Leaf Notes. Leaf Diagram Evolution of Photosynthesis First organisms = heterotrophic Problem: Too many organisms, not enough food Certain cells gained.

Slides:

Advertisements

Similar presentations

Leaves - Overview Shoot system Leaf Blade Petiole

Advertisements

Cycling of Matter in Living Systems 3.3 The Leaf Tissue and Gas Exchange.

Plant Tissues and Organs. Plant Tissues All plants are made up roots, stems, leaves and flowers. These structures are made up of cells These cells are.

Leaf Structure and Function. Basic functions 1. Photosynthesis: process which plants use the energy from sunlight to produce sugar (for themselves) 2.

Unit 5: Plants.  Site of photosynthesis  Leaf cells absorb energy from sunlight through organelles called chloroplasts.  When solar energy is absorbed,

LO: SWBAT explain how plants are adapted to carry out photosynthesis DN: Write the equation for photosynthesis. Identify the raw materials and end products.

Quiz Wiz How do unicellular organisms transport?

Internal structure of a leaf

Photosynthesis (leaf structure)

Plants Tissues part 2 Stem Leaf.

9.1 Leaves. IB Assessment Statement Draw and Label diagrams to show distribution of tissues in the stem and leaf of a dicotyledonous plant Explain the.

Complexity and Shapes of Leaves AGR 161: Unit C Found on Internet: Unknown Source Created By: Jennifer Stewart.

Leaf Structure and Function. Basic functions 1. Photosynthesis: process which plants use the energy from sunlight to produce sugar (for themselves) 2.

Figure 23–18 The Internal Structure of a Leaf

Roots, Stems, Leaves. VASCULAR TISSUES Tissues that transport materials from one part of a plant to another.

Plants A study of multicellular organisms. Cell Specialization Why do cells specialize? –Increase efficiency Division of labor –What does efficiency look.

Photosynthesis & Cellular Respiration. Characteristics of Plant Cells Cell wall Large vacuole for water storage Contain Chloroplast (carry out photosynthesis!)

Leaf Structure and Function. Basic functions 1. Photosynthesis: process which plants use the energy from sunlight to produce sugar (for themselves) 2.

Gas Exchange in Plants What are the two main gases that all organisms on earth need to exchange back and forth between themselves and the environment?

Photosynthesis Where does all that glucose come from? Chapter 3.

The Leaf The Leaf is the Main photosynthetic organ in a plant.

Consists of three parts: Epidermis, mesophyll and vascular bundles Epidermis  A single layered cells covering the leaf surface. Consists of the upper.

Leaf Structure Mr. Hefti – Pulaski Biology. Identification: 1.Cuticle 2.Upper epidermis 3.Mesophyll Transport tissues Xylem Phloem Palisade layer Spongy.

Leaf and Chloroplast Structure. LEAF STRUCTURES:

Plants and Light and Water transport. The Leaf Leaves are specialised structures for photosynthesis. They have several adaptation that suit them.

Plant structures What does a plant need for photosynthesis?

Leaves: Structure and Function. Main Functions 1. Principle sites of photosynthesis 6CO 2 + 6H 2 O 6O 2 + C 6 H 12 O 6 6CO 2 + 6H 2 O 6O 2 + C 6 H 12.

Aim: How are plants adapted to perform photosynthesis? HW: Test TOMORROW! Do Now: Photosynthesis Questions.

Structure of leaves.

Warm-Up #9 12/4/12 1) What are the 3 external plant layers? 2) Why are the top two layers clear? 3) What is the purpose of a stomata? 4) What controls.

PLANT TISSUES. 1) Dermal Tissue  Form outermost layer of plant (like the skin)  Protects plant  Allows substances in and out through the stomata (will.

Cross Section of a Leaf.

Plant structures What does a plant need for photosynthesis?

Aim: How do the structures of plants enable them to survive? RootsStems Leaves.

Bellringer Why is a daisy considered an autotroph?

Aim #36: How are plants adapted to perform photosynthesis?

Leaf Structure.

Cortex – tissue inside the epidermis, storage organ Endodermis – a single layer of cells that acts as a wall between cortex and pericycle. Pericycle –

The Leaf Tissues & Gas Exchange.  Air (gases) can enter cells via passive diffusion ◦ This would take a long time  Leaf has developed specialized cells.

UNIT 2 PART 5: PLANT STRUCTURE AND FUNCTION

Plants Form and Function. Parts of a Leaf What do these parts do?  Cuticle (waxy layer) and Upper Epidermis  Prevent Water Loss  Palisade Mesophyll.

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.

Leaf Adaptation. To know how leaves are adapted for photosynthesis.

Leaf Structure Aquaponics. Leaf Structure-Dermal layers Cuticle-The thin waxy covering on the outer surface of the leaf has a thin waxy covering This.

Chpt. 9 From Cell to Organism: Focus on Plants  How do multicelled organisms (i.e. plants) use specialized cells to accomplish the same functions as a.

The Leaf The Leaf is the Main photosynthetic organ in a plant. Controls gas exchange in plants. Controls the amount of water loss in plants when it is.

Leaf Structure.

UNIT 2 PART 5: PLANT STRUCTURE AND FUNCTION

Plant Tissues and Organs

L6: Plant Tissues and Organs

Internal Structure of the Leaf

Photosynthesis (leaf structure)

Leaf Structure Vascular plants.

Leaves Take it or leaf it!.

Leaf Tissues and Gas Exchange

LEAVES The organ of photosynthesis Contain chloroplasts/ chlorophyll

Tissues & organs.

Leaf Structures.

Transport in Plants.

Notes: Leaf Structure Cuticle Upper Epidermis Palisade Mesophyll

Plant cross-section.

B2 Photosynthesis Revision

Where does all that glucose come from?

Tissues, Chlorophyll, Canopy, Sun vs. Shade Leaves

Plant Adaptation Noadswood Science, 2012.

Presentation transcript:

Leaf Notes

Leaf Diagram

Evolution of Photosynthesis First organisms = heterotrophic Problem: Too many organisms, not enough food Certain cells gained the ability to produce food using sun energy

Leaf Structure and Function Leaf = Photosynthesis “Machine”

Parts of a Leaf Epidermis = tightly packed cells, outermost covering Cuticle = waxy surface covering, prevents water loss

Parts of a Leaf Palisade Mesophyll= tightly packed cells, upper side of leaf, does majority of photosynthesis Spongy Mesophyll= loosely packed cells, lower side of leaf, lots of gas space, not as much photosynthesis

Parts of a Leaf Vascular Tissue = transport water and food for leaf –Xylem= transports water and dissolved minerals –Phloem= transports sugars and nutrients

Parts of a Leaf Stomata= openings in the epidermis. Allow for gas exchange (O 2 and water vapor out and CO 2 in) Guard Cells = control opening and closing of stomates.

Stomata Regulation Lots of water = guard cells swell and open stomates (photosynthesis happens). Little water= guard cells shrink and stomates close (no photosynthesis).