Top Posters
Since Sunday
e
4
h
4
h
4
m
3
d
3
B
3
o
3
w
3
H
3
a
3
c
3
k
3
Home Q & A Board Biology-Related Homework Help Cell Biology
New Topic  
linda linda
wrote...
Go to Answer
13 years ago
About microscopes....

A parfocal system of lenses has the advantage of?
a. making the focal length of all lenses the same
b. increasing the depth of focus
c. increasing the brightness of the image by pre focusing the light through an amplifying lens
d. allowing all of the objective lenses to be approximately focused in the same horizontal
plane

Under which conditions is it necessary to use phase-contrast on your microscope?
A) when using a high dry objective
B) When looking at eukaryotic cells
C) when looking at unstained cells

The compound light microscope used in microbio labs can be used to observe
A) Amino acids, nucleus, viruses, and bacteria
B) Bacteria, yeast, paramecium and RBCs
C) Proteins, nucleic acids, viruses and bacteria
D) ribosomes, nucleus, bacteria, and RBCs
Read 783 times
1 Reply
Replies
Answer accepted by topic starter
duddyduddy
wrote...
#1
Staff Member
Top Poster
Posts: 7813
Rep: 1650 16
13 years ago
Sign in or Sign up in seconds to unlock everything for free
1
- Master of Science in Biology
- Bachelor of Science

Related Topics
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  911 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 64
  
 463
  
 374
Your Opinion
Which industry do you think artificial intelligence (AI) will impact the most?
Votes: 484
Previous poll results: Where do you get your textbooks?