cell as an open system class 9 Biology in Urdu / in Hindi | Lec #18 | chp #4 | cells and tissues
cell as an open system
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cell as an open system class 9 biology
cell as an open system 9 class biology
biology
class 9 biology chapter 4 cell as an open system
class 9 biology
cell as an open system class 9
cell as open system
class
cell as an open system 9th class
class 9th biology
9th biology
conscience biology class 9
selina class 9 biology
biology class 9 selina
class 9 biology chapter 4
#academyofbiology78
#9thclassbiology
#eLearning pk,
#Pk stories,
#Learn with dyed atif,
#Sreducators,
#Sair medical learning,
#Nextgene developer,
#impulse wave,
#TWC academy,
#Study malaria,
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LearningTranscript
00:00Assalamualaikum, today our topic of discussion is cell as an open system.
00:08Why is the cell called an open system?
00:10Because the things that are needed inside the cell enter the cell from the outside.
00:19And the things that are extra or waste material are taken out of the cell.
00:25This is why it is called an open system.
00:35The membrane around the cell is called a plasma membrane.
00:40We had read about this in detail earlier.
00:44The plasma membrane is a semi-permeable membrane.
00:49The things that are extra or waste material are taken out of the cell.
01:09This is how different cells have different organelles.
01:13Each cell has a different function.
01:15Each nucleus has a different function.
01:17They store the genetic material.
01:19Rough endoplasmic reticulum produces protein.
01:23Sumut endoplasmic reticulum produces lipid.
01:25After the production of protein and lipid in the endoplasmic reticulum, it enters the Golgi apparatus.
01:31It is modified and packaged.
01:33This is how vacuoles store water and minerals.
01:39We had read about this in detail in previous lectures.
01:43Each cell has a different function.
01:49The mitochondria in the cell is called the powerhouse.
01:57They produce ATP.
01:59They produce energy.
02:01When they produce energy, they need glucose.
02:07They break down glucose and other organic matter to produce energy.
02:15During this time, they need organic matter and glucose.
02:21This is what they take from outside.
02:23During glycolysis, they need oxygen.
02:29They take oxygen from outside the cell.
02:33This is how they need enzymes.
02:35This is how they take it from outside.
02:37This is how they take it from outside.
02:39After this, the metabolism process takes place.
02:43After this, ATP is produced as a product.
02:47Along with this, two waste materials are produced.
02:51Water and CO2 are produced as a waste material.
02:55These two are waste materials.
02:57These two waste materials are taken from outside the cell.
03:03These two waste materials are not useful.
03:05These two waste materials are taken from outside the cell.
03:07Second is ATP.
03:09Cell uses ATP for different processes.
03:13Cell uses ATP for muscle contraction and relaxation.
03:17Cell uses ATP for protein synthesis.
03:21Cell uses ATP for other processes.
03:25Cell produces as much ATP as necessary.
03:29Cell stores it.
03:33Cell stores it.
03:37Cell stores glycogen in the form of fat.
03:41Cell stores glycogen in the form of fat.
03:45Cell stores glycogen in the form of fat.
03:51stored inside the cell.
03:53After that, if there is any extra
03:55ATP left,
03:57the cell, wherever
03:59outside the cell,
04:01if there is any other cell that needs
04:03ATP, they sell it there.
04:05Through what?
04:07Through blood.
04:09As you know, blood is circulating
04:11throughout our body.
04:13So, this
04:15ATP,
04:17these cells sell ATP in blood
04:19where
04:21ATP is needed.
04:23In which cell?
04:25They deliver it there.
04:27In this way, substances are
04:29entering inside the cell and
04:31coming out.
04:33That is why it is called
04:35an open system.
04:41So,
04:43what does the cell do?
04:45It performs metabolic activities.
04:47It needs different substances
04:49from outside.
04:51After that,
04:53the ATP is used
04:55or stored
04:57or transported
04:59wherever it is needed.