Discuss FSMTB MBLEx Exam Topic 7 Question 35

Which of the following best describes antigens?

AA substance that stimulates an immune response

BA substance that suppresses an immune response

CA substance that assists digestion

DA substance that causes muscle to fire

Suggested Answer: A

An antigen is a substance either foreign or internal that triggers an immune response. This response is triggered by a histocompatibility molecule within each cell that can trigger an immune response.

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32 comments · newest first

Macy 10 months ago

I thought antigens were just for digestion? This is new info for me!

Lourdes 11 months ago

A is correct! Antigens trigger the immune system.

Mollie 11 months ago

Wait, are we sure about that? I thought they could suppress responses too.

Stephane 11 months ago

Totally agree, A is the right answer!

Carma 11 months ago

Antigens are definitely substances that stimulate an immune response.

Reena 12 months ago

I’m a bit confused because I thought antigens could also suppress responses, but that might be a different concept. I’ll stick with A for now.

Phillip 12 months ago

I feel like I’ve seen a question like this before, and I think it was about how antigens stimulate the immune response. So, A seems right to me.

Judy 12 months ago

I remember something about antigens triggering responses, but I’m not completely sure if it’s just A or if there’s more to it.

Daryl 1 year ago

I think antigens are related to the immune system, so I’m leaning towards option A.

Denise 1 year ago

Wait, I thought antigens were something that suppressed the immune system. Maybe I'm getting that mixed up with something else. I better double-check my notes before answering this.

Paz 1 year ago

Okay, I've got this. Antigens are the foreign substances that our immune system recognizes and responds to. So option A, "a substance that stimulates an immune response," is the correct answer.

Alease 1 year ago

This one seems pretty straightforward. Antigen is a substance that triggers an immune response, so I'm going with option A.

Isaac 1 year ago

Hmm, I'm a little unsure about this one. I know antigens have something to do with the immune system, but I can't quite remember the exact definition. I'll have to think this through carefully.

Isabelle 1 year ago

The wording on some of these options is tricky. I'll need to analyze each one closely to determine which ones are actually true.

Desiree 2 years ago

C'mon, it's obviously A. Antigens are like the supervillains of the body - they're here to cause trouble, not help with digestion or muscle movement. I bet the person who wrote this question was feeling a little 'antsy' that day.

Lynelle 2 years ago

I'm torn between A and B, but I think A is the correct answer. Antigens are the troublemakers, not the peacemakers, right?

Devora 2 years ago

↳ replying to Lynelle

User 3: Yeah, A is the right choice. Antigens are not the peacemakers.

Casie 2 years ago

↳ replying to Lynelle

User 2: I agree, antigens are definitely troublemakers.

Aileen 2 years ago

↳ replying to Lynelle

User 1: I think A is the correct answer. Antigens stimulate an immune response.

Glory 2 years ago

I think it's A too, antigens trigger the body to produce antibodies.

Alpha 2 years ago

I agree with Sueann, antigens stimulate the immune response.

Walker 2 years ago

I'm going with A as well. Antigens are like the wanted posters in the immune system's post office. They're the ones we need to look out for.

Altha 2 years ago

↳ replying to Walker