Exam (elaborations)
BIOS 255 Final Exam – Questions & Accurate Answers
- Course
- Institution
BIOS 255 Final Exam – Questions & Accurate Answers
[Show more]
Seller
Follow
Studyhall
Reviews received
Content preview
BIOS 255 Final Exam – Questions & AccurateAnswers
What are the 2 type of immune response? ✔️Ans - Innate Immunity and
Adaptive Immunity
Which lines of defense make up innate immunity? ✔️Ans - 1st and 2nd line
of defense
Innate Immunity characteristics ✔️Ans - Non-specific resistance
Present at birth
1st & 2nd line of defense
What is the 1st line of defense? ✔️Ans - Skin & Mucous Membranes
What is the 2nd line of defense? ✔️Ans - Internal Defenses
The 1st line of defense is made up of what 2 types? ✔️Ans - Mechanical
Defense & Chemical Defense
What are the mechanical defenses in innate immunity ✔️Ans - skin
mucous membranes
tears
saliva
mucus
cillia
epiglottis
urine
defecating
vomiting
What are the chemical defenses in innate immunity ✔️Ans - sebum
lysozyme
gastric juices
What makes up the internal defenses of innate immunity ✔️Ans -
antimicrobial proteins
natural killer cells
,Fever
Phagocytes
Inflammation
Complement system
Interferons (IFN)
steps of phagocytosis ✔️Ans - chemotaxis
Adherence
Ingestion
Digestion
killing
What happens in inflammation? ✔️Ans - redness/pain/heat/swelling
Vasodilation & increase permeability of blood vessels
phagocytes migrate from blood to injury
PRISH
What do interferons do? ✔️Ans - protect the uninfected host cell from viral
infection
adaptive immunity definition ✔️Ans - ability of body to defend itself
against specific invading agents
adaptive immunity characteristics ✔️Ans - Specific immunity
has both specificity and memory
2 types
what are the 2 types of adaptive immunity ✔️Ans - cell mediated and
antibody mediated
What is Cell Mediated Immunity ✔️Ans - Specific immunity that only uses
T cells
antibody-mediated immunity ✔️Ans - produces antibody B cells in
response to antigen. Either works alone or with Helper T cells (humoral)
Immunogenicity ✔️Ans - ability to provoke immune response
, Reactivity ✔️Ans - ability of antigen to react specifically to antibody it
provokes
What are epitopes? ✔️Ans - receptors on B & T cells
Binding site
B Cells in antigen processing ✔️Ans - Recognize and bind to antigens in
lymph, interstitial fluid and blood
T Cells in antigen processing ✔️Ans - only recognize fragments of antigenic
proteins (MHC)
What is antigen presentation? ✔️Ans - the antigen-MHC complex is
inserted into plasma membrane of body cell
Exogenous Antigen processing ✔️Ans - Organism begins OUTSIDE the cell
MHC II
Endogenous Antigen Processing ✔️Ans - Organism begins INSIDE the cell
MHC I
Cytokines ✔️Ans - small protein hormones (paracrine secretions) that
stimulate or inhibit many normal cell functions
Interleukin 2 (IL -2) ✔️Ans - Secreted by Helper T Cells
costimulate proliferation of helper T cells, cytotoxic T cells and B cells
activate NK cells
Interleukin 1 (IL-1) ✔️Ans - produce macrophages
promotes proliferation of helper T cells
acts on hypothalamus to cause fever
Where are MHC I found? ✔️Ans - present in all cells
Where are MHC II found? ✔️Ans - only on antigen presenting cells
what are the 2 types of T cells? ✔️Ans - Helper CD4 T Cells and Cytotoxic
CD8 T cells
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Studyhall. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
72042 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now
Recently viewed by you
Exam (elaborations) ·
NSG 3370 Exam 4 Final Actual Exam 2024 Q & A (Graded A+ )
