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,Chapter 1. The Cell As A Unit Of Health And Disease
1 The Nucleus , Which Is Essential For Function
AndSurvival Of The Cell.
A) Is The Site Of Protein Synthesis
B) Contains The Genetic Code
C) Transforms Cellular Energy
D) Initiates Aerobic Metabolism
2 Although Energy Is Not Made In Mitochondria, They Are
KnownAs The Power Plants Of The Cell Because They:
A) Contain Rna For Protein Synthesis.
B) Utilize Glycolysis For Oxidative Energy.
C) Extract Energy From Organic Compounds.
D) Store Calcium Bonds For Muscle Contractions.
3 Although The Basic Structure Of The Cell Plasma Membrane
IsFormed By A Lipid Bilayer, Most Of The Specific
Membrane Functions Are Carried Out By:
A) Bound And Transmembrane Proteins.
B) Complex, Long Carbohydrate Chains.
C) Surface Antigens And Hormone Receptors.
D) A Gating System Of Selective Ion Channels.
4 To Effectively Relay Signals, Cell-To-Cell
CommunicationUtilizes Chemical Messenger Systems
That:
A) Displace Surface Receptor Proteins.
B) Accumulate Within Cell Gap Junctions.
C) Bind To Contractile Microfilaments.
D) Release Secretions Into Extracellular Fluid.
,5 Aerobic Metabolism, Also Known As Oxidative
Metabolism,Provides Energy By:
A) Removing The Phosphate Bonds From Atp.
B) Combining Hydrogen And Oxygen To
FormWater.
C) Activating Pyruvate Stored In The Cytoplasm.
D) Breaking Down Glucose To Form Lactic Acid.
6 Exocytosis, The Reverse Of Endocytosis, Is Important In
Into The Extracellular Fluid.
A) Engulfing And Ingesting Fluid And Proteins
For
Transpo
rt
B) Killing, Degrading, And Dissolving
HarmfulMicroorganisms
C) Removing Cellular Debris And
Releasing
Synthesized
Substances
D) Destruction Of Particles By Lysosomal
EnzymesFor Secretion
7 The Process Responsible For Generating And
ConductingMembrane Potentials Is:
A) Diffusion Of Current-Carrying Ions.
B) Millivoltage Of Electrical Potential.
C) Polarization Of Charged Particles.
D) Ion Channel Neurotransmission.
8 Epithelial Tissues Are Classified According To The Shape
Of TheCells And The Number Of Layers. Which Of The
Following Is A Correctly Matched Description And Type
Of Epithelial Tissue?
Simple Epithelium: Cells In Contact With
, A) Intercellular Matrix; Some Do Not Extend
ToSurface