A cell’s rate of exchanging materials with the environment positively relates to its surface area-to-volume (SA/V) ratio. Cell shape also correlates to its function. Also, spherical cells have the smallest surface area compared to all cells of the same volume but different shapes. Which of the following cell types is likely to have the highest rate of material change?

a flat epithelial cell with a diameter of 5 micron
a spherical immune cell with a diameter of 5 micron
a round mammalian oocyte with a diameter of 1 millimeter
a near-spherical intestinal stem cell with a diameter of 8 micron

i think the answer is a.

keep the tip

after lydia compare her check register to her bank statement, and the ending balances do not seem to match. then, she must make a bank reconciliation by putting the data all together.

to do this, she need to determine the bank ending balance. after, add the deposits in transit then deduct the outstanding checks. moreover, if the actual checkbook balance does not equal this number, check again for transporting errors by subtracting the balances and add the difference to nine. sometimes, a mathematical error can happen but a bank reconciliation is a great tool to resolve the discrepancies.