))
Regulation of Cell Cycle
Manage episode 293594074 series 2859788
Hopewell Valley Student Publications Network에서 제공하는 콘텐츠입니다. 에피소드, 그래픽, 팟캐스트 설명을 포함한 모든 팟캐스트 콘텐츠는 Hopewell Valley Student Publications Network 또는 해당 팟캐스트 플랫폼 파트너가 직접 업로드하고 제공합니다. 누군가가 귀하의 허락 없이 귀하의 저작물을 사용하고 있다고 생각되는 경우 여기에 설명된 절차를 따르실 수 있습니다 https://ko.player.fm/legal.
My AP Biology Thoughts
Unit 4 Cell Communication and Cell Cycle
Welcome to My AP Biology Thoughts podcast, my name is Alex Jing and I am your host for episode #96 called Unit 4 Cell Communication and Cell Cycle: Regulation of Cell Cycle. Today we will be discussing How cells regulate their division
Segment 1: Introduction to Cell Cycle Regulation
- The cell cycle includes 4 main stages: G1, S, G2, and mitosis. These phases are responsible for the division of cells. However, how do the cells determine when they can proceed to the next stage of the cell cycle?
- Cells regulate their advancement in the cell cycle through the use of Cyclin-dependent kinases, or CDKs, and CDK inhibitors. When CDKs are active, they phosphorylate other enzymes in the cell responsible for activating the next stage of the cell cycle. CDK inhibitors are receptors that when activated, will inhibit the CDKs, preventing the cell from going to the next stage.
Segment 2: More About the Regulation of the Cell Cycle
- A prominent example of why CDKs and their inhibitors are so important is the development of cancer. Cancers form when cells are growing at an rapid, unrestricted rate, and are usually caused by some mutations in the cell which results in either overactive CDKs or inactive CDK inhibitors. P53 is a CDK inhibitor which is responsible for ensuring that DNA is not damaged during the replication process. If it detects damaged DNA it will send out signals to inhibit the CDKs. If a mutation caused the P53 to not be responsive, than cells could be able to divide with damaged DNA, leading to a new cancer to form.
Segment 3: Connection to the Course
- Regulation of the cell cycle is an essential part of all living organisms. Being able to conduct mitosis is what allows organisms to grow and replace damaged cells, and being able to regulate this process is extremely important to ensuring that division is done correctly.
Thank you for listening to this episode of My AP Biology Thoughts. For more student-ran podcasts and digital content, make sure that you visit www.hvspn.com.
Music Credits:
- "Ice Flow" Kevin MacLeod (incompetech.com)
- Licensed under Creative Commons: By Attribution 4.0 License
- http://creativecommons.org/licenses/by/4.0/
Subscribe to our Podcast
Connect with us on Social Media
Twitter @thehvspn
130 에피소드
공유
