1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Strike441 [17]
3 years ago
5

Why we used dyes when we prepare onion , human cheek eqithelium smears, and didn’t use it in cork and leaf epidermal cells smear

s!?
Biology
2 answers:
Ad libitum [116K]3 years ago
7 0

Answer:

Explanation:

Staining is done for onion cells to visualize the cytoplasm of yellow and white onions because they are not pigmented. The staining of human cheek cells with methylene blue is necessary to stain the nucleus to get clear image of it under microscope because methylene blue binds to negative charge nucleic acids  

While for leaf epidermal cells smears, staining is not necessary as they are visible under light microscope without staining and they also have pigmented materials inside them such as chlorophyll chloroplast.  The cork cell is a non-living and have a cell wall whose structure is visible under light microscope.  

Lapatulllka [165]3 years ago
5 0

Staining is done for onion cells to visualize the cytoplasm of yellow and white onions because they are not pigmented. The staining of human cheek cells with methylene blue is necessary to stain the nucleus to get clear image of it under microscope because methylene blue binds to negative charge nucleic acids  

While for leaf epidermal cells smears, staining is not necessary as they are visible under light microscope without staining and they also have pigmented materials inside them such as chlorophyll chloroplast.  The cork cell is a non-living and have a cell wall whose structure is visible under light microscope.  

You might be interested in
What would happen if the fatty acids in cell membrane were polar molecules
Novay_Z [31]
The cell would dissolve in water
7 0
3 years ago
Read 2 more answers
What caused the plant and/or bag of chips to move in the investigation?
mihalych1998 [28]

Answer:

It's bounce off the plant or bag

Explanation:

7 0
3 years ago
A person's bone marrow produces red and white blood cells. Which of the following best describes how damage to a person's bone m
nignag [31]
Damage in the bone marrow, called as aplastic anemia leads to lower production of both red and white blood cells, causing oxysgen starvation and infection.
Platelets are also reduced.

5 0
3 years ago
what is the Science of naming and classifying organisms based on structural comparisons and genetic evidence
lara [203]

Answer: The science of naming and classifying organisms based on structural comparisons and genetic evidence, is known as taxonomy, a branch of biology.

Explanation: Taxonomy is very important. By categorizing organisms, this branch of biology helps scientists to exchange vital biological information, and therefore understand the diversity of species in our planet.

4 0
2 years ago
When 2 organisms donate half of their genetic material to make one new genetically unique organism. What is this called?
just olya [345]
It is called genetic enginering
5 0
3 years ago
Other questions:
  • Carriers of the sickle-cell allele (i.e. those with a heterozygous genotype) are fittest in environments with high frequencies o
    6·1 answer
  • What are the functions of human organs of speech?
    6·2 answers
  • How can an angiotensin converting enzyme inhibitor (ace inhibitor) such as captopril be effective as an antihypertensive? how ca
    7·1 answer
  • Why are carbon dioxide concentrations expected to increase?
    14·2 answers
  • What are some of the effects of the enhanced greenhouse effect?
    5·2 answers
  • A plant with the genotype TT is called _____<br> A.homozygous<br> B.heterozygous<br> C.hybrid
    10·2 answers
  • Coal is made from the remains of dead plants. it is made of carbon and other elements. is coal a mineral? a,yes, because it is f
    5·1 answer
  • What basic substances make up a cell
    9·2 answers
  • Which of these is dictated by the law of supply and demand?
    6·1 answer
  • Synovial joints ________. Group of answer choices are joints where the bones articulate with each other within a fluid-filled jo
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!