Download presentation

1
**Surface Area to Volume Ratios**

Chapter 10: Cell Division

2
Surface Area A measure of the number of square units needed to cover the faces or surfaces of a figure. Surface Area = Length x Width x # of sides

3
**Example of Surface Area**

A cube has 6 equal sides, so the Surface Area = 6 x L2 Example: The length of one side of a cube is 0.5 cm. Calculate the Surface Area of the cube. Surface Area = 6 x L 2 = 6 x (0.5)2 = 6 x 0.25 = 1.5 cm2

4
**Volume The amount of space occupied by a three-dimensional object**

Volume = Length x Width x Height

5
**Example of Volume A cube has 6 equal sides, so the Volume = L3 **

Example: The length of one side of a cube is 0.5 cm. Calculate the volume of the cube. Volume = L3= (0.5)3 = cm3

6
**Example of Surface Area to Volume Ratio**

0.5 x 0.5 x 6 = 1.5 cm 2 Volume 0.5 x 0.5 x 0.5 = cm 3 Ratio of Surface Area to Volume 1.5/0.125 = 12:1

7
**Surface Area to Volume Ratios**

Changes in the surface area to volume ratio are important in determining an organism’s size, and help explain some of the modifications seen in larger-bodied organisms. Imagine a cell shaped like a cube. As the length of the sides of a cube increases, its volume increases faster than its surface area, decreasing the ratio of surface area to volume. If a cell gets too large, its surface area is not large enough to get enough oxygen and nutrients in and waste out efficiently.

Similar presentations

OK

Volume The perimeter of a shape is the total distance around the edge of a shape. Perimeter is measured in cm The Area of a plane figure is the amount.

Volume The perimeter of a shape is the total distance around the edge of a shape. Perimeter is measured in cm The Area of a plane figure is the amount.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on indian history and culture Ppt on preparation and properties of alcohols and phenols Mobile ip seminar ppt on 4g Ppt on mobile number portability Ppt on social media free download Ppt on world book day 2017 Ppt on history of olympics in greece Ppt on social contract theory Ppt on introduction to information security Ppt on temples of south india