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BIO163 > Quiz 5 > Flashcards

Quiz 5 Flashcards

1
Q

True or False

Lysosomes degrade bacteria only

A

False

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2
Q

True or False

T-helper cells have CD8+ coreceptors

A

False

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3
Q

True or False

T-helper cells have CD8+ coreceptors

A

False

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4
Q

True or False

Cytotoxic T cells induce apoptosis

A

True

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5
Q

True or False

Immediate hypersensitivity involves T cells

A

False

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6
Q

True or False

Delayed hypersensitivity involved antibodies

A

False

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7
Q

True or False

A positive TB skin test is an example of immediate hypersensitivity

A

False

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8
Q

True or False

T-helper cells recognize antigens on MHC-II

A

True

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9
Q

True or False

Gamma interferon is produced by lymphocytes

A

True

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10
Q

True or False

IgA is also known as secretory antibody

A

True

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11
Q

True or False

Interferons can activate macrophages and NK cells

A

True

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12
Q

True or False

Histamine is a bronchoconstrictor

A

True

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13
Q

True or False

Adaptive immunity is systemic

A

True

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14
Q

True or False

An epitope is an antibody determinant

A

False

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15
Q

True or False

One antigen can have many epitopes

A

True

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16
Q

True or False

IgG accounts for about 10% of gamma globulins

A

False

17
Q

True or False

Anti-Rh antibody is an IgG- type antibody

A

True

18
Q

True or False

IgM is a pentameric molecule

A

True

19
Q

True or False

IgM can cross the placenta to cause erythroblastosis fetalis

A

False

20
Q

True or False

Contact dermatitis is an example of delayed hypersensitivity

A

True

BIO163 (18 decks)

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