Chloroplasts Cell walls Seedless, but vascular Monocots & dicots

Slides:



Advertisements
Similar presentations
Ch 23- Roots, Stems, and Leaves
Advertisements

BIOL 197L - Lab #6: PLANT MORPHOLOGY, GROWTH, MICROANATOMY, AND TRANSPORT.
Unit 7 Plants Ch. 23 Roots, Stems, & Leaves.
Chapter 23 Biology – Miller • Levine
March 28, 2005 Plant Tissues Chapter 26 Jin Hoe Huh.
Roots, Stems & Leaves.
Chapter 23 Roots 23:2.
Chapter #42 – Plant Anatomy & Nutrient Transport
Plant Structure. Plant Tissues A tissue is a group of cells organized to form a functional unit or a structural unit Plants have 3 tissue systems: Ground.
Plant Structure And Growth
Figure Review of General Plant Cell Structure
Plant Structure and Growth
Plant Structure, Growth, and Development
Plant Structure and Function
NOTES: CH 35 - Plant Structure & Growth. In their evolutionary journey, plants adapted to the problems of a terrestrial existence as they moved from water.
PLANTS: Structure and Growth.
Plant Structure Chapter 35.
Plant Structures.
Plant Form & Function Plant Anatomy
Secret Life of Plants Plant Anatomy. Terms Node – place where leaf petiole attaches Internode – stem between nodes Terminal bud – at the end of a branch.
Plant anatomy Roots  Absorb water and dissolved nutrients  Anchor plants  Hold plants upright Stems  Supports the plant body  Transports nutrients.
Patterns of Structure and Function in Plants. Brain Viagra In The News.
Chapter #35~ Plant Structure and Growth
Lecture 4 Anatomical structure of vegetative plants organ. Plan 1. Anatomical structure of root. 2. Anatomical structure of stems and rhizomes. 3. Anatomical.
Plant Structure. Plant Body Plan The apical–basal pattern and the radial pattern are parts of the plant body plan They arise through orderly development.
Plant Structure And Growth. The Plant Body is Composed of Cells and Tissues l Tissue systems l made up of tissues l made up of cells.
Chapter 23 Plant Structure and Function
Chapter 23 BIO 392 Flowering plants Cone- bearing plants Ferns and their relatives Mosses and their relatives Green algae ancestor Flowers; Seeds Enclosed.
9-1 Honors Biology Chapter 9 Plant Anatomy John Regan Wendy Vermillion Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or.
Lecture 4 Anatomical structure of vegetative plants organ. Plan 1. Anatomical structure of root. 2. Anatomical structure of stems and rhizomes. 3. Anatomical.
Plant Structures and Tissues. 3 Organs in Vascular plants 1.Roots 2.Stem 3.Leaves.
A. Plants have 3 organs:  1. Roots- Anchor Absorb water and nutrients  2. Leaves- Photosynthesis  3. Stems- Support and transport.
Plant Structure (Leaves, Stems, Roots)
1. Meristematic tissues 1. Permanent tissues  Charecteritics 1. Small 2. Cubed-shaped 3. Embryonic 4. divide.
PLANT STRUCTURE & DEVELOPMENT Chapter 35. Overview  Roots – Underground  Shoots – Leafs & Stems  3 Tissue types in the above Dermal, Vascular, & Ground.
PLANTS.
Leaves, Roots, Stems Plant organs and their functions.
 The cells of a seed plant are organized into different tissues and organs.  Three of the principal organs of a seed plants are ◦ Roots—absorb and transport.
CHAPTER 9 – PLANT ORGANIZATION. 9.3 – Plant Tissues.
Figure Review of General Plant Cell Structure
Chapter #35~ Plant Structure and Growth
Plant Structures Leaves, Roots and Stems
Plant Structures Stems Horticulture I Specialized Tissues in Plants Plants are as successful if not more successful than animals Plants are as successful.
Plant Structure and Function That’s called physiology in bio-speak.
PLANT STRUCTURE AND FUNCTION
Plant Structure and Function Chapter 31. Plant cells: Parenchyma Large central vacuole Storage of water Form the bulk of non- woody plants.
Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings Concept 35.1: The plant body has a hierarchy of organs, tissues, and cells Plants,
Plant Tissues and Organs Annuals Biennials Perennials Dicots Monocots Cotyledon Root system Shoot system SIMPLE TISSUES Meristems Apical meristems Primary.
Lecture # 16 Date _____ Chapter #35~ Plant Structure and Growth.
Cortex – tissue inside the epidermis, storage organ Endodermis – a single layer of cells that acts as a wall between cortex and pericycle. Pericycle –
Chapter 35 Plant Structure and Growth. Angiosperm structure Three basic organs: 1.Roots (root system) fibrous: mat of thin roots taproot: one large, vertical.
Plant Structure. Plant Tissues A tissue is a group of cells organized to form a functional unit or a structural unit Plants have 3 tissue systems: –Ground.
Lecturer: Suhail Al-Khatib.  Flowering plants, or angiosperms, are extremely diverse but share many common structural features.  Most flowering plants.
1 Kingdom Plantae Plant Structure and Functions Ch. 20 and 21.
DICOT LEAF UPPER EPIDERMIS CUTICLE PALISADE PARENCHYMA BUNDLE SHEATH
Part 2: Tissues, Roots, Stems & Leaves
Parts of a Plant.
Plant Structure and Growth
Lecture # 16 Date _____ Chapter #35~ Plant Structure and Growth.
Transport in Plants part 1
Plant Tissues Chapter 28.
PLANTS: Structure and Growth.
Outlines of Previous Lecture
Chapter 23 Roots 23:2.
Plant Cell and Anatomy AICE Biology.
Applied Biology Plant Review.
Chapter 23 Biology – Miller • Levine
Plant Tissues.
Plant Structure And Growth
Presentation transcript:

Chloroplasts Cell walls Seedless, but vascular Monocots & dicots NonvascularGametangia, need water to reproduce Chloroplasts Cell walls Seedless, but vascular Monocots & dicots

Adaptations to Terrestrial Life Stomata(gas exchange) Cuticle(prevention water loss) Lignin(support) Gametangia & seeds (reproduction) Pollen(reproduction) Vascular tissue(support & transport)-xylem & phloem Roots(water acquisition, support) Seed dispersal mechanisms

General Structure

Plants- General Characteristics Terrestrial Photosynthetic Alternation of generations

charophyte

bryophytes

pteridophytes

gymnosperms

angiosperms

Plant Morphology Organs  tissues  cells Leaves dermal parenchyma Stems vascular collenchyma Roots ground sclerenchyma meristematic

Tissues Dermal Vascular Ground Outer covering Protective Epidermal cells (cuticle) Guard cells Root hairs Vascular Transport & support Xylem & phloem Ground Bulk of plant Photosynthesis, storage, support

4. Meristematic Embryonic tissue-grows throughout life of plant Roots, shoots, stem(lateral)

Cell Types Found in all 3 tissue types phloem Found in vascualr bundles Thicker cell walls Include Fibers-bundles, support Scleroids-nut shells, seeds Tracheids & vessels of xylem Heavy lignin

sclerenchyma collenchyma parenchyma

Stems Functions Transport between roots & leaves Storage support

Stems-basic structure Epidermis Cuticle, stoma, photosynthetic Body mostly parenchyma Support tissues-collenchyma & sclerenchyma Vascular tissues in bundles Scattered (monocots) or in rings (dicots) Can grow up or out

Monocot stems scattered

Epidermis______

Dicot Stems In ring, around pith

Secondary growth-woody dicots only Produce a new layer of xylem & phloem each year Vascular cambium divides & differentiates Epidermis becomes cork cells, part of bark, along w/ phloem

Vascular cambium- undifferentiated cells Pith & cortex parenchyma for storage Phloem & xylem rays Transport H2O & nutrients Laterally Primary xylem & phloem Non-functioning Cork cambium Produces cork cells which replace epidermis-secrete suberin & die Bark Phloem(living & dead), cork cambium & cork Periderm Cork cambium & cork

Xylem = oldest Dead cells & suberin

How does secondary growth happen? c=vascular cambium cell D=undifferentiated product of mitosis X=xylem P=phloem

Roots Differentiation complete 1st stage of differentiation Responsible for lengthening of root 1st stage of differentiation Protection/lubrication

Root Functions Anchoring Take up water & minerals 1st part to develop 2 types Taproot(dicot) Fibrous(monocot)

Basic Structure Epidermis(dermal)-covers entire surface, including hairs Absorption, protection No cuticle Cortex-mainly parenchyma No chloroplast, but has storage plastids Stele/vascular cylinder Surrounded by endodermis-cells are highly selective Xylem & phloem inside Casparian strip Pericycle Pith(monocots) Thru cell walls Thru cytoplasm

Lateral branch from pericycle

Differences between monocots & dicots

Monocots

__________endodermis ____________pericycle

Dicots ________ epidermis __________________ cortex Vascular Cylinder___ Endodermis___________ ________________xylem Pericycle________________ ________________phloem

Leaves Functions Photosynthesis Maximize sunlight exposure Gas exchange Water conservation

Special Leaf Adaptations Specialized photosynthetic cells Shape-most are broad & flat Stomata Pointed-water run off Needle-shaped-cold & wind Succulents-water storage

General Structure Outer leaf Cuticle(cutin) Epidermis(upper & lower) Stomata & guard cells Inner leaf Mesophyll Palisade parenchyma Densely packed, columnar, upper surface only Spongy parenchyma Irregular shapes, large spaces for gas diffusion Bundle-sheath cells(C4 plants) Vascular bundles/veins

Monocots vs Dicots Monocots Dicots Parallel veins No palisade layer Vascular bundles appear scattered under ‘scope Dicots One large central vein, smaller veins branching off (perpendicular) Palisade layer distinct

monocot monocot dicot

Palisade layer_______ _________spongy layer Main vein________

Leaf epidermis

General Structure cont…

fibers