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WorksheetsCell Size - AP Biology
Total questions: 13
Worksheet time: 9mins
What is the smallest unit of an organism that can perform life functions?
Organ system
Organ
Tissue
Cell
The idea that all living things are composed of cells, the cell is the basic unit of structure and function, and all cells come from cells is known as the
Theory of relativity
Agenda Theory
Cell Theory
Theory of naturalization
Because cell function is so heavily dependent on effectively transporting materials across the cell membrane, cell size is limited due to the need for a (a) ratio of surface area to volume.
An intestinal virus infects and destroys cells lining the intestine. Normal intestinal cells have infoldings of the plasma membrane call microvilli where the cells absorb nutrients through the membrane. As cells regrow, the microvilli are short and incomplete. Affected cells are on the left. Which of the following would best describe the effect of the shorter microvilli
it decreases the space for more Golgi bodies , which reduces production of proteins
it decreases the number of mitochondria, which affects energy production
shorter microvilli decrease the surface area of the membranes, which means less absorption of nurtients
shorter microvilli reduces the amount of lipids, affecting the fluidity of the membrane
Healthy intestinal cells absorb nutrients through their membrane. Above are measurements of 4 different cells. Which of the following would provide the most efficient absorption of nutrients?
cell 1
cell 2
cell 3
cell 4
Which solid with a volume of 12 sq. units would have the greatest surface area to volume ratio?
1cm x 1cm x 12cm
1cm x 2cm x 6cm
1cm x 4cm x 3cm
2cm x 2cm x 3cm
