Question

I did a lab about microscope in the bio class, but our group didnt finish the lab, so here are 3 lab questions i dont know but i need the answers!!!
16. Count and record the number of starch grains on one filed of view under low power.
17. Without moving the slide, switch to high power. Count and record the number of grains in one filed of vision.
18. How does the number of grains you have counted under high and low power relate to the relative sizes of the high and low power fields? how do you explain this relationship?

Answer 1

i know it is not easy to answer but based on ur prior experiences....

Answer 2

I am unable to answer #16 and #17 because I don't have the slide in front of me to count the number of starch grains!

However, I can tell you that for #18, the number of grains you count under a higher magnification will be less than the number of grains you count under a lower magnification. This is because the higher the magnification, the less your working distance is between your slide and objective lens.

Think of this concept like using the "zoom-in" on your camera. Let's say you are zooming in on your hand. From a further distance (Ex: low power on microscope), you can see your entire hand. However, now you zoom in (Ex: high power on microscope) and can now only see a part of your hand, maybe a finger or two.

Likewise, the number of starch grains you will find will be less under high magnification because your "field of view" will be less than if you were looking at the starch grains under a lower magnification.

Answer 3

omg its long and i just saw it, thank u very much! i finished the lab, i googled the picture of starch grains and counted...