Cell Biology

In performing research, you treat frog zygotes with antibodies that bind E-cadherin. As a result, yo

In performing research, you treat frog zygotes with antibodies that bind E-cadherin. As a result, yo

In performing research, you treat frog zygotes with antibodies that bind E-cadherin. As a result, you expect 
A) the cells to become exclusively muscle tissue. 
B) the cells to be loosely associated and abort development. 

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An elderly patient presents with blistering of the skin. You suspect an autoimmune disorder. If your

An elderly patient presents with blistering of the skin. You suspect an autoimmune disorder. If your

An elderly patient presents with blistering of the skin. You suspect an autoimmune disorder. If your suspicions are correct, the patient's serum should contain antibodies reactive to 
A) talin. 
B) vinculin. 
C)

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Which of the following is not associated with the basal lamina?

Which of the following is not associated with the basal lamina?

Which of the following is not associated with the basal lamina?
A) serves as a structural support 
B) allows for movement of some small molecules 
C) can influence cell migrations in certain areas of the body 
D

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Some observations have suggested to researchers that substances associated with the extracellular ma

Some observations have suggested to researchers that substances associated with the extracellular ma

Some observations have suggested to researchers that substances associated with the extracellular matrix may be involved in cell migration. This has been observed with the cell marker CD44 on the surface of cancer cells and their ability to be separa

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Which of the following is mismatched with regard to similar excellular structures in plant and anima

Which of the following is mismatched with regard to similar excellular structures in plant and anima

Which of the following is mismatched with regard to similar excellular structures in plant and animal cells? 
A) elastins-extensins 
B) extracellular matrix-cell wall 
C) collagens-cellulose 
D) proteoglyca

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You are investigating cell localization by targeting the carbohydrates associated with various cell

You are investigating cell localization by targeting the carbohydrates associated with various cell

You are investigating cell localization by targeting the carbohydrates associated with various cell types. Based on this molecule's ability to bind various carbohydrates, which of the following would help determine which carbohydrates are found

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The protein invasin is associated with

The protein invasin is associated with

The protein invasin is associated with
A) Yersinia psuedotuberculosis.
B) the construction of an integrin network in bacteria.
C) plasmodemata.
D) tight-junction ridge formation.
E) lubrication of joints.

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Paracellular transport is associated with which of the following?

Paracellular transport is associated with which of the following?

Paracellular transport is associated with which of the following?
A) adherens junctions
B) integrins
C) desmosomes
D) tight junctions
E) hemidesmosomes

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A person with neither anti-A nor anti-B antibodies in circulation has which of blood type?

A person with neither anti-A nor anti-B antibodies in circulation has which of blood type?

A person with neither anti-A nor anti-B antibodies in circulation has which of blood type?
A) A
B) B
C) AB
D) O

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A patient is rushed to the emergency room and immediately needs a blood transfusion. The patient is

A patient is rushed to the emergency room and immediately needs a blood transfusion. The patient is

A patient is rushed to the emergency room and immediately needs a blood transfusion. The patient is found to have only anti-A antibodies in circulation. The blood type of this individual must be 
A) A. 
B) B. 
C) AB.&

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The function of integrin-linked kinase during integrin-based signaling is

The function of integrin-linked kinase during integrin-based signaling is

The function of integrin-linked kinase during integrin-based signaling is
A) integrin activation.
B) anchorage-dependent growth.
C) scaffolding protein.
D) cell movement.
E) anchorage-independent growth.

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Which of the following is the correct order for the synthesis of the plant cell wall, from the outer

Which of the following is the correct order for the synthesis of the plant cell wall, from the outer

Which of the following is the correct order for the synthesis of the plant cell wall, from the outermost layer to the innermost layer?
A) middle lamella; primary cell wall; secondary cell wall; plasma membrane
B) primary cell wall; middle l

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Which of the following components is not associated with the primary cell wall?

Which of the following components is not associated with the primary cell wall?

Which of the following components is not associated with the primary cell wall? 
A) cellulose microfibrils 
B) hemicelluloses 
C) pectins 
D) glycoproteins 
E) lignins

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Which of the following activities is not associated with cadherins?

Which of the following activities is not associated with cadherins?

Which of the following activities is not associated with cadherins?
A) segregation of cells to specific tissues
B) paracellular transport
C) embryonic development
D) establishment of synaptic connections
E) loss of activity a

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Which of the following is mismatched?

Which of the following is mismatched?

Which of the following is mismatched?
A) IgSF[emdash]chondroitin
B) cadherinscalcium ions
C) selectinsleukocytes
D) cadherinsembryonic development
E) lectinscarbohydrates

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Which of the following statements is true regarding cell-cell adhesion?

Which of the following statements is true regarding cell-cell adhesion?

Which of the following statements is true regarding cell-cell adhesion?
A) Adhesion is coordinated with many cellular processes except cell survival.
B) Adhesion molecules include plakoglobulin, which cements two cells together.
C) Adh

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A newly defined autoimmune disorder has resulted in an immune response against Type V collagen fiber

A newly defined autoimmune disorder has resulted in an immune response against Type V collagen fiber

A newly defined autoimmune disorder has resulted in an immune response against Type V collagen fibers. As a result, the most likely organ to be targeted in this response would be the 
A) skin. 
B) heart. 
C) lungs.&nb

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In animal cells, the extracellular matrix plays important roles in all of the following processes ex

In animal cells, the extracellular matrix plays important roles in all of the following processes ex

In animal cells, the extracellular matrix plays important roles in all of the following processes except
A) cell division.
B) motility.
C) DNA replication.
D) differentiation.
E) adhesion.

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A calcium-binding protein that aids in the activation of many enzymes, including myosin light-chain

A calcium-binding protein that aids in the activation of many enzymes, including myosin light-chain

A calcium-binding protein that aids in the activation of many enzymes, including myosin light-chain kinase, is
A) calcium phosphorylase.
B) activase.
C) calmodulin.
D) myosin light-chain phosphatase.
E) junctional complex.

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Primary cilia have a ________ structure and are observed in ________ structures.

Primary cilia have a ________ structure and are observed in ________ structures.

Primary cilia have a ________ structure and are observed in ________ structures.
A) 9 + 2; neural
B) 9 + 0; neural
C) 9 + 2; sensory
D) 9 + 0; sensory
E) 9 + 4; developmental

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To carry out their function, kinesin family proteins must attach to their respective

To carry out their function, kinesin family proteins must attach to their respective

To carry out their function, kinesin family proteins must attach to their respective
A) dynein.
B) cargo.
C) adaptor proteins.
D) only choices B and C
E) choices A, B, and C

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In the axoneme, nexin (Multiple Choice)

In the axoneme, nexin (Multiple Choice)

In the axoneme, nexin   
A) is an incomplete microtubule. 
B) slides microtubules past one another. 
C) projects inward at each doublet. 
D) links adjacent doublets. 
E) is a complete microtubule.

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In the axoneme, sidearms (Multiple Choice)

In the axoneme, sidearms (Multiple Choice)

In the axoneme, sidearms   
A) are incomplete microtubules. 
B) slide microtubules past one another. 
C) project inward at each doublet. 
D) link adjacent doublets. 
E) are complete microtubules.

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Axonemal dynesin is characterized by

Axonemal dynesin is characterized by

Axonemal dynesin is characterized by
A) motion along actin filaments. 
B) sliding in flagellar microtubules. 
C) motion toward the "minus" end of the microtubule. 
D) activation of sliding along actin

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All of the following are examples of nonmuscle motility and contractility except

All of the following are examples of nonmuscle motility and contractility except

All of the following are examples of nonmuscle motility and contractility except
A) microsome formation. 
B) pseudopodia formation. 
C) cytoplasmic streaming. 
D) actin polymerization of Listeria. 
E)

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In the sliding filament model of muscle contraction, I bands contain

In the sliding filament model of muscle contraction, I bands contain

In the sliding filament model of muscle contraction, I bands contain
A) thick filaments.
B) thin filaments.
C) myosin.
D) sacrcomeres.
E) both thick and thin filaments.

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Dyneins are (Multiple Choice)

Dyneins are (Multiple Choice)

Dyneins are
A) associated with organelle movement. 
B) associated with cilia and flagella. 
C) monomeric myosin-like proteins. 
D) responsible for anterograde transport. 
E) all of the above

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Muscle contraction occurs in a cyclic process. Which of the following sequences is in the correct or

Muscle contraction occurs in a cyclic process. Which of the following sequences is in the correct or

Muscle contraction occurs in a cyclic process. Which of the following sequences is in the correct order? 
A) power stroke, cross bridge formation, cross bridge dissociation, cocking of myosin 
B) cross bridge formation, power st

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Cells that undergo amoeboid movement have an outer layer of thick, gelatinous cytoplasm called the _

Cells that undergo amoeboid movement have an outer layer of thick, gelatinous cytoplasm called the _

Cells that undergo amoeboid movement have an outer layer of thick, gelatinous cytoplasm called the ________ and an inner layer of more fluid cytoplasm called the ________. 
A) ectoplasm; endoplasm 
B) lamellipodium; pseudopodium

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Specialized hair cells that contain special actin-rich sensory structures called __________ are loca

Specialized hair cells that contain special actin-rich sensory structures called __________ are loca

Specialized hair cells that contain special actin-rich sensory structures called __________ are located within the organ of Corti in the cochlea of the ear.
A) connecting cilia
B) primary cilia
C) stereocilia
D) undulipodia
E

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Which of the following characteristics is not associated with cardiac muscle?

Which of the following characteristics is not associated with cardiac muscle?

Which of the following characteristics is not associated with cardiac muscle? 
A) intercalated discs 
B) contracts spontaneously 
C) involuntary 
D) pointed ends 
E) striations

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All of the following are actin-dependent nonmuscle motility except

All of the following are actin-dependent nonmuscle motility except

All of the following are actin-dependent nonmuscle motility except
A) translocation of multienzyme complexes.
B) pinching off of the cleavage furrow in cytokinesis.
C) chemotaxis.
D) cyclosis or cytoplasmic streaming.
E) amoe

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Which of the following sequences of skeletal muscle proteins is correctly listed from smallest to la

Which of the following sequences of skeletal muscle proteins is correctly listed from smallest to la

Which of the following sequences of skeletal muscle proteins is correctly listed from smallest to largest? 
A) actin, titin, nebulin, myosin 
B) actin, myosin, nebulin, titin 
C) titin, nebulin, actin, myosin 

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Which of the following terms is incorrectly matched with the word from which it was derived?

Which of the following terms is incorrectly matched with the word from which it was derived?

Which of the following terms is incorrectly matched with the word from which it was derived? 
A) Z line-zwischen 
B) M line-myomesin 
C) H zone-hell 
D) I band-irregular 
E) A band-anisotropic

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Cytological examination of resting and contracted muscle provides important support for our current

Cytological examination of resting and contracted muscle provides important support for our current

Cytological examination of resting and contracted muscle provides important support for our current model for how skeletal muscle contracts. This evidence includes the observation that during contraction the 
A) Z lines move farther apart.

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All of the following diseases are classified as ciliopathies except

All of the following diseases are classified as ciliopathies except

All of the following diseases are classified as ciliopathies except
A) Kartagener's triad.
B) BardetBieldl syndrome.
C) MeckelGruber syndrome.
D) Griscelli's disease.
E) polycystic kidney disease.

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Sidearms are attached to ________. (Multiple Choice)

Sidearms are attached to ________. (Multiple Choice)

Sidearms are attached to ________. 
A) B tubules 
B) A tubules 
C) central pairs 
D) radial spokes 
E) interdoublet nexin

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The "9 + 0" cilia arrangement is associated with

The "9 + 0" cilia arrangement is associated with

The "9 + 0" cilia arrangement is associated with
A) eubacteria.
B) cyanobacteria.
C) cilia lining the respiratory tract.
D) flagella on sperm cells.
E) animal embryonic development.

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Of the following microtubule-interacting proteins, which might you potentially investigate as a mech

Of the following microtubule-interacting proteins, which might you potentially investigate as a mech

Of the following microtubule-interacting proteins, which might you potentially investigate as a mechanism for disrupting cell division in actively replicating tumor cells?
A) Tau
B) +-TIP proteins
C) catastrophins
D) G-actin

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All of the following are components associated with the bacterial cytoskeleton except

All of the following are components associated with the bacterial cytoskeleton except

All of the following are components associated with the bacterial cytoskeleton except
A) FtsZ.
B) MreB.
C) plaktin.
D) crescentin.
E) both choices B and C

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