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Courtney Valencia

Physiology Study Stack 1

QuestionAnswer
What is homeostasis The relatively constant state maintained by the body
What are examples of homeostasis Temperature regulation Regulation of blood carbon dioxide level Regulation of blood glucose level
What are the 4 basic components of control mechanisms 1. Sensor mechanism 2. Integrating (control) center 3. Effector mechanism 4. Feedback
What is the difference between negative feedback and positive feedback Negative feedback is inhibitory. It negates changes in a variable. Positive feedback is stimulatory. It amplifies, or reinforces, the change
What are the 3 levels of control Intracellular, intrinsic, extrinsic
Name the 3 types of carbohydrates 1. monosaccharides 2. disaccharides 3. polysaccharides
What are the major roles of lipids Energy source, structural role, integral parts of cell membranes
What pentose sugars are DNA and RNA made of? DNA: deoxyribose RNA: ribose
What are the two types of endocytosis Phagocytosis - condition of cell eating Pinocytosis - condition of cell drinking
Compare catabolism to anabolism Catabolism breaks large molecules into smaller ones and releases energy. Anabolism buils large molecules from smaller ones and consumes energy
What are the cell division phases 1. Prophase 2. Metaphase 3. Anaphase 4. Telophase
What is articulation Point of contact between bones
What are the two classification of joints Structural and functional
What are the characteristics of skeletal muscle cells - Excitability (irritability): ability to be stimulated. - Contractility: ability to contract or shorten and produce body movement. - Extensibility: ability to extend or stretch thereby allowing muscles to return to their resting strength
What are the 4 different kinds of protein molecules that make up myofilaments Myosin, Actin, Tropomyosin, Troponin
Created by: courtneykole
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