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Solved by Expert Tutors
Question

1.    Using the letter "e" slide and the 4x (scanning) objective lens:

 

a.    Using the circle on the right, draw the letter "e"

exactly as it appears under the 4x objective lens.

 

 

Note that you can snap a photo with a smartphone

or take a screenshot of your computer screen of

the 4x image instead of drawing it here. Label the

photograph as "3a" and include it with your submitted

work if you choose to use this method.

 

 

b.    What is the total magnification of the image?

 

 

 

 

c.    How is the orientation of the letter "e" as seen through the microscope different from the way an "e" normally appears?

 

 

 

 

d.    If the letter "e" is not lighted brightly enough or is too bright, what part of the microscope would it be best to adjust?

 

 

 

 

 

e.    In what direction does the image appear to move when the stage is moved to your left?

 

 

 

f.      In what direction does the image appear to move when the stage is moved away from you?

 

 

 

 

 

 

 

2.    Using the letter "e" slide and the low power (10X) objective lens:

 

a.    How has the image of the letter "e" changed when you switched from the 4X to the 10X objective lens? Could you still see the full letter "e"?

 

 

 

 

 

3.    Using the letter "e" slide and the high power (40X) objective lens:

 

a.    Could you see the entire letter "e" with the 40X objective lens in place?

 

 

 

b.    Is your field of view on high power larger or smaller than the field of view on low power?

 

 

 

 

 

4.    


Using a cheek cell slide:

 

a.    In the circle on the right, draw a picture of

one cheek cell viewed under high power (40X) and

label the nucleus, cell membrane, and cytoplasm.

 

Note that you can snap a photo with a smartphone or

take a screenshot of your computer screen of the 40x

image. Label the photograph as "7a" and include it

with your submitted work if you choose to use this method.

 

 

 

5.    


Using the onion root tip slide

 

a.    In the circle on the right, draw the cells of

the onion root tip as you see them under the

microscope at 40x. Label all the organelles and

cell structures you can identify.

 

Note that you can snap a photo with a smartphone

or take a screenshot of your computer screen of

the 40x image. Label the photograph as "7a" and

include this with your submitted work if you choose

to use this method.

 

6.    


Using the bacterial cell slide

 

a.    In the circle on the right, draw the cells of

the bacteria as you see them under the

microscope at 100x. Label all the organelles and

cell structures you can identify.

 

Note that you can snap a photo with a smartphone

or take a screenshot of your computer screen of

the 100x image. Label the photograph as "15a" and

include this with your submitted work if you choose

to use this method.

 

 

 

7.    What do prokaryotic cells have instead of a nucleus?

 

 

 

 

 

8.    Fill in the blanks with one (or more) of these choices: plant cell, animal cell, or bacterial cell. Questions may have more than one answer and answers can be used more than once.

 

a.    You observed some cells through a microscope. You did not see any organelles in these cells.

These cells are ____________________________________

 

b.    You saw a cell with a flagellum, but it wasn't a sperm cell.

 

The cell observed is a _______________________________

 

c.    You saw a cell with a cell wall. Which type(s) of cells would not be a correct identification?

 

The cell is not a(n) __________________________________

 

 

 

 

 

 

9.    Fill in the blanks:

 

a.    Three organelles and/or cell structures that are found in plant cells, but not in animal cells are: ___________________, __________________, and _____________________.

 

b.    The structure where proteins are manufactured is a: ____________________.

 

c.    An infertile man has a sperm sample tested and discovered the sperm have low motility (don't swim normally). The malfunctioning cell structure in these sperm is a: ______________________________.

 

d.    Two structures that a material would have to cross to enter the cytoplasm of a plant cell are the ___________________ and the ________________________.

 

e.    ______________________ would be more numerous in muscle cells than skin cells, due to the higher energy needs muscle cells have.

 

f.      The ___________________________ is responsible for manufacturing fats (lipids) for use and storage in a cell.

 

g.    The location where genetic information is stored is the: ___________________.

 

h.    The location in the cell where most organelles can be found is the: ________________________________.

 

i.      The ____________________________________ allows some materials to enter the cell, but not others.

 

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Subject: Biology, Science

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