Composition of the Cell Membrane & Functions The cell membrane is also called the ___Plasma Membrane____________ membrane and is made of a phospholipid _____________. The phospholipids have a hydrophilic (water attracting) __________ and two hydrophobic (water repelling) ____________. The head of a phospholipid is made of an alcohol and __________ group, while the tails are chains of ____________. Phospholipids can move _______________ and allow water and other _________ molecules to pass through into or out of the cell. This is known as simple ____________ because it does not require __________ and the water or molecules are moving __________ the concentration gradient. SKETCH AND LABEL a phospholipid coloring the heads red and the tails blue. PHOSPHOLIPID Another type of lipid in the cell membrane is ______________ that makes the membrane more fluid. Embedded in the phospholipid bilayer are __________ that also aid in diffusion and in cell recognition. Proteins called _____________ proteins go all the way through the bilayer, while ____________ proteins are only on one side. Integral proteins are also called __________ proteins. Large molecules like ___________ or carbohydrates use proteins to help move across cell membranes. Some of the membrane proteins have carbohydrate __________ attached to help cells in recognize each other and certain molecules. List 4 functions of the cell or plasma membrane: 2 a. _________________________________________ b. _________________________________________ c. _________________________________________ d. ________________________________________
Cell Membrane Coloring Worksheet
Composition of the Cell Membrane & Functions
The cell membrane is also called the ___Plasma
Membrane____________ membrane and is made of a phospholipid
_____________. The phospholipids have a hydrophilic (water
attracting) __________ and two hydrophobic (water repelling)
____________. The head of a phospholipid is made of an alcohol and
__________ group, while the tails are chains of ____________.
Phospholipids can move _______________ and allow water and other
_________ molecules to pass through into or out of the cell. This is
known as simple ____________ because it does not require
__________ and the water or molecules are moving __________ the
concentration gradient. SKETCH AND LABEL a phospholipid coloring
the heads red and the tails blue.
PHOSPHOLIPID
Another type of lipid in the cell membrane is ______________
that makes the membrane more fluid. Embedded in the phospholipid
bilayer are __________ that also aid in diffusion and in cell
recognition. Proteins called _____________ proteins go all the way
through the bilayer, while ____________ proteins are only on one
side. Integral proteins are also called __________ proteins. Large
molecules like ___________ or carbohydrates use proteins to help
move across cell membranes. Some of the membrane proteins have
carbohydrate __________ attached to help cells in recognize each
other and certain molecules.
List 4 functions of the cell or plasma membrane:
2
a. _________________________________________
b. _________________________________________
c. _________________________________________
d. ________________________________________
Correctly color code and identify the name for each part of the cell
membrane.
3
Letter Name/Color Letter Name/Color
_____ Phospholipid bilayer (no
color)
_____ Peripheral protein
(red)
_____ Integral protein (pink) _____ Cholesterol (blue)
_____ Fatty acid tails
(orange)
_____ Glycoprotein (green)
_____ Phosphate heads
(yellow)
_____ Glycolipids (purple)
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