Log in
Biology
4
answers
0
watching
333
views

Perforins and granzymes:

produce fever, which kills pathogens.
combine together to form antibodies against a pathogen.
are released from cytotoxic T cells and work to kill pathogens.
aid in antigen presentation.
None of the above

______________________________

Becca has the flu. What type of immunity is being produced by her body?
Naturally-acquired passive immunity
Artificially-acquired active immunity
Artificially-acquired passive immunity
Naturally-acquired active immunity
All of the above

______________

The complement system is:
made up of proteins.
made up of carbohydrates.
made up of lipids.
A and B
B and C

Watch
4
answers
0
watching
333
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share
Already have an account? Log in
Share
Already have an account? Log in
Share
Irving Heathcote
Irving HeathcoteLv2
28 Sep 2019
Already have an account? Log in
Share

Related textbook solutions

Molecular Cell Biology
8 Edition,
Lodish
ISBN: 9781464183393
Biology: Science for Life with Physiology
6 Edition,
Belk
ISBN: 9780134555430
Concepts of Biology
OER Edition,
Openstax
ISBN: 9781938168116
Biology
2nd Edition, 2013
Openstax
ISBN: 9781947172517
Essentials of Biology
5 Edition,
Mader
ISBN: 9781259660269

Related questions

Functional Magnetic Resonance Imaging is a tool that has been very useful in identifying what parts of the brain do what. Scientists can have a person perform some particular activity and then look for active areas in the brain. How does fMRI work?

A.

It takes a picture of the inside of the brain according to electricity levels. The more electrical current in the area, the more active it is.
B.

It takes a picture of the inside of the brain according to blood flow. More blood flow indicates more activity in that area.
C.

It takes images of thin layers of the brain and the more electrical activity in a layer, the more magnetic it is and this shows up in fMRI.
D.

Electrodes attached to the skull can trigger activity in particular brain areas which then trigger a person to perform certain behaviors.
E.

It takes a picture of the brain according to oxygen levels. More oxygen in an area indicates more activity in that area.

The strategy of vaccination to fight diseases uses what type of immunity?

A.

Non-specific immunity
B.

Cell-mediated immunity
C.

Natural immunity
D.

Specific immunity
E.

Passive immunity

If you came into contact with Vibrio, what defense do you have to keep it from even getting to your intestines?

A.

Your skin is an effective barrier against bacteria you come in contact with.
B.

Antimicrobial enzymes in saliva
C.

Acid in the stomach
D.

Mucous membranes in the digestive and respiratory tract
E.

All of the above

What do B cells do when they identify a pathogen?

A.

Engulf and eat it
B.

Kill it
C.

Produce antigens to bind to the pathogen and memory cells to guard against future infection.
D.

Produce antibodies to bind to the pathogen and memory cells to guard against future infection.
E.

Engage helper T cells to fight the infection

There are chemical signals that call on non-infected cells to help fight a virus. Which are they?

A.

Complement proteins
B.

Macrophages
C.

B cells
D.

Interferons
E.

Natural killer cells

When someone gets a bone marrow transplant, they have to be quarantined and carefully protected from pathogens for a period of time afterward. Why?

A.

Bone marrow produces the main cells involved in the specific immune response, so these patients are at special risk of infection until they build up enough marrow to produce sufficient cells.
B.

Bone marrow produces blood cells, so they have insufficient circulation for a period of time so their immune system lacks the energy to fight off any infection.
C.

Anytime a foreign substance, even someone else's bone marrow, is introduced to a body, there is an extra risk of infection.
D.

A common complication of bone marrow transplants is infection, and doctor's don't want the infection to spread to others.
E.

It's a traumatic procedure, and any extra stress on their body could kill them.

Weekly leaderboard

Home
Homework Help 3,900,000
Biology 460,000
Start filling in the gaps now
Log in