Theory
<Tab/>"All organisms are composed of one or more living cells"
<Tab/>"Cell is the most basic unit of function"
&
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showed last 75 words of 1896 total
channels called plasmodesmata through which the plasma membrane of bordering cells connect link cells together like a cell continuum
* Animal cells have three main types of intercellular junctions
* Tight junction is when the membranes of neighboring cells are actually fused together
* Desmosomes also called anchoring junction fasten cells together into strong sheets; strengthened by intermediate filaments
* Gasp/communicating junction provide cytoplasmic channels between adjacent animal cells that allow exchange for ions; common in animal embryos