Sri K

verified

This problem has been solved

by verified expert Sri K

100% free to try

Question

4) Which statement is true? a) In cell-mediated immunity, T cells defend the body against intracellular pathogens b) Cell-mediated immunity deals with pathogens that have invaded the body cells c) Specific antibodies are produced by B cells which help define the humoral response d) The skin is one of the body's first line of defense; phagocytic white blood cells the second line, and antibodies the third line of defense e) All are correct 5) Which is incorrectly matched? a) IgG: most abundant circulating antibody b) IgM: first antibody to appear in response to an antigen c) IgA: found in saliva, sweat and tears and prevents viral and bacterial attachment to epithelial surfaces d) IgE: involved in allergic reactions e) IgD: Crosses the placenta and activates T cells

          4) Which statement is true?
a) In cell-mediated immunity, T cells defend the body against intracellular pathogens
b) Cell-mediated immunity deals with pathogens that have invaded the body cells
c) Specific antibodies are produced by B cells which help define the humoral
response
d) The skin is one of the body's first line of defense; phagocytic white blood cells the
second line, and antibodies the third line of defense
e) All are correct
5) Which is incorrectly matched?
a) IgG: most abundant circulating antibody
b) IgM: first antibody to appear in response to an antigen
c) IgA: found in saliva, sweat and tears and prevents viral and bacterial attachment
to epithelial surfaces
d) IgE: involved in allergic reactions
e) IgD: Crosses the placenta and activates T cells

Show more…

4) Which statement is true?
a) In cell-mediated immunity, T cells defend the body against intracellular pathogens
b) Cell-mediated immunity deals with pathogens that have invaded the body cells
c) Specific antibodies are produced by B cells which help define the humoral
response
d) The skin is one of the body's first line of defense; phagocytic white blood cells the
second line, and antibodies the third line of defense
e) All are correct
5) Which is incorrectly matched?
a) IgG: most abundant circulating antibody
b) IgM: first antibody to appear in response to an antigen
c) IgA: found in saliva, sweat and tears and prevents viral and bacterial attachment
to epithelial surfaces
d) IgE: involved in allergic reactions
e) IgD: Crosses the placenta and activates T cells

Added by Michelle W.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Sri K

10/07/2023

Step 1

In cell-mediated immunity, cells defend the body against intracellular pathogens. This statement is true. Show more…

Show all steps

lock

Thanks for your feedback!

Which statement is true? In cell-mediated immunity, T cells defend the body against intracellular pathogens. Cell-mediated immunity deals with pathogens that have invaded the body cells. Specific antibodies are produced by B cells, which help define the humoral response. The skin is one of the body's first line of defense; phagocytic white blood cells the second line, and antibodies the third line of defense. All are correct. Which is incorrectly matched? IgG: most abundant circulating antibody IgM: first antibody to appear in response to an antigen IgA: found in saliva, sweat and tears and prevents viral and bacterial attachment to epithelial surfaces IgE: involved in allergic reactions IgD: Crosses the placenta and activates T cells.

Play audio

Feedback

Powered by NumerAI

Sri K and 100 other subject Biology educators are ready to help you.

Ask a new question

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Recommended Videos

Recommended Textbooks

Transcript

00:01 Hello everyone, let's discuss this question, which statement is true? so the first option is, in cell -mediated immunity, t cells defend the body against intracellular pathogens.

00:12 So when we talk about cell -mediated immunity, here t cells, they are active and they defend the body against pathogens.

00:34 So this statement is true.

00:37 Now the second statement is, cell -mediated immunity deals with pathogens that have invaded the body cells.

00:44 So this statement is again true because cell -mediated immunity, it deals with pathogens which invade our cells.

01:06 So this statement is again true.

01:09 Now the third statement is, specific antibodies are produced by b cells which help define the humoral response.

01:17 This statement is also true as when we talk about specific antibodies, they are produced by b cells and they help in defining the humoral response of our body.

01:43 Fourth statement is, the skin is one of the body's first line of defense, phagocytic white blood cells the second line and antibodies the third line of defense.

01:53 This statement is again true as when a pathogen invades or tries to invade the body, then skin is the first line of defense means the pathogen will have to invade the skin first, then white blood cells and later on antibodies inside our body.

02:14 As we can see that all the four statements in the question are true, so here the final answer will be e, all are correct.

02:22 Next question is, which is incorrectly matched? first option is igg, it is the most abundant circulating antibody...

Ace is your personal tutor. It breaks down any question with clear steps so you can learn.

Start Using Ace