Assignment: Cell Size Exploration Cell
Length of one side
Area of one side of the cube
(l × w)
Surface area (area of one side × 6 sides)
Volume
(l × w × h)
Surface area/volume
The ratio of surface area to volume
(for example, 5:1)
A
1 cm
B
2 cm
C
3 cm
Refer to your data table to answer these questions.

What happens to the ratio of surface area to volume as the cell size increases without the cell changing shape?
What does a surface area/volume ratio of 6:1 mean for the cell’s ability to get the materials it needs that move across its surface?
What does a surface area/volume ratio of 3:1 mean for a cell’s ability to get materials across its membrane, compared to the cell with a ratio of 6:1?

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis

What is a group of organisms that are closely related and share similar characteristics

Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.