Here's what went down today!

Here's what went down today in Mrs. Stein's 8th period bio class! We took notes on 10.3 which was all about regulating cell cycles. We learned that cyclins were the proteins that regulated the cycle. During interphase, they signal spindle information. How exciting! 2 types of regulators are INTERNAL REGULATORS and EXTERNAL REGULATORS. Internal regulators check the cell and make sure the cell is ready for mitosis. It's giving it approval, like the "Go ahead!" External regulators speed and slow down cell division.

We learned that the causes of cancer are:

*Carcinogens (cancer-causing chemicals)

*Mutants ( DNA overproduce growth factors)

*Some viruses (they mess with your DNA)

After we took these fantastic notes, we got in our lab groups and make sure our big bird stamp sheets were finished. Then the bell rang!