'Cork cambium' diaporamas de présentation

Plant Organs: Stems

Plant Organs: Stems. Chapter 7. LEARNING OBJECTIVE 1. Describe three functions of stems. Stem Functions . Support leaves and reproductive structures Conduct water, dissolved minerals, carbohydrates Produce new living tissues at apical meristems

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Ch. 35: Plant Structure and Growth

Ch. 35: Plant Structure and Growth. The Plant Body A. Consists mainly of three parts: 1. Roots 2. Stems 3. Leaves B. Comparison of monocots v. dicots. The basic morphology of a plant has two systems: 1. Root System : anchor the plant in the soil,

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Plant tissues

Plant tissues. The vascular plant sporophyte is usually composed of three kinds of vegetative organs: roots stems leaves These organs are constructed by some types of plant tissues.

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Chapter 23: Plant Form and Function

Chapter 23: Plant Form and Function. Chapter 23: Plant Form and Function. Gross Anatomy of a Plant ( Angiosperm = Flowering Plant ):. 1) Root System. Anchor plant Absorb water / nutrients Store surplus sugars Transport materials from / to shoot

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Chapter 25 Plant Tissues (Sections 25.7 - 25.9)

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Unit 7 Plants

Unit 7 Plants. Ch. 23 Roots, Stems, & Leaves. Seed Plant Structure. 3 of the principal organs of seed plants are roots, stems, & leaves The root system of a plant absorbs water & dissolved nutrients. Seed Plant Structure.

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The Environment and Plant Responses

The Environment and Plant Responses. Quiz 13B. Plant Growth. Plants respond to their environment by the way they grow or do not grow. Plant Growth. Growth in plants can result in an increase in length, or an increase in thickness, or both. Plant Growth.

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TA Info

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Lecture 19: Plant Structure and Function

Lecture 19: Plant Structure and Function. Plant structure can be divided into two systems: roots and shoots. Parts under ground Used for anchorage Used for absorption of water and nutrients. The Root System. Tap root. Fibrous root.

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What is Growth ?

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Plant Tissues: Overview

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Plant Science HL

Plant Science HL. Red Book Sections: 9.1 to 9.3. Dicotyledonous: Stem Tissue. Pith: a storage and support area. Cortex: helps with the support. Epidermis: mostly there for protection, may allow gas exchange. Xylem: carries water and dissolved minerals from the roots to the leaves.

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Plant Science HL

Plant Science HL. Red Book Sections: 9.1 to 9.3. Dicotyledonous: Stem Tissue. Pith: a storage and support area. Cortex: helps with the support. Epidermis: mostly there for protection, may allow gas exchange. Xylem: carries water and dissolved minerals from the roots to the leaves.

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Chapter 29.7

Chapter 29.7. A Closer Look At Wood and Bark. AP Biology Spring 2011. Formation of Bark. As tree ages inner core of xylem continues its outward expansion Resulting pressure is directed toward the stem or root surface Will rupture the cortex and outer part of secondary phloem

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collenchyma

collenchyma. Parenchyma cells. phloem. Vascular bundle. xylem. Plant Tissue Cell Types. Parenchyma primary walls thin and flexible; no secondary walls; large central vacuole; most metabolic functions of plant (chloroplasts)

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Plants Part 2: Stems

Plants Part 2: Stems. Text ref 12.3. Functions. Connect vascular tissue of leaves to roots Transport Raise and support leaves and reproductive organs Maximize sunlight Position for pollination Some are specialized for photosynthesis, storage, protection. Structure.

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Parts of a Seed

Parts of a Seed. Mature embryo: was formed by mitosis root tip, shoot tip, cotyledon(s) Seed coat: formed from maternal flower tissue, encloses embryo and endosperm to protect seed. Endosperm: surround embryo and provides nourishment

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Topic 14.1 The Structure & Growth of Flowering Plants

Topic 14.1 The Structure & Growth of Flowering Plants. Biology 1001 November 14, 2005. III. PLANT HORMONES. Hormones are chemical signals that coordinate the parts of an organism

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Primary and Secondary Growth in Plants

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Figure 35.18 Primary and secondary growth of a stem (layer 1)

(a) Primary and secondary growth in a two-year-old stem. 1. Pith. Primary xylem. Epidermis. Vascular cambium. Cortex. Primary phloem. Figure 35.18 Primary and secondary growth of a stem (layer 1). (a) Primary and secondary growth in a two-year-old stem. 3. 1. 2. 4. Pith.

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