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
Ilia_Sergeevich [38]
3 years ago
13

Melissa is studying a Gram-stained slide of curd bacteria. She sees many rod-shaped, violet-colored bacteria.

Biology
2 answers:
Genrish500 [490]3 years ago
7 0

Answer:

They are gram positive bacteria

Explanation:

To find out if the bacteria is gram negative or gram positive, the Gram Test is done. This test allows bacteria to be viewed under the light microscope, since without staining it is impossible to observe or identify their structure. The Gram Test involves 3 main steps:

• Crystal violet staining (a water soluble dye, purple);

• Discoloration (using ethanol / acetone);

• Counterstaining (using Safranina dye, red).

After the test, bacteria that are violet-colored in the dye (such as the bacteria Melissa is observing) are called Gram positive. Gram-positive bacteria retain the violet crystal due to the presence of a thick layer of peptidoglycan (a polymer made up of sugars and amino acids that originates from a mesh outside the cell membrane of the bacteria) in their cell walls, showing the color Violet.  Gram-negative bacteria, on the other hand, have a thinner peptidoglycan wall that does not retain the violet crystal during the discoloration process and are red in the final staining process.

fgiga [73]3 years ago
6 0
It seems that you have missed the necessary options for us to choose from, but anyway, here is the answer. When Melissa is  studying a Gram-stained slide of curd bacteria, she <span>sees many rod-shaped, violet-colored bacteria and the type of bacteria are they are LACTOBACILLI. Hope this answers your question.</span>
You might be interested in
If you walk through a busy crowd and feel a few different people bump and push past you as they walk by, which skin receptors wo
Likurg_2 [28]

Answer:

Mechanoreceptors would be activated

Explanation:

The skin is a complex organ that is found covering the entire surface of the human body. The mechanoreceptors are responsible for the sense of touch, that is, the capture of pressure on the skin. They are the Meissner corpuscles and the Vater-Pacini corpuscles, which are made up of nerve endings and connective tissue, in other words, they are receptors that are stimulated by muscle contraction and pressure on the joint elements. It allows to know the position of the body and the degree of contraction of the muscles.

5 0
2 years ago
What is a normal resting heart rate for adults, according to the american heart assocition
Reil [10]

Answer:

from 60 to 100 beats per minute

4 0
3 years ago
A coyote, which can alter its food intake to match seasonal abundance of plants, fruits, or small animals, is considered to be _
love history [14]
The answer is a generalist, able to be flexible in major dimensions of its niche. In addition, as coyotes extended their variety they also extended their set menu. As soon as omnivores restricted by the grassland fauna of rabbits, mice, and insects they now resourcefully consume the whole thing from small mammals and birds to livestock and animals, bounties and vegetables, meat and trash. Their environment has also extended to contain a collection of natural and social altered environments as well as the woodlands, the savannahs and the swamplands, the parks and the golf courses, the suburban backyards, and the urban expansions.
6 0
3 years ago
Viruses smaller than the host they infect
irina [24]
Viruses are much smaller then cells, viruses have genetic material DNA or RNA and cells also have genetic material
7 0
3 years ago
Why is scientific inquiry a process with many paths not a rigid sequence of steps?
Anna71 [15]
Scientific inquiry process discusses to the varied means in which scientists study the natural world and suggest clarifications founded on the evidence derived from their work.  Since there are many different kinds of problems that science can address, and the "scientific method" that's taught in class isn't appropriate for every type of investigation because different questions may require different approaches to finding answers. That’s why scientists custom-build the procedures (like a process with many parts) they will use depending on the unique challenges of the problem they are trying to solve.
8 0
3 years ago
Other questions:
  • 4 The graph below shows how the activity of an enzyme changes
    9·1 answer
  • A landscaper sprays a lawn with a pesticide that is 96% effective. If there are around 50 grasshoppers living on the lawn before
    8·1 answer
  • Which statement below is most accurate about the processes of mitosis and meiosis?
    13·2 answers
  • Which landform is created by a glacier? A. Moraine B. Alluvial Fan C. Sand Dune D. Delta
    9·2 answers
  • Homeostasis is the regulation of an organism’s internal environment to maintain conditions suitable for life. Homeostasis requir
    5·1 answer
  • A knife is an example of a(n) _______.
    6·1 answer
  • Explain the processes of transcription and translation
    13·2 answers
  • What is a compression in physical science
    14·2 answers
  • Which statement is true of meiosis?
    9·1 answer
  • 3. What determines which traits will be passed on to the next generation in 3 points the greatest frequency? * b. random mutatio
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!