Plant Structure & Growth Chapter 35 Plant Structure & Growth
Lettuce Spinach Carrot What headings can be given to the following: Lettuce Spinach Carrot Apples Oranges Peas
What is a vegetable? What is a fruit?
Lettuce Spinach Carrot What headings can be given to the following: vegetable fruit Lettuce Spinach Carrot Apples Oranges Peas
Point Plants have organs too, just like animals. Asexual organs (vegetables) Sexual organs (fruits)
Asexual Organs 1. Stem 2. Leaf 3. Root
Sexual Organs 1. Flowers 2. Fruits 3. Seeds
Main Tissue Systems 1. Dermal 2. Vascular 3. Ground
1. Dermal Epidermis prevent water loss water absorption (root hairs)
2. Vascular xylem & phloem transport support
XYLEM - dead @ maturity / insides disintegrates XYLEM - dead @ maturity / insides disintegrates made of tracheids & vessel elements
PHLOEM - alive @ maturity / transports sugar made of sieve tubes
3. Ground tissue between vascular & dermal cushion & support
How does plant growth and animal growth differ ? Question ? How does plant growth and animal growth differ ? determinate indeterminate
Plant Meristems Perpetual embryonic regions. Zones for cell division. Do not stop growing (like us humans)
Plant Meristems 1. Apical growth in length. Primary growth. 2. Lateral/Cambiums growth in diameter. Secondary growth. perpetual embryonic regions
Plant Meristems
Angiosperm stems
eudicots
monocot eudicot
monocot eudicot
monocot eudicot
monocot dicot
monocot eudicot
Summary Know the main organs of plants and their functions. Know the main cell types or tissues in plants and their functions.
Summary Know the structural organization of stems, roots, and leaves. Know the differences between eudicots and monocots.