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Learn about the basic principles of cell signaling and how cells communicate with each other.
Unit 4: Cell communication and cell cycle - Khan Academy
Prepare to dive deep into the inner workings of cells! In this unit, you'll learn about how cells communicate with one another, how cells divide, and how problems can arise when these processes go wrong.
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How cancer can be linked to overactive positive cell cycle regulators (oncogenes) or inactive negative regulators (tumor suppressors).
Cell cycle control (video) | Khan Academy
The cell cycle is tightly regulated by checkpoints between the G1 and S phase, and between the G2 and mitosis. Key proteins, cyclin-dependent kinases and cyclins, control this process. Cyclins are produced at specific times, activating the kinases and …
Cell signaling in yeast reproduction (video) | Khan Academy
Yeast cells secrete a signal molecule called mating factor that attracts them to their mates. Once the mating factor of one yeast binds to the receptor on another yeast, an outgrowth called a "shmoo" forms, which allows the yeast cells to fuse together.
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Signal transduction is a complex process where cells communicate through chemical signals. This involves a ligand binding to a receptor, initiating a cascade of events that can alter cell behavior. The Map kinase pathway, crucial in cell differentiation and replication, is …
EU 3.D - Cell communication (practice) | Khan Academy
Which of the following provides evidence that cell signaling evolved in early life?
Cellular communication - Khan Academy
Cell communication is crucial for complex organisms. Cells can communicate directly through contact or indirectly via chemical signaling. This communication can occur over short distances, such as between neurons, or long distances, like hormonal signaling in the endocrine system.