Essential Medical Bioscience and Introduction to Body Systems Practice Questions: Lectures 1 - 10 LECTURE 1: Keeping a clean and organized home and clutter-free work place is part of: A. Physical Health Dimension B. Social Health Dimension C. Environmental Health Dimension D. Mental Health Dimension E. Spiritual Health Dimension Building and maintaining effective relationships with family and friends is part of: A. Physical Health Dimension B. Social Health Dimension C. Environmental Health Dimension
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The small intestine (or small bowel) is the part of the gastrointestinal tract following the stomach and followed by the large intestine‚ and is where much of the digestion and absorption of food takes place. It receives bile juice and pancreatic juice through heptopancreatic duct‚ controlled by Spincter of oddi. Ininvertebrates such as worms‚ the terms "gastrointestinal tract" and "large intestine" are often used to describe the entire intestine. This article is primarily about the human gut‚ though
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Placement Biology ® AP Biology Lab 1 281 EDVO-Kit # Storage: Principles & Practice of Diffusion & Osmosis Store entire experiment at room temperature. EXPERIMENT OBJECTIVE The objective of this experiment is to develop an understanding of the molecular basis of diffusion and osmosis and its physiological importance. Students will analyze how solute size and concentration affect diffusion across semi-permeable membranes and how these processes affect water potential. Students will also
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involves rat blood in various solutions. I needed to understand certain terms before preforming this lab to be able to efficiently explain what is happening to the cells. Diffusion is the tendency of a substance to move down its concentration gradient from a more concentrated to a less concentrated area. Facilitated diffusion is the spontaneous passage of molecules and ions bound to a specific carrier protein across a biological membrane down their concentration gradient. Active transport is the
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ASBiology and Disease * Causes of disease * Pathogens Disease suggests a malfunction of the body or mind which has an adverse effect on good health For a micro-organism to be considered a pathogen it must * Gain entry to the host * Colonise the tissue of the host * Resist the defences of the host * Cause damage to the host tissues Pathogen Infection Disease Entry pathways * Gas exchange system * Digestive system Natural defences * Mucous layer
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Ca++‚ and Cl-‚ in and out of the cell from high concentration to low concentration. We used yellow popsicle sticks with a gap in-between which because it resembles a channel and shows the passage way of the protein. (D) Carrier Protein – facilitated diffusion of glucose. The carrier protein transports large molecules like amino acids and glucose from high concentration to low concentration. We used modeling clay with a large gap to show the large molecules are transported between through the carrier
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saturation kinetics? Competitive inhibition? 4. What can cross the cell membrane by simple diffusion? What cannot? Describe and define diffusion‚ osmosis‚ tonicity (hypertonic‚ hypotonic‚ isotonic—in animals and in plants). What does it cost animal cells not to have a cell wall or water vacuole? Does this demonstrate saturation kinetics? Why or why not? 5. Describe and understand facilitated diffusion in detail. What type of proteins are involved? How do they work? Which are faster? What
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Cell Unit Notes I. Life Processes - What makes something living? A. Biotic: Having life’s conditions Abiotic: Not having life’s conditions Homeostasis: The condition of maintaining a constant internal environment in living organisms. B. Characteristics of living Organisms (LIFE) 1. Nutrition - Food for energy and body (cell) repair and development 2. Transport - Move materials were needed in organism 3. Respiration - Able to generate energy for life processes
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Lecture: Plasma Membrane and Transport I. Structure of the Plasma Membrane A. plasma membrane - the surface encapsulating a cell B. Fluid Mosaic Model 1. bilayer of phospholipids a. hydrophilic heads - P04 end "water" "loving" attracted to water on inner/outer parts of cell b. hydrophobic tails - fatty acids "water" "fearing" attracted to each other on inside of bilayer c
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Environmental Toxicology ENV/410 November 3‚ 2014 Environmental Toxicology Every day‚ each and every individual is exposed to some form of toxicity. This could be in the form of toxic substances‚ toxic chemicals‚ or even toxic pollutants in the atmosphere. There are many materials within communities that could prove toxic and hazardous. Many of these substances pose great health concerns. Toxic chemical exposure in the United States can prove burdensome; especially in low-income communities. Most
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