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- Plant cell (2762 bytes)
6: ...e of [[chitin]], and [[prokaryotes]], which are made of [[peptidoglycan]].
7: * The [[plasmodesmata]], linking pores in the cell wall that allow...
11: ... parts of a living plant's tissue are selectively dead so they can serve the plant without consuming v...
16: ...dary wall as well. These two major parts are what determines the function of each individual plant cel...
19: *[[Epidermis (botany)|Epidermis]] - the outer most covering of a plant. - Forest (3705 bytes)
2: [[image:Conifer_forest.jpg|thumb|right|360px|A dense growth of softwoods (a forest) in the Sierra N...
4: ...ommunities covering large areas of the globe provide carbon-sink, oxygen-release, habitat, and soil-re...
6: ... is locked in [[lignin]] and other materials that decompose slowly.
9: [[image:Forest1.jpg|thumb|right|250px|A decidous beech forest in [[Slovenia]].]]
17: ...]). [[Tropical]] and [[subtropical]] forests include [[tropical rainforest]], [[Tropical and subtropic... - Carboniferous (4655 bytes)
1: ...alled the [[Mississippian]] period, and the remainder is called the [[Pennsylvanian]].
7: ...[[faunal stage|Faunal stages]] from youngest to oldest are:
19: *Myachkovskian/Bolsovian/Desmoinesian
20: *Podolskian/Desmoinesian
28: *Marsdenian - Cell wall (6206 bytes)
1: ...alls. When a cell wall is removed using cell wall degrading [[enzyme]]s, what is left of the cell and ...
5: ...this pressure that is induced by excess water inside the plant cell. Cell walls protect agains [[patho...
7: ...f [[pectic acid]]). Cells interact though [[plasmodesma]](ta), which are inter-connecting channels of ...
9: ...its'' in the secondary cell wall that allow plasmodesma to connect cells through the secondary cell wa...
15: ...oxyproline]] (Hyp). Each class of glycoprotein is defined by a characteristic, highly repetitive prote... - Cellulose (2147 bytes)
3: is a long-chain [[polymer]] [[polysaccharide]] [[carbohydrate]], of [[glucose|beta-glucose]]. ...
6: ...llulose]], historically used in [[smokeless gunpowder]].
10: ...[[rayon]], and more recently [[Modal]], a textile derived from beechwood cellulose.
17: ...occurs). In ''microfibrils'', the multiple hydroxide groups [[hydrogen bond]] with each other, holding...
19: ...ve in a 17.5% solution of sodium hydroxide at 20 °C is ''Alpha Cellulose'', which is true cellulos...
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