To determine: The ratio of surface-area-to-volume if a cell is a perfect cube and has a length of 100 µm.
Introduction: Every organism present in the environment is composed of cell. Cells perform a number of important activities that help in the survival of an organism. These activities are known as cellular activities. The plasma membrane is the outermost layer of a cell that protects it from the external environment.
To determine: The ratio of surface-area-to-volume if a cell is a perfect cube and has a length of 200 µm.
Introduction: Movement of molecules takes place from inside to outside and vice-versa in the living cells. There are two types of movement, endocytosis, and exocytosis, which are adapted for the movement of molecules across the cell membrane.

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Chapter 4 Solutions
PRINCIPLES OF LIFE - LAUNCHPAD (1 TERM)
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