Diffusion and Osmosis NGSSS: SC.912.L.14.2 Relate structure to function for the components of plant and animal cells. Explain the role of cell membranes as a highly selective barrier (passive and active transport). SC.912.L.14.3 Compare and contrast the general structures of plant and animal cells. Compare and contrast the general structures of prokaryotic and eukaryotic cells. AA Background: (Source: www.explorelearning.com) Diffusion is the process in which there is a net movement of
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that are selectively permeable. In other words‚ they allow certain things in and certain substances are not allowed to enter the inside of the cell. Osmosis is the process of water movement across the membranes from an area of high water concentration to an area of low water concentration to reach a sense of equilibrium. Diffusion is what enables osmosis to occur.
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b.) The mass decreased or increased in each cylinder‚ depending on if the solution was hypotonic‚ hypertonic or isotonic. In Cylinder (A) the mass decreased‚ so liquid was released from the potato‚ because the cells in the potato would have burst if even more was absorbed‚ whereas the length stayed the same. In Cylinder (B) the mass and length increased‚ which means the potato cells absorbed some Sodium Chloride (NaCl)‚ so the cells don’t shrivel up and die. For Cylinder 3 the mass and length also
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AP - Lab Report Name: Jenny Strohbeck Section: A and P 1 Online The Axial & Appendicular Skeleton Purpose: What is the purpose of this exercise? Is there any safety concerns associated with this exercise? If so‚ list what they are and what precautions should be taken. To identify 3 main bone groups and describe different vertebra Exercise 1: The Skull QUESTIONS: A. Name the eight bones of the cranium. frontal bone‚ 2 parietal bones‚ 2 temporal bones‚ occipital
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Title: Potato Osmosis Abstract: In this experiment was designed to study the effect of a concentrated solution applied to white and sweet potatoes. The solution’s impact among the potatoes were to be either hypertonic‚ hypotonic‚ or isotonic. The potatoes were first cut into fries with a fry cutter‚ and then weighed after being cut. The white and sweet potatoes’ weights ranged from .005-.015 grams. A total of 18 sugar solutions are to be made over the course of 3 trials. In each trial‚ 6 different
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BSC 2086C: Anatomy and Physiology I Lab 2: The Chemistry of Life Name ____ Directions: There are eight (8) activities in this lab. Please be sure to complete them all. For all questions‚ type your answers into the yellow box ____ (including your name above) it will expand as you write. Activity 1 1-1: Insert the chemical symbol in the answer blank for each of the following elements. ____ 1. oxygen ____ 2. carbon ____ 3. potassium ____ 4. iodine ____ 5. hydrogen ____
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Bonnie Bell Mrs. Legary Biology P.6 21‚ Sept. 2011 Milk Lab Final This investigation consists of testing the reaction between milk‚ food coloring‚ and dishwashing soap. Different kinds of milk were tested‚ depending on the amount of milk fat content. The investigation was based on 2 questions. Lab one’s problem statement‚ using only milk fat and food coloring was: How does food coloring react in different kinds of milk fat? The second lab’s problem statement‚ using milk fat‚ food
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Stephen White Biology Lab 11.1 Observations of the spicules of a sponge Supplies Microscope Prepared slide: Sponge Lab notebook Colored pencils Natural Sponges Hypothesis We will learn more in depth about sponges and the complexity of this animal Procedure Set up microscop as instructed in previous expiraments. Place the prepared slide under the microscope. Obeserve under low power and draw what you see in your notebook. This slide shows you the spicules‚ wich make
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Section: BIO 202 Lab Report: Cardiovascular Anatomy Please fill out this report and submit it to the dropbox. Do not hand in your own form. It will not be graded and you will receive a zero for the lab. You must get all parts of the question correct to get credit for the question * Please note that although you do not hand in items in observations‚ it is very important to do these as you may see some of these items on future/associated lab quizzes or be asked about some of these concepts
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Advanced 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
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