PPT-Chapter 39 Plant Responses to Internal and External Signals

Overview Stimuli and a Stationary Life Plants being rooted to the ground must respond to environmental changes that come their way For example the bending of a seedling toward light begins with sensing the direction quantity and color of the light. to . what populations do our study results apply. ? . Epidemiology . matters: a new introduction to methodological foundations. Chapter . 12. Seven steps. Define . the population of . interest. Conceptualize . According to the acid growth hypothesis, what is the correct sequence in which the following events leading to . auxin. -induced cell elongation occur?. 1, 2, 3 d) . 3. , 2, 1. 1, 3, 2 e) . 3. , 1, 2. Multi-Cellular (many cells). Heterotrophs. Obtain food & oxygen. Keep internal conditions in balance. Move. Reproduce. Fish, Amphibians, Reptiles, Birds, & Mammals. Have backbones, an internal skeleton (endoskeleton), skin & muscles. Plant Hormones. Hormones are chemical signals that coordinate the various parts of an organism. A hormone is a compound produced in one part of the body which is then transported to other parts of the body, where it triggers responses in target cells and tissues. All About Neurons. Neurons. are highly-specialized cells used by the nervous system to detect signals and transmit them to other neurons or response . effectors. (muscles or glands). Neuron Anatomy. External Cost . Reporting. Principles of Cost Analysis and Management. 1. What Do Accountants Do?. 2. Terminal Learning Objective. Action: . Determine the difference between Internal and External Cost . External Cost . Reporting. Principles of Cost Analysis and Management. 1. What Do Accountants Do?. 2. Terminal Learning Objective. Action: . Determine the difference between Internal and External Cost . Organisms use feedback mechanisms to regulate growth and reproduction, and to maintain dynamic homeostasis.. Growth and dynamic homeostasis of a biological system are influenced by changes in the . system’s environment. . Organisms use feedback mechanisms to regulate growth and reproduction, and to maintain dynamic homeostasis.. Growth and dynamic homeostasis of a biological system are influenced by changes in the . system’s environment. . Growth Responses. Lecture Outline. 1. Outline. 26.1 Plant Hormones. 26.2 Plant Responses. 2. 26.1 Plant Hormones. Flowering plants respond to environmental stimuli such as:. Light, gravity, carbon dioxide levels, pathogen infection, drought, and touch.. Stimulus. Any change in an organism’s . internal . or . external. environment that causes the organism to react to the change.. Stimuli – plural (more than one stimulus). Response. The reaction of an organism to a stimulus.. 1. environment-. Everything that surrounds a living thing. 5. . stimulus-. a. nything that causes a living thing to react. 2. . e. xternal stimulus -. Anything in an organism’s environment that causes it to react. Match up definitions. Stimulus. Receptor. Coordinator. Effector. Response. A cell, tissue, organ or system that carries out a response. A change brought about due to a stimulus. A detectable change in the internal /external environment. Marco Brunato, Intertek SAI Global & Anastasia Hryciw de Reijke, NSF. . Introductions. Facilitators: . Marco Brunato, Intertek SAI Global;. Anastasia Hryciw de Reijke, NSF. Participants:. Name, OA/Municipality, Role regarding DWQMS.