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NAHP NRCMA Exam - Topic 6 Question 4 Discussion

The primary function of red blood cells is to:
B) Carry oxygen
A) Fight infection
C) Produce hormones
D) Store fat

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:

Show Suggested Answer Hide 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

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Omega
9 months ago
Hormones? Really? That's a new one for me!
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Sharen
9 months ago
B is correct, but they also help remove CO2.
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Gregoria
9 months ago
Wait, I thought they did more than just carry oxygen?
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Lashanda
10 months ago
Definitely B! They don't fight infections.
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Melvin
10 months ago
Red blood cells carry oxygen, that's their main job!
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Stefany
10 months ago
I’m pretty sure the main role is to carry oxygen, but I guess I should double-check that against my notes.
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Doretha
10 months ago
I’m a bit confused; I thought red blood cells might also help fight infections somehow?
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Sylvie
10 months ago
I remember a practice question about blood functions, and I think it was definitely about oxygen transport.
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Walker
11 months ago
I think red blood cells are mainly about carrying oxygen, but I’m not 100% sure.
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Ricki
11 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.
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Nana
11 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.
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Stefany
11 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.
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Arlene
11 months ago
I'm pretty sure the primary function of red blood cells is to carry oxygen, so I'll go with option B.
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Noel
11 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.
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Delisa
11 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.
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Clay
2 years ago
I agree with Shenika. Red blood cells transport oxygen to all parts of the body.
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Shenika
2 years ago
I think it's B too. Red blood cells have hemoglobin which carries oxygen.
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Ben
2 years ago
B) Carry oxygen
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Thaddeus
2 years ago
I agree with B, red blood cells transport oxygen from the lungs to the rest of the body.
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Micaela
2 years ago
I think it's B too, because red blood cells contain hemoglobin which binds to oxygen.
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Tracey
2 years ago
Hold up, what if they're supposed to store fat? That would be pretty wild. Although, I guess that's not their 'primary' function. Hmm, tough call.
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Jess
2 years ago
B) Carry oxygen
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Marjory
2 years ago
I'm going with B. Carrying oxygen just seems like the most important job for those little red blood cells, you know?
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Lezlie
2 years ago
Definitely B. It's crucial for our body to function properly.
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Idella
2 years ago
I think it's B too. Oxygen is essential for our survival.
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Veronika
2 years ago
Yeah, without oxygen, our cells wouldn't be able to function properly.
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Carlene
2 years ago
I agree, carrying oxygen is definitely the main job of red blood cells.
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Lisha
2 years ago
Duh, it's obviously to carry oxygen. That's like the first thing they teach you in biology class!
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Viola
2 years ago
That's right, they're like little oxygen delivery trucks.
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Aleta
2 years ago
Yeah, red blood cells carry oxygen.
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