Acquired Immunity Pt.2 Flashcards

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1
Q

What happens when an macrophage is done eating?

A

They go through a different route, the lymphatic system & look for lymphocytes. (T cells & Bcells)

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2
Q

All nucleated cells have..?

A

MHC I

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3
Q

The antibodies produced by B cells will be bind to..?

A

Free antigens only

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4
Q

What lymphocyte carries receptors to bind to antigens presented in MHC?

A

T cells

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5
Q

Different types of B cells are called..?

A

B cell clones

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6
Q

Once you find the correct B cell with the right anti-body…

A

It goes through cellular division

  • it makes an army of identical clones/copies from that same antibody -“
  • from that they make daughter cells called plasma cells and make memory cells apart
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7
Q

Clonal selection

A

Selecting a B cell clone that makes a complementary anti-body for an antigen to become active.

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8
Q

Plasma cells

A

Short-lived antibody secreting factories (daughter cells) that get dumped into the bloodstream

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9
Q

Any cell that can capture antigens and display them in MHC II is termed as…?

A

Antigen presenting cell

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10
Q

Memory cells

A

Some daughter cells revert/return to the original “advertising “ form

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11
Q

True or False; memory cells make antibodies

A

False

They are cells in a naive state

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12
Q

Why are antibodies so useful by coating infectious bacteria that can help decrease infectious agents?

A
  1. ) enhances phagocytosis by being able to grab onto bacteria covered with antibodies
  2. ) prevents attachment from
  3. ) by gathering pathogens and their antigens together into a clump so phagocytes can consume all in one bite
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13
Q

What’s the purpose of memory cells?

A

Is to prevent disease/infection much faster than the first time it encountered it.

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14
Q

Free antigen

A

Not displayed in a MHC case.

Maybe floating around or still attached to its pathogen

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15
Q

Antibodies can only bind to ..?

A

Free antigens

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16
Q

T cells have..?

A

Receptors for an antigen

They don’t have antibodies

17
Q

Antibodies CANNOT bind to ..?

A

MHC I OR MHC II directly.

They need T cells for that