charlottej / chapter7-8-campbellbiology

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Row ID	question	correct answer	wrong answer 1	wrong answer 2	wrong answer 3
1	o	o	o	o	o
2	The plasma membrane is best described as	A fluid mosaic	Completely rigid	Made only of protein	A solid wall
3	Phospholipids are arranged in a bilayer because they are	Amphipathic	Nonpolar	Fully hydrophilic	Ionic
4	The hydrophilic part of a phospholipid is the	Phosphate head	Fatty acid tail	Steroid ring	Glycerol backbone
5	The hydrophobic region of a phospholipid is the	Fatty acid tails	Phosphate group	Protein channel	Carbohydrate chain
6	Membrane fluidity is most affected by	Temperature and lipid composition	Cell size	pH only	ATP concentration
7	Cholesterol functions in membranes by	Maintaining fluidity	Providing energy	Transporting ions	Acting as enzyme
8	Integral membrane proteins are	Embedded in the lipid bilayer	Loosely attached to surface	Carbohydrates only	Free in cytosol
9	Peripheral membrane proteins are	Attached to membrane surface	Embedded deeply in bilayer	Lipids only	Transport channels
10	Membrane carbohydrates are mainly involved in	Cell recognition	Energy storage	Protein folding	ATP synthesis