username3460126
Badges: 16
Rep:
?
#1
Report Thread starter 1 year ago
#1
How is the liver an organ of respiration?
0
reply
PrazzPrazz
Badges: 19
Rep:
?
#2
Report 1 year ago
#2
Technically, ever cell respires due to an active cellular site known as mitochondria. Mitochondria are organelles found in the cells of every complex organism. They produce about 90% of the chemical energy that cells need to survive via respiration. Mitochondria also have a special role in making cells die (apoptosis). This may sound strange, but it is vital for the processes of growth and development.
0
reply
username3460126
Badges: 16
Rep:
?
#3
Report Thread starter 1 year ago
#3
(Original post by PrazzPrazz)
Technically, ever cell respires due to an active cellular site known as mitochondria. Mitochondria are organelles found in the cells of every complex organism. They produce about 90% of the chemical energy that cells need to survive via respiration. Mitochondria also have a special role in making cells die (apoptosis). This may sound strange, but it is vital for the processes of growth and development.
Thank You! Just a quick question.When the oxygen debt is repaid once the lactic acid has been converted back to glucose and then breaks down in aerobic respiration to form co2 and water where does that oxygen come from when it says 'the oxygen debt is repaid'
Sorry again!
0
reply
euphrosynay
Badges: 15
Rep:
?
#4
Report 1 year ago
#4
as well as the above:

blood flowing through the muscles transports lactic acid to the liver, where lactic acid is converted back into glucose
the glucose produced is supplied to the muscles in the bloodstream; muscles can use oxygen in the blood and glucose from the liver for respiration.
then, when the oxygen and glucose have been completely converted to carbon dioxide and water, the oxygen debt will be repaid since there is no lactic acid left, and the muscles can respire aerobically, releasing more energy.
hence, the liver helps to restore aerobic respiration in the muscles, which may be why it can be counted as an organ of respiration.

hope this helped!
0
reply
PrazzPrazz
Badges: 19
Rep:
?
#5
Report 1 year ago
#5
(Original post by FloralPrints)
Thank You! Just a quick question.When the oxygen debt is repaid once the lactic acid has been converted back to glucose and then breaks down in aerobic respiration to form co2 and water where does that oxygen come from when it says 'the oxygen debt is repaid'
Sorry again!
That oxygen is released via the breakdown of glucose (anaerobic respiration) it releases less energy than aerobic. Usually in aerobic respiration we get O2 via inhalation and exhalation (ventilation process). But in anaerobic respiration - glucose is broken down, hence why when we exercise and run out of breath "people say we burn fat" because glucose is broken down to release o2 since cells need a constant supply. Hope this helped and no worries!
0
reply
username3460126
Badges: 16
Rep:
?
#6
Report Thread starter 1 year ago
#6
(Original post by PrazzPrazz)
That oxygen is released via the breakdown of glucose (anaerobic respiration) it releases less energy than aerobic. Usually in aerobic respiration we get O2 via inhalation and exhalation (ventilation process). But in anaerobic respiration - glucose is broken down, hence why when we exercise and run out of breath "people say we burn fat" because glucose is broken down to release o2 since cells need a constant supply. Hope this helped and no worries!
Thank You! So in anaerobic respiration glucose breaks down to produce lactic acid and oxygen then the whole cycle starts again?
0
reply
username3460126
Badges: 16
Rep:
?
#7
Report Thread starter 1 year ago
#7
(Original post by euphrosynay)
as well as the above:

blood flowing through the muscles transports lactic acid to the liver, where lactic acid is converted back into glucose
the glucose produced is supplied to the muscles in the bloodstream; muscles can use oxygen in the blood and glucose from the liver for respiration.
then, when the oxygen and glucose have been completely converted to carbon dioxide and water, the oxygen debt will be repaid since there is no lactic acid left, and the muscles can respire aerobically, releasing more energy.
hence, the liver helps to restore aerobic respiration in the muscles, which may be why it can be counted as an organ of respiration.

hope this helped!
Thank You!
0
reply
PrazzPrazz
Badges: 19
Rep:
?
#8
Report 1 year ago
#8
(Original post by FloralPrints)
Thank You! So in anaerobic respiration glucose breaks down to produce lactic acid and oxygen then the whole cycle starts again?
lactic acid and energy via oxygen yes, this is paid back later like you said via releasing it as Co2 and water and yes the cycle starts, anaerobic only occurs in heavy movement.
0
reply
username3460126
Badges: 16
Rep:
?
#9
Report Thread starter 1 year ago
#9
(Original post by PrazzPrazz)
lactic acid and energy via oxygen yes, this is paid back later like you said via releasing it as Co2 and water and yes the cycle starts, anaerobic only occurs in heavy movement.
Thank you so much! I understand it now
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

University open days

  • Bournemouth University
    Undergraduate Open Day Undergraduate
    Wed, 19 Feb '20
  • Buckinghamshire New University
    Postgraduate and professional courses Postgraduate
    Wed, 19 Feb '20
  • University of Warwick
    Warwick Business School Postgraduate
    Thu, 20 Feb '20

People at uni: do initiations (like heavy drinking) put you off joining sports societies?

Yes (177)
67.3%
No (86)
32.7%

Watched Threads

View All