Flashcard chapter 3

Xylem, What is the function of it

main tissue in plant that deals with the transportation of water and increases in size and strength

what are the different kind of xylem

fibers, tracheids, vessels

Xylem: fibers

structural strength

Xylem: tracheids

water transport, to get it to the smaller areas of the plant

Xylem: Vessels

water transport *the most water, this is more likely to break because there is so much water pressure

which Xylems have the most water flow

vessels> tracheids>fibers

what is the function of the phloem

to transport sucrose, nutrients, etc.
Water is used to transport the materials
(it goes from source to sink(place where needed)

what is a sieve plates

perforated wall between two sieve elements,

what does a sieve plate do

it allows water & organic solutes to flow along the sieve tube

what is the main components of phloem

Companion cells, and sieve cells

what is a sieve cell

an elongated cell whose walls contain perforations (sieve pores) that are arranged in circumscribed areas (sieve plates) and that afford communication with similar adjacent cells.

what are companion cells

A specialized parenchyma cell, located in the phloem of flowering plants and closely associated in development and function with a sieve-tube element.