BioLab3 Cell Membranes Lab Report Student Name: I. Diffusion Define the following terms. Solvent Solute Solution. Diffusion Concentration gradient Dynamic equilibrium EXERCISE 1 – Factors influencing rate of diffusion Predict how molecule size and temperature will affect the outcome of this experiment. Record the data from the information in the lab. Potassium Permanganate R.T. Methylene Blue R.T. Time (min) Total Diameter
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are missing (there may be others): Reproductive Physiology HOMEOSTASIS Homeostasis is the maintenance of relatively stable conditions of the internal environment. The “internal environment” is the extracellular fluid- the fluid outside the cells. The extracellular fluid is comprised of the plasma and the interstitial fluid. Homeostatic reflex arcs are stimulus response sequences that involve negative feedback and are designed to respond to a change in a variable by bringing the variable
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ACTIVITY 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. __The size and the concentration. ___ 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results compare with your prediction? __ The molecules were to large to go through. My results matched._ 3. Describe the results of the attempts to diffuse glucose and albumin through the 200 MWCO membrane. How well did the results compare with your
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B1: The permeability of the cell increases enormously during the action potential. Comte Whitney Electricity is vital for neural function and communication. The semi-permeable membrane and presence of charged particles in solution (ions)‚ enables the cell to have control of an electric potential. The cell The concentrations of Na+ and K+ ions upon either side of a cell’s membrane are not equal. In order for the equilibrium to be restored‚ sodium will attempt to enter the cell‚ whilst potassium will
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The movie The Notebook brings forth a great amount of emotion and affection. This story‚ originally written by author Nicholas Sparks‚ follows a couple through the ups and downs of love. The great portion of the movie is a flashback looking into the lives of two young people smitten for each other. Even when distance and other lovers separate them‚ the two find their way back to each other. In this movie the theory that love conquers all proves to be a major theme. This
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a) Using a human cell of your choice‚ describe how organelles work together to make and secrete a protein (LO1. AC 1.1) An epithelial cell in the thyroid gland‚ called a thyrocyte forms spherical follicles that produce a protein called thyroglobulin. This is a globular protein that has a functional role in metabolism. The protein is used by the thyroid gland to produce thyroid hormones; thyroxine (T4) is an example of one of the hormones created. Thyroxine is formed by iodine binding to tyrosine
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Questions 1. Yeast cells look like separate little spheres; they cannot walk or swim. Brainstorm methods by which yeast cells might communicate with each other. Record your list of possibilities in the space below. I. Signal Cascade II. Hormones III. Pheromones IV. Receptors embedded in the cell V. Growth near another cell Guided Activity: Table Charts Alpha – Type Culture Single Haploid Cells Budding Haploid cells Time 0 Field 1 3 3 Field 2 1 1 Field 3 8 2 Total per stage
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INET Lab Report 2 Microscope and the Cell Template Student: Mavon Riley Email: shantariley@yahoo.com Date: 09/05/2014 I. Purpose of the Microscope II. The Compound Microscope EXERCISE 2.1 – Label the parts of the compound microscope 1. Eyepiece 2. Arm 3. Course Adjustment 4. Fine Adjustment 5. Revolving Nose piece 6. Objective Lenses 7. Stage Clips 8. Stage 9. Iris Diaphragm Lever 10. Condenser 11. Light Source 12. Base EXERCISE 2.2 – Calculate microscope
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The Notebook is one of my favorite love movies of all time. The reason I love this movie so much is because that main characters Noah and Allie go through so many trials and finally end up together in the end. This movie I feel shows me how strong their love for each other really was and I now feel as if it is meant to be it will always find a way. Looking at the movie as a reference to get a better understanding of how lifespan development works‚ I realized that most of the trials that Noah and
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Macromolecules of Life Hands-On Labs‚ Inc. Version 42-0085-00-01 Lab Report Assistant ________________ Name: Akil Kelly Exercise 1: Testing for Proteins Data Table 1: Biuret results. Substance Tested Predicted Results Biuret Color & Number of drops added 1: Egg white Contains Protein Purple color – 9 drops 2: Pepsin Contains Protein Purple color – 9 drops 3: Sugar Doesn’t contain protein Blue
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