Name________________________________________ Period-Teacher__________________________ Due Date______________________ PAP Biology Cell Transport Study Guide 3 3.3 KEY CONCEPT The cell membrane is a barrier that separates a cell from the external environment. VOCABULARY cell membrane selective permeability phospholipid Receptor protein fluid mosaic model Marker protein Channel/carrier transport protein MAIN IDEA: Draw a phospholipid bilayer in the box below. Label the hydrophilic heads and hydrophobic tails. 2. Place a check mark in the appropriate box to show which parts of a phospholipid are charged, or polar, and which parts are nonpolar. Phospholipid part Polar (charged) Nonpolar Phosphate group and glycerol (Head) Fatty acid tail A cell membrane has other types of molecules embedded in the phospholipid bilayer. Fill in the type of protein that performs each function indicated in the sentences below: Use transport, marker, and receptor. 3. ________________ protein functions in communication by sending and receiving chemical messages.
Name________________________________________ Period-Teacher__________________________ Due Date______________________ PAP Biology Cell Transport Study Guide 3 3.3 The cell membrane is a barrier that separates a cell from the external environment. VOCABULARY cell membrane selective permeability phospholipid Receptor protein fluid mosaic model Marker protein Channel/carrier transport protein MAIN IDEA: Draw a phospholipid bilayer in the box below. Label the hydrophilic heads and hydrophobic tails. 2. Place a check mark in the appropriate box to show which parts of a phospholipid are charged, or polar, and which parts are nonpolar. Phospholipid part Polar (charged) Nonpolar Phosphate group and glycerol (Head) Fatty acid tail A cell membrane has other types of molecules embedded in the phospholipid bilayer. Fill in the type of protein that performs each function indicated in the sentences below: Use transport, marker, and receptor. 3. ________________ protein functions in communication by sending and receiving chemical messages. KEY CONCEPT
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