Questions pertaining to red blood cells, or erythrocytes, the most common type of blood cell that is responsible for delivering oxygen throughout the body.
Questions tagged [red-blood-cell]
107 questions
4
votes
1 answer
How does hemoglobin-free blood transport oxygen?
Snails... We have some kind of huge garden snails appearing lately (read since the last 10 years or so). Try as one might, it's impossible to avoid them when driving. These snails do not appear to have red blood - I doubt they have blood at all.…
Everyone
- 3,863
- 1
- 26
- 42
4
votes
1 answer
How can mammalian red blood cells live without a nucleus?
Even though they have a shorter lifespan than other varieties of cells, I would think that 120 days without a nucleus is still quite a long time.
the real deal
- 219
- 1
- 5
- 8
3
votes
2 answers
Why does the body not recycle red blood cells?
This question is out of curiosity.
The life expectancy of a red blood cell (RBC) is approximately 3 months, and then RBCs are disposed of. Why does the body opt to build new red blood cells rather than using the existing ones? Do RBCs lose…
harpalss
- 2,573
- 3
- 20
- 37
2
votes
1 answer
Blood transfusion
Can we exchange the antigen present on membrane of RBC's so that it can be transfused from one person to other ?
As we face problem to find required bloodgroup at the time of emergency especially O negative. So can we have some other technique to…
Ishita Gupta
- 21
- 2
2
votes
3 answers
What is the surface area to volume (SA:V) ratio of a red blood cell?
According to this author, red blood cells (RBCs) are biconcave to allow easier bending. The standard explanation in biology for higher surface area to volume ratios is that it improves reaction rates. When a RBC squeezes through narrow veins I…
SANBI samples
- 519
- 4
- 21
2
votes
1 answer
Do Red blood cells(mammals) really have no organelles?
I have read that mammal mature Red blood cells lack most organelles, including mitochondria, golgi apparatus and an ER. ( https://en.wikipedia.org/wiki/Red_blood_cell#Mammalian_erythrocytes ) This makes sense since there purpose is to transport…
Ro Siv
- 1,289
- 2
- 16
- 35
1
vote
2 answers
Do blood cells immediately die after leaving the body?
I am wondering, do blood cells die right after they leave the body?
C. Jordan
- 121
- 3
0
votes
1 answer
Does there exist a reagent that can only be precipitated by Haemoglobin and nothing else?
I recently read Sherlock Holmes and in the book A Study In Scarlet, Holmes says to Watson that he has discovered a reagent that can only be precipitated by Haemoglobin and nothing else. I know about the Guiacum test but is there any other test like…
Aryan
- 11
- 1
0
votes
1 answer
Is erythropoietin released when breaking down RBCs
I came across the MCQ in my physiology book, it says:
Erythropoietin.....
i) may decrease the life span of RBCs.
ii) is not released on breakdown of RBCs.
iii) may stimulate the stem cells.
iv) is formed mainly in liver.
v) is lipid in nature
I…
Asmaa
- 147
- 7