Biology First Semester Review

As a cell becomes larger, its

• surface area increases faster than its volume.
• volume increases faster than its surface area

The larger a cell is, the more difficult it is for the cell to move enough nutrients and wastes across its cell membrane to maintain its normal functions.

• True
• False

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As a cell’s size increases, its ratio of surface area to volume decreases.

• True
• False

The process by which a cell divides into two daughter cells is called

• Mitosis
• Meoisis
• Cell Division

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Cells of organism must replicate for ?

• growth
• repair of damaged cells
• replacement of dying cells.
• All of the above

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High Surface area to volume ratio allows cells to do what quickly?

• Move materials around inside the cell
• Move materials in and out of the cell 
• Communicate to other cells
• Divide

This image shows how materials move into various sized cells in a given amount of time.... why does one square cell have more pink coloring than the others? 

• The surface area was too larger to get through
• The volume of the other cells was too large for the dye to get through
• There was not enough surface area for the dye to get through
• The volume was too low for the dye to stay in the square

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Microvilli are tiny projections that extend off the cell to increase the Surface Area.  What purpose might that serve? 

• Increased absorption
• Better communication among cells
• Maintain homeostasis 
• Decreased oxygen use

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Which structures are found in every living cell?

• cell membrane and cytoplasm
• chloroplasts and mitochondria
• a cell wall and nucleus
• chloroplasts and cell wall

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Which cell structure is found in plant and animals cells and controls what can come into or leave a cell?

• cell membrane
• cytoplasm
• nucleus
• vacuole

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