21- system plant-tissues summary questions PDF

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Summary

Notes on systems tissues in plants from the year 2020/2021 with accurate information and decent detailed information on the concept/topic...

Description

Plant Tissue Systems

SNC2D Plants have 3 types of tissues: 1. Dermal Tissue

2. Vascular Tissue

3. Ground Tissue

Dermal Tissue 1. Epidermal Tissue  Thin layer of cells that cover the surfaces of leaves, stems and roots.  _________________ are an extension of the root epidermal tissue that ________________ the surface area for ________________________________.  Epidermal tissue on leaves creates a ____________________ that protect the plant from water loss. 2. Periderm tissue  In woody plants, epidermal tissue is replaced by periderm tissue  produces barks on stems and roots.

Vascular Tissue The vascular tissue of a plant is like our __________________________________. It transports the water, minerals and other chemicals throughout the plant. There are 2 types of vascular tissue: 1. Xylem  Vascular tissue in plants that, once matured, are hollow tubes with rigid walls stacked end to end to create a _______________ from the roots to the shoots  Transport water and dissolved minerals upward from the roots to the leaves of the plant  Once xylem cells are mature they are no longer living tissue 2. Phloem  Transports __________________ created by photosynthesis, other chemicals and hormones throughout the plant  Phloem cells are _____________________ tissue

Vascular tissue is arranged in 2 different ways:

1. _______________________ – vascular bundles (one xylem and one phloem tube) are arranged _____________________ throughout the stem

2. _______________________ – vascular bundles are arranged in a _________________ formation

Ground Tissue Ground tissue is the composed of all the tissue ___________________________ the dermal tissue and the vascular tissue. It performs different functions in the different parts of the plant:  In roots – Ground Tissue is involved in food and water storage  In Stems – It provides strength and support  In Leaves – It is involved in photosynthesis and gas exchange

Gas Exchange  Stomata (pl.) are openings (or pores) along the leaves that allow for ___________________  Guard cells are around the _______ and control the loss of water

- Guard cells control the movement of _________ (and water) because they surround the stomata - When there is a good supply of water within the plant, the guard cells ______ and open the stoma; - when there is insufficient water within the plant, the guard cells ___________ and close the stoma - When the stomata are open, transpiration occurs (____________________________________) - Stomata are _________ during the day for gas exchange so photosynthesis can occur, and __________ at night to avoid water loss....