Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Describe the basic components of a plasma membrane and explain in detail the asymmetry that occurs in a red blood cell in terms of the membrane and the associated proteins.
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- summarizes several of the many types of transporters in the cells of the human body. List a few ways in which the variety of transport mechanisms shown here relate to the general principle of physiology that homeostasis is essential for health and survival.arrow_forwardb. Cell Type: How many layers do you see?arrow_forwardLabel the nucleus, cytoplasm, and cell membrane of the following pictures. The red one is the human red blood cell under HPO, while the orange one is the toad red blood cell. Describe each cell and compare the two.arrow_forward
- A patient has had a serious accident and lost a lot of blood. In an attempt to replenish body fluids, a large amount of distilled water was transferred directly into one of his veins. What will be the most probable result of this transfusion? It will have serious, perhaps fatal, consequences because the red blood cells will be hypertonic relative to the body fluids and the cells will burst. It will have serious, perhaps fatal, consequences because the red blood cells will be hypotonic relative to the body fluids and the cells will shrivel. It will have no unfavorable effect as long as the water is free of viruses and bacteria. It will have no serious effect because the kidneys would quickly eliminate the excess water. It will have serious, perhaps fatal, consequences because there will be too much fluid for the heart to pump.arrow_forwardWhat is the cause of the impermeability of plasma membranes to water-soluble molecules? Group of answer choices the nonpolar nature of water presence of phospholipid bilayer with a nonpolar/hydrophobic interior region presence of transmembrane proteins the presence of cellulosearrow_forward4) Two membrane preparations have been made from the plasma membrane of erythrocytes (i.e red blood cells) and are being maintained in an isotonic buffer solution: (1) right-side-out membrane vesicles, in which the exoplasmic leaflet of the vesicle faces the buffer (equivalent in orientation to that of the exoplasmic leaflet of the intact plasma membrane); and (2) inside-out membrane vesicles in which the exoplasmic leaflet faces the interior of the vesicles and the cytoplasmic leaflet faces the buffer. 80 a. Right-side-out vesicles (ROVS) Very Low Fluorescence Inside-out vesicles (IOVS) Very High Fluorescence A newly discovered phosphoglyceride, called phosphotidylalanine is currently being studied. Annexin V is a protein that binds to phosphatidylalanine, which is one of the phospholipids present in the cell membrane preparations described above. Fluorescently labeled Annexin V is mixed with each vesicle preparation. The vesicles are washed to remove unbound Annexin V and then…arrow_forward
- Summarize the mechanisms of uptake of large molecules and particles by the plasma membrane.Explain the processes of phagocytosis, pinocytosis, and clathrin-mediated endocytosis. Describe recycling of cell surface receptors, including the role of vesicular acidification in the cycle.arrow_forwardDescribe the chemical composition of membranes. What are the two most critical functions of membranes? What contributes to membrane fluidity and rigidity? Explain Diffusion. What are the differences between Osmosis and Dialysis? Explain the differences between Iso, Hypo, and Hypertonic conditions. If the solutions is Hypertonic then the cell would be?arrow_forwardWhat is an example of active transport in the body?arrow_forward
- Explain simple diffusion, facilitated diffusion, and osmosisarrow_forwardWhat is the Description and Examples in the body of these Cell transport? Explain in 2-3 sentencesDescription:Examples in the body: 1. Bulk Transport 2. Phagocytosis 3. Pinocytosis 4. Receptor-Mediated Endocytosisarrow_forwardDescribe the similarities and differences between the dialysis bag and a cell membrane. Be specific. If you want water to flow out of a dialysis bag filled with a 50 percent sucrose solution what would be the minimum concentration of the beaker solution need to be?arrow_forward
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