Exam 3 Notes

Ebranch

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Unformatted text preview: re 35.2 Roots o An organ that anchors the vascular plant o Absorbs minerals and water Absorption occurs near root tips Root hairs increase the surface area of the root o Stores organic nutrients o Figure 35.3 Stems 12 o Consists of: Nodes – points at which leaves are attached Internodes – segment between nodes place where leaves are not attached Axillary buds – potential to form lateral shoot (i.e., branch) Terminal bud – located at the shoot tip, causes the elongation of a young shoot Figure 35.2 Leaves o The leaf is the main photosynthetic organ of most vascular plants o Consist of: a flattened blade the petiole, which joins the leaf to a node of the stem also known as the stalk o Figure 35.2 Simple vs. Compound Leaves o Simple leaf – a single, undivided blade Some may have deep lobes o Compound leaf – blade consists of multiple leaflets o Doubly Compound leaf – each leaflet is divided into smaller leaflets o Figure 35.6 o Axillary bud tells you where the leaf begins and what kind of leaf it is The Three Tissue Systems: Dermal, Vascular, and Ground o Dermal – consists of the epidermis and periderm o Vascular – carries out transport of materials...
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This note was uploaded on 02/03/2014 for the course BIOL 1202 taught by Professor Gregg during the Spring '08 term at LSU.

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