NAHP NRCMA Exam - Topic 6 Question 4 Discussion

Actual exam question for NAHP's NRCMA exam

Question #: 4
Topic #: 6

[All NRCMA Questions]

The primary function of red blood cells is to:

AFight infection

BCarry oxygen

CProduce hormones

DStore fat

Show Suggested Answer

Suggested Answer: B

Red blood cells (RBCs), also known as erythrocytes, are specialized cells in the blood responsible for carrying oxygen from the lungs to the body's tissues and returning carbon dioxide from the tissues to the lungs. RBCs contain hemoglobin, a protein that binds to oxygen molecules. Hemoglobin is composed of four subunits, each containing an iron ion that can bind one molecule of oxygen. This binding and release of oxygen are critical for cellular respiration, which provides energy for the body's metabolic processes. The unique biconcave shape of RBCs increases their surface area for efficient gas exchange and allows them to navigate through the narrow capillaries.

by Erasmo at Aug 03, 2024, 08:44 PM

Limited Time Offer

25%

Off

Get Premium NRCMA Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Omega

3 months ago

Hormones? Really? That's a new one for me!

upvoted 0 times

...

Sharen

3 months ago

B is correct, but they also help remove CO2.

upvoted 0 times

...

Gregoria

3 months ago

Wait, I thought they did more than just carry oxygen?

upvoted 0 times

...

Lashanda

4 months ago

Definitely B! They don't fight infections.

upvoted 0 times

...

Melvin

4 months ago

Red blood cells carry oxygen, that's their main job!

upvoted 0 times

...

Stefany

4 months ago

I’m pretty sure the main role is to carry oxygen, but I guess I should double-check that against my notes.

upvoted 0 times

...

Doretha

4 months ago

I’m a bit confused; I thought red blood cells might also help fight infections somehow?

upvoted 0 times

...

Sylvie

4 months ago

I remember a practice question about blood functions, and I think it was definitely about oxygen transport.

upvoted 0 times

...

Walker

5 months ago

I think red blood cells are mainly about carrying oxygen, but I’m not 100% sure.

upvoted 0 times

...

Ricki

5 months ago

Easy peasy! The primary function of red blood cells is to carry oxygen, no doubt about it. Option B is the clear answer here.

upvoted 0 times

...

Nana

5 months ago

Okay, let me think this through step-by-step. Red blood cells don't produce hormones, and they definitely don't store fat, so I can rule out C and D. That leaves A and B. I'm leaning towards B, but I want to double-check my notes to be sure.

upvoted 0 times

...

Stefany

5 months ago

Hmm, I'm a little unsure about this one. I know red blood cells have something to do with fighting infection, but I can't remember if that's their primary function. I'll have to think this through carefully.

upvoted 0 times

...

Arlene

5 months ago

I'm pretty sure the primary function of red blood cells is to carry oxygen, so I'll go with option B.

upvoted 0 times

...

Noel

5 months ago

Okay, I'm pretty confident that the correct answer is D. Spoke devices can only send traffic to networks behind the hub in a spoke-to-hub-only topology.

upvoted 0 times

...

Delisa

5 months ago

Wait, I'm a little confused. Doesn't a schedule performance index of 0.94 mean the project is actually performing well, since it's close to 1.0? I'm not sure A is the right answer here.

upvoted 0 times

...