KEY Cell Membrane.pdf - NAME KEY DATE PERIOD Cell Membrane...

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Unformatted text preview: NAME KEY DATE PERIOD Cell Membrane Coloring Worksheet Composition of the Cell Membrane c9 Funcflans The cell membrane is also called The _PLASMA membrane and is made of a phospholipid _BILAYER_. The phospholipids have a hydrophilic (waTer aTTracTing) _HEAD_ and Two hydrophobic (waTer repelling) _TAILS_. The head of a phospholipid is made of an alcohol and P_ group, while The Tails are chains of FAs . Phospholipids can move _FREELY_ and allow waTer and oTher _SMALL_ molecules To pass Through inTo or ouT of The cell. This is known as simple _DIFFUSION_ because iT does noT require _ENERGY_ and The waTer or molecules are moving _DOWN_ The concenTraTion gradienT. SKETCH AND LABEL a phospholipid coloring The heads red and The Tails blue. PHOSPHOLIPID (a) Phospholipid rnolecule \ u polar I head I I'IOhFTJDIaI' [ails AnoTher Type of lipid in The cell membrane is _CHOLESTERAL_ ThaT mcéléfegamgmgmébrane more fluid. Embedded in The phospholipid bilayer areiP QTEINS_ ThaT also aid in diffusion and in cell recogniTion. ProTeins called _INTEGRAL_ proTeins go all The way ThFJIEhThe bilayer, while _PERIPHERAL_ proTeins are only on one side. InTegral proTeins are also called _CHANNEL_ proTeins. Large molecules like _LIPIDS_ or carbohydraTes use proTeins To help move across cell membranes. Some of The membrane proTeins have carbohydraTe _RECEPTORS_ aTTached To help cells in recognize each oTher and cerTain molecules. LisT 4 funcTions of The cell or plasma membrane: 1 6i0lQo‘KYUflC'l—ION a. _Cell membranes help organisms maintain homeostasis by controlling what substances may enter or leave cells_ b. _exchange materials such as food, water, & wastes with its environment_ c. _water, oxygen, & carbon dioxide can move in and out freely_ d. _is semi—permeable or selectively permeable only allowing certain molecules to pass through_ Correctly color code and identify the name for each part of the cell membrane. Letter Name/Color Letter Name/Color _A_ Phospholipid bilayer (no _C_ Peripheral protein color) (red) _ _ Integral protein (pink) _AC__ Cholesterol (blue) _AB_ Fatty acid tails _D_ Glycoprotein (green) (orange) _AD_ Phosphate heads _E_ Glycolipids (purple) (yellow) March the cell membrane structure or its function with the correct letter from the cell membrane diagram. Letter Structure/Function Letter Structure/Function _AD_ Attracts water _AB_ Repels water _AC_ Helps maintain _A_ Make up the bilayer flexibility of membrane _C_ Involved in cell-to-cell _B_ Help transport certain recognition materials across the cell membrane Osmosis and Tonic/Ty Define osmosis. _MOVEMENT OF WATER DOWN CONCENTRATION GRADIENT_ In which direction does water move across membranes, up or down the concentration gradient? DOWN Define these 3 terms: a. isotonic— _CELL IS EQUILIBRIUM— 3 b. hypertonic _CELL IS IN SOLUTION THAT HAS A LOWER CONC OF WATER, CAUSING CELL TO SHRINK c. hypotonic _CELL IS IN SOLUTION THAT HAS A HIGHER CONC OF WATER, CAUSING THE CELL TO SWELL_ Use arrows to show the direction of water movement into or out of each cell. Color and label the cell in an isotonic environment light blue, the hypotonic environment yellow, and the hypertonic environment light green. 95‘1": WATER as?) WATER 100% WATER HYPERTONIC ISOTONIC HYPOTONIC March the description or p/‘cfure with The osmafic condifion: solution with a lower solute concentration solution in which the solute concentration is the same condition plant cells require condition that animal cells require A. Isorom'c _C— _A_ _C— _A_ 6'. Hypofom'c _C_ red blood cell bursts (cytolysis) _B_ _B_ _C— _C— B. Hyperrom‘c plant cell loses turgor pressure (Plasmolysis) solution with a higher solute concentration plant cell with good turgor pressure solution with a high water concentration Label the fonicify for each solution (isotonic, hypofonic, or hyperfonic): Ilium,I l._~_.l. ._ .-."ii”|-|E-«.-1 IL P" —' \ I Hi- '. ILI‘I ‘ll _Ill- ' -.- - " I-..I_.i 'nl"'_' ,l-"IH L _HYPO _ Transporf Requiring Energy What type of transport is represented by the following picture? _ACTIVE What energy is being used? _ATP _ In which direction (concentration gradient), is the movement occurring? _AGAINST(UP)__ Color the internal environment of the cell yellow. Color and Label the transport proteins red and the substance being moved blue. OUTSIDE CELL One Type of acTive TransporT is called The _Na/K_ pump which helps muscle cells conTracT. This pump uses _ENERGY_ To move ions ____UP The concenTraTion gradienT. The proTein ThaT is used To pump The ions Through is called a _CARRIER_ proTein and iT changes iTs _SHAPE_ To move The ions across The cell membrane. Label and color The carrier proTeins red and The ions green. M}? Iii}: ® INST]? 3MB ...
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