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Tissue

Definition

noun, plural: tissues

An aggregate of cells in an organism that have similar structure and function.


Supplement

The fundamental types of tissues in animals are epithelial, nerve, connective, muscle, and vascular tissues whereas in plants, they are the meristematic (apical meristem and cambium), protective (epidermis and cork), fundamental (parenchyma, collenchyma and sclerenchyma) and vascular (xylem and phloem) tissues. Tissues that work in unison to carry out a specific set of functions form an organ.


Word origin: Middle English tissu, a rich kind of cloth, from Old French, from past participle of tistre, to weave, from Latin texere.

Related forms: tissuey (adjective), tissular (adjective).

See also: cell differentiation, organ, histology.


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Stem Cells and Cell division?

... form of energy. Therefore, it is easy to have dedicated cells for division and differentiation. Therefore, normal cells can continue doing their tissue function whereas adult stem cells perform their function i.e. dividing and replacing damaged cells. Also, the question 'why?' seems to be unanswerable. ...

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by supersapien
Sun Sep 28, 2014 7:20 pm
 
Forum: Cell Biology
Topic: Stem Cells and Cell division?
Replies: 1
Views: 736

Are Evergreens better for reducing carbon?

Obviously plants are carbon sinks, but unless the carbon that they remove form the atmosphere is locked up indefinitely in their tissue, it will find its way back into the atmosphere through respiration. Leaves are generally poor long term sinks of carbon as they have relatively quick ...

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by BasicBiology
Mon Aug 18, 2014 10:47 am
 
Forum: Botany Discussion
Topic: Are Evergreens better for reducing carbon?
Replies: 2
Views: 953

Stem Cells and Cell division?

... lie. I am well aware of the function of embryonic stem cells (As I know that Cell Specialization must occur in order for all our vitals and tissues to be formed). However, somatic (Adult tissue) stem cells I am unsure of. My question is, is that if our vitals and tissues are formed during ...

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by CaptainCovalency
Thu Jul 10, 2014 3:54 am
 
Forum: Cell Biology
Topic: Stem Cells and Cell division?
Replies: 1
Views: 736

Please help me identify this cell

This is a 1000x image of a slide marked as "Areolar Tissue, Mammal" from my histology lab. The TA couldn't tell me what kind of cell this was in the center. The light purple oval with the small purple dot is the one that interests me. Is the ...

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by Marauder21
Thu Apr 10, 2014 5:01 am
 
Forum: Cell Biology
Topic: Please help me identify this cell
Replies: 2
Views: 1500

identify bacterias in Gram stain kit &The Giemsa Stain Kit

... the demonstration and differentiation of Gram-positive and Gram-negative bacteria. Gram Positive Bacteria: Blue Gram Negative Bacteria: Red Other Tissue: Yellow Nuclei: Red The Giemsa Stain Kit (May-Grunwald) is intended for use in the visualization of cells present in hematopoietic tissues and ...

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by scytek
Sat Mar 15, 2014 1:11 pm
 
Forum: General Discussion
Topic: identify bacterias in Gram stain kit &The Giemsa Stain Kit
Replies: 0
Views: 1414
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