Biology Chapter 10 Test Multiple Choice
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14 Terms
How do multicellular organisms grow?
by producing more cells via cell division
Why do cells divide rather than just continuing to grow larger? (1)
because of the relationship between cell size and the amount of DNA in the cell
Why do cells divide rather than just continuing to grow larger? (2)
because of the relationship between surface area and volume
Why is the relationship between surface area and volume important?
Because beyond a certain size, there isn't enough surface area for all the oxygen, nutrients, and wastes that must cross
What is the result of mitosis and cytokinesis?
2 new cells, each of which contain a full set of DNA
What is the significance of mitosis and cytokinesis to unicellular organisms?
Reproduction
What is the significance of mitosis and cytokinesis to multicellular organisms? (1)
growth
What is the significance of mitosis and cytokinesis to multicellular organisms? (2)
maintenance
What is the significance of mitosis and cytokinesis to multicellular organisms? (3)
repair
What regulates cell division?
Surface area to volume ratio
What regulates cell division (2)
Growth factors
What regulates cell division (3)
Contact inhibition
How do cells end their life cycle? (1)
accident due to damage or injury
How do cells end their life cycle? (2)
programmed cell death