Download 10.1 study guide

H Biology 10.1 – Limits to Cell Size
What Factors Limit the Size of a Cell?
The maximum size of a cell is influenced by its requirement for enough surface area
to obtain adequate nutrients and dispose of wastes. Large cells have more surface
area than small cells, BUT large cells have less surface area relative to their volume
than small cells of the same shape
Calculate the surface area – to –volume ratio of the following cubes:
Cube
Surface Area
Volume
1 cm
Ratio
2 cm
3 cm
Read section 10.1 and answer the following questions:
1. Identify two reasons why a cell’s growth is limited.
2. Explain as a cell’s size increases, what happens to the ration of its surface
area –to-volume?
3. Why is this ration important?
Cell Division and Reproduction
How do asexual and sexual reproduction compare?
Cell Division and Reproduction Cell division is part of both types of reproduction:
Asexual reproduction:
 produces genetically identical organisms.
 occurs in many single-celled organisms and in some multicellular organisms.
 allows rapid reproduction of organisms in favorable environments.
Sexual Reproduction:
 produces organisms with genetic information from both parents.
 occurs in most animals and plants and in many single-celled organisms.
 increases genetic diversity, which aids species survival in changing environments.
1.
is the formation of new individuals.
2. For single-celled organisms, cell division is a form of _____________ reproduction.
3. Most multicellular organisms reproduce by _______________ reproduction.
4. Use the table to compare and contrast asexual and sexual reproduction.
Asexual and Sexual Reproduction
Similarities
Differences