1. True/False: Cell Size Limitations
Cells come in a variety of shapes and sizes
Osmosis limits cell size
The smaller the cell, the faster diffusion occurs
DNA limits cell size because it limits protein production
Cells can have more than one nucleus
As cell size increase, the surface area increases faster than the volume
If a cell is too large, the cell cannot diffuse materials in and out of the cell quick enough to remain healthy.

2. Cell Reproduction & Cell Cycle
Chapter 8.2

3. Cell Reproduction Cell division (MITOSIS)
process that forms new cells from one cell
results in two cells that are identical to the original, parent cell.

4. Importance of Cell Reproduction
Growth (increase in size)
Repair (replace dead or damaged cells)

5. Chromosome Chromosomes- tightly coiled DNA (chromatin)
Carries the genetic material that is copied and passed from one generation of cells to the next.

6. Parts of the Doubled Chromosome
1= Sister Chromatids
Exact copies of DNA
2= Centromere
Structure that holds sister chromatids together

7. Cell Cycle Sequence of growth and division of a cell
Growth period= Interphase
Nuclear Division= mitosis

8. Interphase Majority of cell’s life spent at this stage
Cell grows in size
Carries on metabolism
Chromosomes duplicate

9. Interphase 3 parts: G1: Rapid growth and metabolic activity
S: Cell copies its chromosomes (DNA synthesis & replication)
G2: Growth period- mitochondria & other organelles are made and cell parts needed for cell division are assembled