Bio Math

Question 1

What is the overall magnification of a light microscope with a 40X objective lens and a 10X eyepiece lens?

Answer 1

400X

Overall magnification is calculated by multiplying the objective lens magnification by the eyepiece lens magnification.

Question 2

If the eyepiece lens lens is 10X and the overall magnification is 600X, what is the magnification of the higher-power objective lens?

Answer 2

60X

This is calculated by dividing the overall magnification by the eyepiece magnification.

Question 3

Using a light microscope with a low-power (4X) objective lens, if the diameter of the field of view is measured as 1.5 mm, what is the diameter in micrometers?

Answer 3

1500 micrometers

1 mm equals 1000 micrometers, so 1.5 mm equals 1500 micrometers.

Question 4

What is the length of the specimen if it takes up 1/3 of the field diameter when viewed under a microscope with a field diameter of 1.5 mm?

Answer 4

0.5 mm

Length of the specimen is calculated as 1.5 mm divided by 3.

Question 5

Complete the table below to compare the ways in which substances move in animals and in plants.

Answer 5

Diffusion, Osmosis, Active Transport

These are the primary methods of substance movement in both animals and plants.