Plant Evolution.

Slides:

Advertisements

Similar presentations

1. Plants are autotrophs- using chlorophyll for Photosynthesis 6CO 2 + 6H 2 O → C 6 H 12 O 6 + 6O 2 (Carbon dioxide and water makes glucose and oxygen)

Advertisements

Chapter 21 and 22 - Plants.

Ch 17 Plants Colonization of Land

KEY CONCEPT Plant life began in the water and became adapted to land.

KEY CONCEPT Plant life began in the water and became adapted to land.

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Objectives Summarize how plants are adapted to living on land Distinguish.

Origins of Plant Life and Plant Adaptations

Plant Evolution.

Plants Chapter 19 & 20.

What is a plant??? Organism that is: Multicellular Eukaryote

1) Green substance, or chemical, that captures solar energy. 2) Plants without different types of tissue for carrying water and nutrients. 3) Stage during.

19 KEY CONCEPT Plant life began in the water and became adapted to land. (Charophytes are the ancestors of plants)

UNIT 16: PLANTS Chapters L.14.7.

What are the differences between these two?. What are the similarities between these two?

Introduction to Plant Life Interest Grabber Plants Make the World Go Round Life as we know it today could not exist without plants. Plants provide us with.

Introduction to Plants Chapter 22.1 Basic Plant Structure.

DOMAIN EUKARYA: KINGDOM PLANTAE AND KINGDOM ANIMALIA Class Notes 5:

KEY CONCEPT Plant life began in the water and became adapted to land. Plant Evolution.

Providers of the Planet

Plant Kingdom!!. Characteristics  Eukaryotic  Autotrophic  Multicellular  Sexual reproduction  Cellulose in cell walls.

Plants  plants dominate most of the land on Earth  plants and plant products are all around us, in the products we use and the foods we eat.

Origin of Plants Land plants came from Green Algae A plant is a multicellular autotroph in which the embryo develops within the female parent.plant.

Aim: What are plants and how are they classified?

Plant Evolution Evolved from green algae (450 mya) –E–Evidence: Both have chlorophyll, store energy as starch, DNA similarities Green algae ancestor.

20.1 Origins of Plant Life TEKS 7A, 7E, 8C, 12A The student is expected to: 7A analyze and evaluate how evidence of common ancestry among groups is provided.

Plants!!. Land plants probably evolved from green algae about 430 million years ago.

Plant Kingdom. Chapter Vocabulary Cuticle Stoma Xylem Phloem Guard Cell Non-Vascular Plant Root Stem Leaves Seeds.

The Plant Kingdom Chapter 4:1 and 2 (Photosynthesis)

Plant diversity. Origin of Plant Life Plant: Multicelluar eukaryotes, most of which produce their own food through photosynthesis and have adapted to.

Evolution of Plants. Plant Evolution All Plants have Alternation of Generations  gametophyte….  plant body that produces gametes  Sporophyte –plant.

Introduction to Plants. Five Plant Characteristics   Plants are multicellular eukaryotes.   Plants are autotrophs containing chloroplasts for photosynthesis.

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Characteristics of Plants Section 1 Adaptations of Plants Chapter.

Main Ideas Land plants evolved from green algae

Figure 24–5 The Structure of a Flower

INTRODUCTION TO PLANTS

Chapters Kingdom Plantae.

The Plant Kingdom E.Q: What are the characteristics of the plant kingdom? How are plants classified?

Introduction to the Plant Kingdom

Introduction to the plant kingdom

Introduction to the plant kingdom

Plant Tissues and Organs

Plant Diversity Ch

Do First 1. You have 30 seconds from the bell to give Mrs. Jain your fungi guided reading 2. Grab today’s notes worksheet 3. Get in your new seat. Ask.

Plant Evolution.

Nonvascular Plant Characteristics

KEY CONCEPT Plant life began in the water and became adapted to land.

KEY CONCEPT Plant life began in the water and became adapted to land.

ADAPTATIONS OF PLANTS I. Establishment of Plants on Land

KEY CONCEPT Plant life began in the water and became adapted to land.

Do Now What do plants need in order to survive?

I. Plants and the Colonization of the Land

KEY CONCEPT Plant life began in the water and became adapted to land.

Kingdom Plantae The Story of the Plants.

The Plant Kingdom The oldest and most simple photosynthetic organisms on earth are algae. The multicellular algae are separated into divisions based on.

KEY CONCEPT Plant life began in the water and became adapted to land.

Plants CH 22 and 23 Honors Biology.

What Is a Plant? Page 574 Read the lesson title aloud to students.

Plant Structure and Function

Plant Evolution.

KEY CONCEPT Plant life began in the water and became adapted to land.

The Plant Kingdom The oldest and most simple photosynthetic organisms on earth are algae. The multicellular algae are separated into divisions based on.

Chapter 20: Plant Diversity

Plant Evolution.

KEY CONCEPT Plant life began in the water and became adapted to land.

Kingdom Plantae.

Chapter 22 – Plant Diversity

The Evolution of Land Plants

By Amirah Wiley, Annalisa Bernard P.8

Presentation transcript:

Plant Evolution

Plant Evolution Evolved from green algae (450 mya) Both have same type of chlorophyll, store energy as starch, DNA similarities Green algae ancestor Multicellular body Cells w/ channels to communicate Reproduce w/ sperm & egg Early plants Low growth (nonvascular)

Land Adaptations cuticle Challenge: Retain Moisture Early plants grew near water’s edge Those that could survive longer dry periods were favored through natural selection Adaptations: Cuticle: waxy coating Stomata: pores to allow gas exchange

Land Adaptations Challenge: Transporting Resources Adaptation: glucose water Challenge: Transporting Resources Adaptation: Vascular system: tissue to transport nutrients Up from the roots (ex: water) Down from the leaves (ex: sugars) Allows for taller growth

Land Adaptations Challenge: Growing upright Mortar Lignin Challenge: Growing upright Large plants need to support own weight Adaptation: Lignin: hardens cell wall; gives wood strength

Land Adaptations Challenge: Reproduction on land Adaptations: Pollen: carried by wind/animals Seeds: hard coat protects embryo inside

Plant Ecology & Evolutionary Relationships Mutualistic relationships Type of symbiosis where both organisms benefit Ex: Plants (provides living space)/Bacteria (create nutrients) Ex: Plants (provide food)/Animal (help pollinate) Herbivore interactions Defense adaptations Spines, thorns, chemicals

Review What traits do plants and plant-like protista (algae) share? Name 4 adaptations that plants have for life on land. Which plant adaptation allows them to carry nutrients to great heights? Which plant adaptation allows them to retain moisture? What is the purpose of lignin? Explain a symbiotic relationship between plants and other organisms? How do plants protect themselves from predators?