The Cell Cycle
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SCIENCE ANIMATION TRANSCRIPT: In this lesson, we'll be looking at the cell cycle. This is the lifespan of a eukaryotic somatic cell. A somatic cell is any cell in the body of an organism, except for sex cells such as sperm and egg cells. The cell cycle describes the sequence of cell growth and division. A cell spends most of its life a state called interphase. Interphase has three phases, the G1, S, and G2 phases. Interphase is followed by cell division, which has one phase, the M phase. Together these four phases make up the entire cell cycle. G1 of interphase is sometimes called growth 1 or gap phase 1. In G1, a cell is busy growing and carrying out whatever function it's supposed to do. Note that some cells, such as muscle and nerve cells, exit the cell cycle after G1 because they do not divide again. A cell enters the S phase after it grows to the point where it's no longer able to function well and needs to divide. The S stands for synthesis, which means to make, because a copy of DNA is being made during this phase. Once DNA replication is complete, the cell enters the shortest and the last part of interphase called G2, also known as growth 2 or gap phase 2. Right now, it's enough to know that further preparations for cell division take place in the G2 phase. Now that interphase is over, the cell is ready for cell division, which happens in the M phase. The M phase has two events. The main one is mitosis, which is division of the cell's nucleus, followed by cytokinesis, a division of the cytoplasm. So, at the end of M phase, you have two daughter cells identical to each other and identical to the original cell. Let's review. The cell cycle describes the life cycle of an individual cell. It has four phases, three in interphase and one for cell division. Most cell growth and function happen during G1. The cell enters the S phase when it needs to divide. In this phase the cell replicates its DNA. Replication just means the cell makes a copy of its DNA. In G2, the cell undergoes further preparations for cell division. Finally, we have cell division in the M phase. The M phase consists of mitosis, which is nuclear division, and cytokinesis, or division of the cytoplasm. We'll explore the details of mitosis and cytokinesis separately. [music]
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2 жыл бұрын
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2 жыл бұрын
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2 жыл бұрын
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Жыл бұрын
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Жыл бұрын
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7 ай бұрын
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6 ай бұрын
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3 ай бұрын
skibidi toilet
@Check_Hook
3 ай бұрын
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20 күн бұрын
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15 күн бұрын
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This helped me alot in studying cell division as ztopic of cell division in our biology book Thank you so much
Very well explained and understandable! 👍 Gonna need this for my Biology exam tomorrow
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100% quality explanation...
These are very useful way to learn thanks
This was a nice “big picture” overview of the cell cycle.
Please make more animations These are really helpfull for neet asprirants like me 😊
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Upload more videos related to biology topics... It's very helpful .. Thanks for sharing n teaching in such a interesting way
I never understand the cell cycle of my school and tuesion teacher But you are teaching great sir 👏👏👏❤️❤️
These are really very useful
@Check_Hook
3 ай бұрын
the rizzler of the toilets to the skibidi
Thanks sir it is very educative
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Excellent
Thank you
Grt explanation
Am really going to need this for my exams tomorrow
My best teacher bring out more vedio on anatomy please
Wrong animation in G1phase and s -phase and G2 phase dna is not found in condensed form it is present in nucleus in form of chromatin first time dna condensation start in Prophase of M-phase
@california4775
Жыл бұрын
True
@jivikakulkarni5929
4 ай бұрын
yes correct and it bothers me that they showed S phase longer than G1, whereas G1 is the longest phase
@DheerajPatel-wp4hn
Ай бұрын
And G1 phase is the longest phase in entire cell cycle.
These animations are far better than ncert book 🙂
Nice video.awesome and supper. But apload full lesson
I cant believe that i understood this lesson within 4 mins using this video. I hated this part for the last couple of years, caz no matter how i studied it,i just couldnt understand it, thankyou so much
My request please apload photosynthesis in plants soon. Because I have biology weekly test on Monday plz . It Will help full for me. Plz I want full lesson. Help to get good mark
😭thnku so much i was confuse between g1 phase and s phase of chromosomes but not now thnku again😭😭
thanks sir😗👍
I've been on an NHS waiting list for 4 YEARS!
Thanku so much ☺️ But please try to make video in Hindi also 🙏🙏
Do upload various videos
Tq
this will make us people good cell scientests
This channel is very useful for all biology students 👏 Thank a lot and we are leaning a lot of information and 3D view 😊
Hello classmates 🎉👋
@realschnazzy
Жыл бұрын
High kian
@realschnazzy
Жыл бұрын
Hi kian
@nadamohamad53
7 ай бұрын
Heyyy!
@banasmitatalukdar
2 ай бұрын
Hi ❤
@drwysh5122
2 ай бұрын
yes
should have used a diploid cell to illustrate
I am in 11 class i am doing this chapter from your channel
Like it
G0?
2n=3?
Супер!
Can we say that the cell becomes 4n in S phase?
@jivikakulkarni5929
4 ай бұрын
there is no increase in chromosome number or the entire genotype would change but the amount of DNA per cell doubles so if the initial DNA were, say, 2C, after S phase, it becomes 4C, but the chromosome number stays the same, say, n for haploid cells or 2n for diploid cells
The mitotic phase has two stages : Karyokinesis and Cytokinesis. There's a bit of wrong explanation.
complete video of meiosis
The nucleus is visible when cell is: Dividing Not dividing Resting All these
@jivikakulkarni5929
4 ай бұрын
nucleus is visible at any time while viewing a cell but if you say chromosomes then it is the metaphase
@DheerajPatel-wp4hn
Ай бұрын
@@jivikakulkarni5929 neet aspirant ??
Great visual - Question: Aren't all somatic cells an even number - 1/2 from the egg and 1/2 from the sperm? Shouldn't there always be an even number of chromosomes for a Cell Cycle?
@StellaDimitrova-rw7ht
5 ай бұрын
Yes, typically, but it is important to note that exceptions can occur due to genetic abnormalities.
100%
Hello
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@aboodgold9456
Жыл бұрын
😂😂
When does the cell death happen, this video is incomplete
Please explain with urdu
😊...Sir, G1 phase is the longest phase of cell cycle..... Am i right...?🙄
@jivikakulkarni5929
4 ай бұрын
yes
@ismilkhan9659
2 ай бұрын
nope it took 9 hours where as S phase took 10 so S is the longest phase
@jivikakulkarni5929
2 ай бұрын
@@ismilkhan9659 G1 is the longest phase, if we're talking about humans, then G1 takes 11 hours, S takes 8, G2 takes 4 and M takes 1 hour
@user-dt2dk8mn7r
2 ай бұрын
No.. Interphase is longest phase which include G1, S & G2.
@jivikakulkarni5929
2 ай бұрын
@@user-dt2dk8mn7r yes and within interphase, G1 is the longest
hi guys👋 i have an exam tomorrow, im about to give up
In s phase does chromosomes duplicate?
@beautifulsoul.14
3 ай бұрын
No.
so i’m doing grade 9 science and i got told that it was once grade 12 then they moved it down to grade 9…wish me luck☹️
@xiao4017
9 ай бұрын
They have it at grade 8 science here
Can everyone tell in which class you are studying this 😊😊
🕶
Man cell cycle is in too brief
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Please give g note vidio...
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@destructionoflife1095
Жыл бұрын
💀🗿
@syedacreation2657
Жыл бұрын
🤣🤣🌬️
I was forced to watch this in school:(
Convert to Hindi please
nice video i was able to find my girlfriend's g point
@chhpoww4617
7 ай бұрын
I agree I liked it very much
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5 ай бұрын
I want to keep the best scientist alive in all cost
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Please remove this video from KZread 😢
Please remove this video from KZread 😢
@xiao4017
9 ай бұрын
Why
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9 ай бұрын
@@xiao4017 Marzi meri
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9 ай бұрын
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