'Nastic movements' presentation slideshows

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Plant Hormones and Tropisms Response in Plants

Plant Hormones and Tropisms Response in Plants. TROPISM. is a biological phenomenon, indicating growth or turning movement a plant demonstrates in response to an environmental stimulus. TROPISM. POSITIVE. NEGATIVE. If the plant moves AWAY from the stimulus.

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Table of Contents

Plant Responses. Chapter 31. Table of Contents. Section 1 Plant Hormones Section 2 Plant Movements Section 3 Seasonal Responses. Section 1 Plant Hormones. Chapter 31. Objectives. List the actions of the five major types of plant hormones.

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Plant Hormones and Responses

Plant Hormones and Responses. Environmental Factors. Etiolation (absence of light). Greening (presence of light). Signal Reception. More complicated. Hormones. Hormones. Early Experiments. Discovery of Auxin. Activity of Auxin. Gibberellins. Ethylene.

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KEY CONCEPT Plant hormones guide plant growth and development.

KEY CONCEPT Plant hormones guide plant growth and development. Hormones are chemical messengers. produced in one part of an organism stimulates or suppresses activity in another part Often have adaptive advantages. Plant hormones regulate plant functions. Gibberellins Ethylene

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Growth and development in plants

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