SC15.BIO.4

Science (2015) Grade(s): 09-12 - Biology

Developing and Using Models

Systems and System Models

Students know:

The phases of the cell cycle (Interphase-G1, S, and G2 phases, Mitosis and cytokenisis), the amount of time spent in each cycle and what occurs during each cycle.
The process of cell cycle regulation.
Mechanisms, checkpoints and signaling factor molecules that regulate the cell cycle.

Students are able to:

Generate a graphic illustrating the amount of time a cell spends in each phase of the cell cycle.
Observe video, image or microscope slide and identify cells in each phase, relative abundance, and estimate the time spent in each phase.
Obtain and communicate information about the relationship between the cell cycle and the growth and maintenance of an organism.
Illustrate chromosome behavior during mitosis using chromosome models.
Distinguish between replicated and un-replicated chromosomes.
Demonstrate the events and cellular processes involved in each stage of mitosis.
Investigate the impact of errors in the process of cell division.
Identify the basic mechanisms, checkpoints, and general categories of signaling factor molecules (both internal and external).
Relate errors in control mechanisms to uncontrolled cell growth (cancer).

Students understand that:

The cell cycle is necessary for growth and maintenance in multi-cellular organisms.
Mitosis only makes somatic (body) cells.
Errors in control mechanisms within the cell cycle lead to uncontrolled cell growth (cancer).