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Explain why smaller cells are generally more efficient at nutrient uptake and waste removal compared to larger cells.
Describe how the surface area-to-volume ratio changes as a cell grows and how this affects its metabolic efficiency.
How does the surface area-to-volume ratio influence the design of multicellular organisms?
Explain how the surface area-to-volume ratio affects the rate of diffusion in cells.
Discuss how the surface area-to-volume ratio impacts the design of artificial cells or microcapsules used in drug delivery systems.
Explain why the surface area-to-volume ratio is important for cell function and how it limits cell size.
Describe how the size of a cell affects its ability to perform metabolic functions efficiently.
How does the size of a cell influence its ability to maintain homeostasis?
Discuss how the size of a cell impacts its energy requirements and metabolic rate.
Explain how the size of a cell affects its ability to communicate with other cells.
Describe the structure of microvilli and explain how their presence increases the surface area of a cell.
Explain how the structure of microvilli contributes to their function in epithelial cells.
Compare and contrast the roles of microvilli and cilia in cell function.
How do microvilli contribute to the efficiency of nutrient absorption in the small intestine?
Discuss the importance of surface area in cellular processes and how microvilli contribute to this in absorptive cells.
Describe the structure of microvilli and explain how their presence increases the surface area of a cell.
(Student response here)
Microvilli are tiny, finger-like projections that extend from the surface of certain cells, such as those lining the small intestine. They are covered with a plasma membrane and contain a core of actin filaments. The presence of numerous microvilli significantly increases the surface area of the cell, allowing for more efficient absorption of nutrients and other substances.
Which of the following best explains why microvilli are important for cells in the small intestine?
They produce digestive enzymes.
They increase the surface area for nutrient absorption.
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