A&P1 - Ch 3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| A typical cell is aka... | show 🗑
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| show | 1. plasma membrane 2. cytoplasm (cytosol + organelles) 3. nucleus
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| Define the fluid mosaic model | show 🗑
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| show | Chemical interactions: Hydrophobic/hydrophilic arrangement of phospholipids, and raft formation
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| show | They form a more rigid floating platform, help organize functions at the membrane surface, contain richer supply of cholestrol, and they can pinch inward
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| show | Rigidity
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| Do water or water-soluble molecules pass easily through the membrane? Why? | show 🗑
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| show | Serve as identification markers. Cells can recognize "self."
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| Functions of membrane proteins | show 🗑
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| Smooth ER synthesizes... | show 🗑
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| show | Ca2+ from cell interior
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| show | Free ribosomes produce proteins for domestic use; bound ribosomes produce proteins for export out of cell or to be embedded in plasma membrane
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| Are all Golgi vesicles immediately transported to the cell membrane? | show 🗑
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| show | They are vesicles that pinch off from Golgi (therefore they are membranous)
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| What do lysosomes digest? | show 🗑
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| show | Residual body, which either is moved out of the cell or eaten by a macrophage.
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| Describe the structure of a proteosome | show 🗑
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| show | Proteins that have been tagged with ubiquitins. Proteins can either be misfolded proteins or regular proteins that are no longer needed.
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| show | To detoxify harmful substances.
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| Where are peroxisomes normally found in the body? | show 🗑
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| What is the main difference between lysosomes and proteosomes? | show 🗑
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| How many membranes are in a mitochondria | show 🗑
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| Mitochondria provide ___% of a cell's energy | show 🗑
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| show | Yes, they contain their own DNA and can undergo mitosis to produce equal daughter cells
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| The number of mitochondria in a cell can be directly related to... | show 🗑
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| Describe the nuclear membrane | show 🗑
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| What is the purpose of cytockeleal elements? | show 🗑
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| Do ribosomes and other organelles "freely" move about the cell? | show 🗑
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| Describe Microfilament (4) | show 🗑
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| Describe Intermediate Filaments | show 🗑
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| show | 1. Thickest of the fibers 2. Tiny hollow tubes composed of protein subunites 3. Function is to move things around the cell
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| Description and Function of Microvilli | show 🗑
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| Description and Function of Cilia | show 🗑
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| show | Cylinders made of microtubules - only found in human sperm
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| show | Fibers on cell outer surface interlock with each other, anchored internally by IF. Two types: SPOT, connecting adjacent membranes, BELT, encircle entire cell
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| Gap Junctions | show 🗑
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| show | Join adjacent cells by collars, molecules cannot permeate the cracks, found in the intestines
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Created by:
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