Perfection Ace
Badges: 18
Rep:
?
#1
Report Thread starter 5 years ago
#1
If they don't have any nuclei, what controls the cells functions? I thought that's what the nucleus does?
0
reply
Ranadosa
Badges: 2
Rep:
?
#2
Report 5 years ago
#2
They dont have a nucleus so that they can have a larger volume for haemoglobin and therefore carry more oxygen. They are made in the bone marrow they dont divide by mitosis
1
reply
Namita Gurung
Badges: 16
Rep:
?
#3
Report 5 years ago
#3
There's nothing they need to 'know' to do. We know that RBC don't have a nucleus to have more haemoglobin to carry as much oxygen as possible and also so that RBCs have a bi-concave structure. Haemoglobin have a high affinity for Oxygen in the lungs so oxygen moves in by diffusion into the blood to bind with the haemoglobin. They then have low oxygen affinity in the respiring cells so oxygen moves out by diffusion from the RBCs.

Red blood cells are not like other cells, they don't need to do things like respiration so a nucleus is not really necessary to them. Everything happens by diffusion which is a passive process.

As the person above said, RBCs don't undergo mitosis to form adult RBCs, which is why they are created in the red bone marrow of bones and are initially stem cells.
1
reply
Perfection Ace
Badges: 18
Rep:
?
#4
Report Thread starter 5 years ago
#4
(Original post by Namita Gurung)
There's nothing they need to 'know' to do. We know that RBC don't have a nucleus to have more haemoglobin to carry as much oxygen as possible and also so that RBCs have a bi-concave structure. Haemoglobin have a high affinity for Oxygen in the lungs so oxygen moves in by diffusion into the blood to bind with the haemoglobin. They then have low oxygen affinity in the respiring cells so oxygen moves out by diffusion from the RBCs.

Red blood cells are not like other cells, they don't need to do things like respiration so a nucleus is not really necessary to them. Everything happens by diffusion which is a passive process.

As the person above said, RBCs don't undergo mitosis to form adult RBCs, which is why they are created in the red bone marrow of bones and are initially stem cells.
Ahhh, okay! Thank you!
0
reply
Namita Gurung
Badges: 16
Rep:
?
#5
Report 5 years ago
#5
(Original post by Perfection Ace)
Ahhh, okay! Thank you!
np
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

Who is winning Euro 2020

France (84)
26.25%
England (108)
33.75%
Belgium (27)
8.44%
Germany (38)
11.88%
Spain (6)
1.88%
Italy (29)
9.06%
Netherlands (10)
3.13%
Other (Tell us who) (18)
5.63%

Watched Threads

View All