PPT-Plant Hormones - Responding to Stimuli…

Chemicals that are made in one part of an organism but affect another part of the organism Allows a plant to respond to some stimulus in the environment Allows it to bloom at an appropriate time Allows it to grow toward a light source. How Plants Respond to External . Stimuli. Essential Standards. 6.L.. 2 Understand . the flow of . energy through . ecosystems and the responses of populations to . the biotic . and . abiotic. factors in their environment.. Tropisms. Uses of plant hormones. How do plants always grow the right way up?. What conditions will affect how a plant grows?. Plants are very sensitive and their growth is affected by . their environmental conditions.. L2: Hormones. Learning Objectives:. Describe what a hormone is.. Describe the menstrual cycle and the role of hormones.. Explain how hormones play a role in contraceptives and fertility treatments.. Describe the role of plant hormones in plant development.. Plant . hormones . are chemical signals that modify or control one or more specific physiological processes within a plant. © 2011 Pearson Education, Inc.. The Discovery of Plant Hormones. Any response resulting in curvature of organs toward or away from a stimulus is called a . How Plants Respond to External . Stimuli. Essential Standards. 6.L.. 2 Understand . the flow of . energy through . ecosystems and the responses of populations to . the biotic . and . abiotic. factors in their environment.. . Growth Retardants. . Synthetic and natural growth retardants are sold under the trade names A-Rest. ®. , B-Nine. ®. , Bonzi. ®. , Sumagic. ®. , Cycocel. ®. , and others.. Used on florist crops such as poinsettia & chrysanthemum.. Write down two differences between the hormonal system and nervous system . Nervous system – nerve cells pass electrical impulses along their length and stimulate target cells by neurotransmitters. Congratulations! You found the presentation!. I hope that you are behaving and having a wonderful day!. By the end of this PowerPoint you will be a PRO at manipulated and responding variables! . Woohoo. Mrs. Alpert. PLANT MOVEMENT. Higher plants, being fixed to soil, cannot move from place to place. Really, have you ever seen a tree with legs?! Yikes.. . . . However….. . within. the plant body various mechanisms are in constant motion!. Outline 1. Identification and Measurement of Stimulus Control. Differential Responding and Stimulus Control. Stimulus Generalization. Stimulus Generalization Gradients as Measures of Stimulus Control. Fig. 32-1a, p.540. Impacts, Issues: . . Foolish Seedlings, Gorgeous Grapes. . . Hormones – signaling molecules that stimulate or inhibit gene activity. Gibberellins are a class of plant hormones that stimulate stem lengthening. Plant Growth and Development. Hormones . diffuse throughout the plant to promote growth and development.. What is a Plant Hormone?. A . naturally-occurring. compound which regulates change in . physiology. Dr. Anju Singh. Assistant Professor . School of Pharmaceutical Sciences. CSJMU, Kanpur. Plant Hormones and Their Applications. Plant hormones or phytohormones are chemicals that regulate plant growth. Plant hormones are signal molecules produced within the plant and occur in extremely low concentrations. Hormones regulate cellular processes in targeted cells locally and then moved to other locations, in other locations of the plant. They affect gene expression and transcription levels, cellular division, and growth. There are five major classes of plant hormones.. Article 3: . Responding to an Emergency Plant Pest under the EPPRD. This graphic pack support the . Industry . resource toolkit . – . an educational series aimed at providing Plant Health Australia (PHA) Plant Industry Members with a resource...