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Chapter 2 Study Guide

Chapter 2 Study Guide - KIN 2500 Ch 2 Cytology review...

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KIN 2500 Ch 2: Cytology review worksheet Identify these 4 main sections of the cell: 1. _________________- internal structures with specific functions that are found in the cytoplasm in the cell 2. _________________- the intracellular/extracellular boundary 3. _________________- substances between the nucleus and the plasma membrane where other structures are embedded, there is a cytoskeleton running through it 4. _________________- a specialized storage cell Functions of the PM: 1. 2. 3. 4. PM components: 1. Lipids a. ___________ a.i. Made from phosphor heads and lipid tails a.ii. Bilayer b. ___________ b.i. Carbohydrate chain attached to phospholipids c. ___________ c.i. Carbohydrate + protein d. Glycocalyx d.i. The “sugary coating” surrounding the membrane made up of the carbohydrate portions of the glycolipids and glycoproteins e. ___________ e.i. Assists in the viability of the PM 2. Integral proteins a. Controls entry and exit of material from the cell b. Pore: ______________________ c. Gated varieties of proteins: c.i. Passive leakage c.ii. Chemically gated c.iii. Voltage gated 3. Peripheral proteins a. Function: Movement across the PM: 1. ____________ (does not use ATP) a. Concentration gradient a.i. Moves to areas of __________ ____________ a.ii. Cell DOES/DOES NOT expend energy b. Diffusion b.i. Some gates always open, some randomly close
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b.ii. Material moves according to _________ _________ c. Facilitated diffusion c.i. Involves __________ proteins d. Osmosis d.i. Specifically related to _______________________________ d.i.1. Isotonic d.i.2. Hypotonic d.i.3. Hypertonic e. Filtration e.i. Power source from OUTSIDE the cell 2. _______________ (requires use of ATP) a. Sodium potassium pump a.i. Maintains a low level of sodium INSIDE/OUTSIDE the cell and a high level of potassium INSIDE/OUTSIDE the cell a.ii. Concentration must be maintained at a certain ___________ level a.iii.
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Chapter 2 Study Guide - KIN 2500 Ch 2 Cytology review...

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