1) The function of a cell is determined by the amount of surface area it has. Is
ID: 197312 • Letter: 1
Question
1) The function of a cell is determined by the amount of surface area it has. Is this statement true or false and why?
Multiple Choice
A: False. Cells of equal mass cannot change their surface area; therefore cell mass determines cell function.
B: True. A cell with the same mass can increase surface area with structures like microvilli that enhance absorption functions.
C: False. Fewer cells with equal mass will have greater surface area and therefore greater transport efficiency.
D: True. Greater cell mass always increases cell surface area leading to greater efficiency of transport
2)If mucosal cells, liver cells, intestinal endothelial cells, and macrophages all come from the same organism and are derived from common stem cells early in development, what is the major factor that makes these cells different?
Multiple Choice
A: Genome differentiation
B: Dynamic instability
C: The phenotype
D: The proteome
Explanation / Answer
1) True - A cell with the same mass can increase surface area with structures like microvilli that enhance absorption functions. - The presence of microvilli increases the surface area and in-turn increases the amount of nutrients adsorbed in the intestines. Presence of micrvilli increases the surface area by 25 times. A larger cell has lesser surface area in relation to its volume decreases the efficiency of the transport through diffusion.
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