Simple Diffusion Activity 1: Simulating Simple diffusion 1. What is the molecular weight of Na+? 22.99 2. What is the molecular weight of Cl-? 35.45 3. Which MWCO dialysis membranes allowed both of these ions through? 50‚ 100‚ and 200 4. Which materials diffused from the left beaker to the right beaker? NaCl‚ Urea‚ and Glucose at MWCO 200 5. Which did not? Why? Albumin‚ too large to diffuse Activity 2: Simulating Dialysis 1. What happens to the urea concentration in the left beaker
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Lab 4: Cell Structures and the Gram Stain Purpose: The purpose of this lab is to familiarize the student with the use of a compound microscope and the Gram Stain test. Students will review a brief video and slides to introduce the compound microscope. Students will also view a video about the Gram Stain procedure and then answer questions related to it. Hypothesis If I look at the slides I will see where the cell wall is and what lies inside it and in the Gram Stain if I watch the video I will
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Introduction to Prokaryotes in Different Temperature Environments Angelina Orozco Biology 1108 Wednesday 7:30 am Abstract Prokaryotes are single-celled organisms that can survive in extreme environments. Bacteria is the more numerous type of prokaryotes. The group hypothesizes that the samples taken from different environments will all cultivate diverse morphology in fast growing rates in each environment. The aseptic technique was used to cultivate bacteria from different environments. The
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on chemistry. Cells are considered to be the smallest structure that is alive. They are often too small to see without the aid of a microscope. All living organisms are composed of cells. The smallest organisms are composed of a single cell; larger organisms are composed of more than one cell. Similar kinds of cells may be arranged together to form a tissue. Tissues have specific properties and functions. For example muscle tissue is composed of muscle cells. It functions to move body components
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Brain Structures and Functions Worksheet PSY/340 Version 3 1 University of Phoenix Material Brain Structures and Functions Worksheet Provide a brief description for each of the following functions: 1. Basal ganglia Controls cognition‚ movement coordination‚ voluntary movement. 2. Corpus collosum Thick nerve fibers that connect both brain hemispheres. 3. Temporal lobe Located on the sides of the cerebral hemisphere. Deals with talking and hearing. 4. Occipital lobe Located
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p.92\ a.1 Eukaryotic Cell vs Prokaryotic Cell All cells can be classfied into prokaryotes and eukaryotes. Prokaryotes were the only form of life on Earth for millions of years until more complicated eukaryotic cells came into being through the process of evolution. Comparison chart All attributes Differences Similarities | Eukaryotic Cell | Prokaryotic Cell | Nucleus: | Present | Absent | Number of chromosomes: | More than one | One--but not true chromosome: Plasmids | Cell Type: | Multicellular
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Functions and structure of plant terpenes Terpenes are an enormous class of organic compounds‚ that are produced by a wide variety of plants and fungi‚ especially conifers. Terpenes are also produced by some of the living organisms‚ like swallowtail butterflies. They emit terpenes from their osmeterium. Terpenes are important materials for a plant as components of its body and as a material to protect it from external enemies since it has a strong smell and colorless. Terpenes are found in biological
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stress reduction. 60 Chapter 14: Organizational Structure Chapter Summary Questions and Exercises prepared by Alan Saks. I. What Is Organizational Structure? Organizational structure is the manner in which an organization divides its labour into specific tasks and achieves coordination among these tasks. It broadly refers to how the organization’s individuals and groups are put together or organized to accomplish work. Organizational structure intervenes between goals and organizational accomplishments
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Cell Parts and Functions Table | Cell Organelle | Cell Function | Nucleus | Directs all cell activities "Brain or Control Center of cell" | Nuclear Envelope (Membrane) | Controls what passes in and out of the nucleus | Cytoplasm | Jelly-like substance found inside cell that acts as a medium for chemical reactions within the cell | Golgi Body (Apparatus) | Packages the proteins made by the ribosomes so they can be sent out of the cell. The UPS store of the cell | Mitochondrion | "powerhouse
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Select and complete one of the following assignments: Option 1: Ecosystem Components Paper Option 2: Ecosystem Components Video and Summary Option 1: Ecosystem Components Paper Select a representative natural ecosystem in your area or one that you are interested in—such as a lake‚ preserve‚ or park—that is managed for native species. • Write a 700- to 1‚050-word paper explaining the following: o The major structural and functional dynamics (processes) of that ecosystem including
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