Compared with a smaller cell, a larger cell of the same shape has a. less surface area. b. less surface area per unit of volume. c. the same surface-area-to-volume ratio. d. a smaller cytoplasm-to-nucleus ratio.

Video transcript

Hi everyone. Let's look at our next problem as a seller organism gets bigger. The surface area to volume ratio blank. And so we want to think about CSL and let's think of a little tiny cell almost like a giant cell. And look at the amount of content here in our cell. So here's the inside of the cell. And inside here as compared to the amount of surface area. And we can see sort of intuitively that the small cell here, you're looking at surface area over volume as this volume goes up, volumes are denominator. Our services are ratio here is going to get smaller. We're more and more and more interior with less surface area in relation to that versus our you know, see lots of little cells. You can see how many surfaces we have here around these little cells compared to the surface around the large cell. So we'd say that surface area and volume are inversely proportional to each other. So that means as the cell gets bigger, the volume, I'm sorry, the surface area to volume ratio will decrease. So service right volume decreases choice B as the cell gets bigger. So it's not going to increase. As we said, it's an inverse proportion. So no choice a choice. See it will not remain the same, it decreases choice D. It is not equal to one. That will be a changing ratio. See you in the next video