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How would you describe the morphology and arrangement of the cells in your stained preparations?
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∙ 7y ago
Bacterial cells typically have one of three shapes: spherical (coccus), oblong (bacillus), or curved (spirillum of vibrio). Depending on the plane of binary fission, cells form chains, clusters with various geometry, or single cells.
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Why do scientists stain slides when looking at them?
Bacteria are difficult to see when they are not stained because they are almost colorless. 1. Staining a slide enables a high contrast between the bacteria and the background. 2. It defines the bacterial morphology (size, shape and arrangement). 3. It enables us to observe structures like flagella, capsules and endospores.
Advantages of positive and negative staining for morphological study of bacteria?
Positive staining allows the bacteria to be directly stained and visualized under a microscope, which helps in studying their size, shape, and arrangement. It also provides valuable information about the cell wall structure and composition. Negative staining, on the other hand, allows the visualization of bacteria that are otherwise difficult to stain due to their thin or delicate cell walls. It provides better contrast and allows for the observation of fine morphological details of the bacteria.
What would you expect to see inside the stained cells nucleus?
It would be the color you stained.
What three noteworthy physical characteristics of Corynebacterium diphtheriae are visible after performing a simple stain?
Pleomorphism, metachromatic granules, and palisade arrangement. Pleomorphism refers to the fact that C. diptheriae is rod-shaped but can appear club-shaped, needle-shaped, or spermlike. Metachromatic granules are reddish-purple granules that are visible when stained with metylene blue. Palisade arrangement refers to the presentation of rods in a parallel fashion that looks like a picket fence.
What substance is stained by Sudan dye?
fats (Lipids)
How would you describe the morphology and arrangement of the cells in your stained preparation?
Bacterial cells typically have one of three shapes: spherical (coccus), oblong (bacillus), or curved (spirillum of vibrio). Depending on the plane of binary fission, cells form chains, clusters with various geometry, or single cells.
Why are microorganisms hard to see in wet preparations?
They are hard to see because they are not stained so they blend into their surroundings.
What is the medical term meaning stained blood smear is examined to determine the shape of individual red blood cells?
The medical term meaning stained blood smear is examined to determine the shape of individual red blood cells is called a peripheral blood smear. This test is commonly used to assess the morphology and appearance of red blood cells, which can provide valuable information about various blood disorders.
Why are living unstained bacterial preparation more difficult to observe microscopically than stained preparations?
Staining adds contrast making the bacteria easier to see.
What phrase does not describe a Gothic cathedral?
pointed arches and stained-glass windows" does not describe a Gothic cathedral, which in general have more "studded" tops that allow for great room inside.
Describe the characteristic of Gothic stained-glass windows?
To illiterate people could understand their illustrated biblical scenes and figures.
What is the cell morphology and cell arrangement of mycobacterium tuberculosis?
Weakly gram-positive, strongly acid-fast, aerobic bacilli (rod). Lipid-rich cell wall, making the organism resistant to disinfectants, detergents, common antimicrobial drugs and traditional stains.Capable of intracellular growth in inactivated alveolar macrophages.Disease primarily from host response to infection.Arranged in colonies
Stained Glass Windows?
form_title= Stained Glass Windows form_header= Create an elegant atmosphere with stained glass windows. Please describe your desired design in detail.*= _ [50] What are the dimensions of the window(s)?*= _ [50] How many windows do you want to have stain glass?*= {1, 2, 3, 4, 5, More than 5}
A is a display of a cell's chromosomes which have been stained and organized into matching pairs based on their length centromere position and staining pattern?
This sort of organized arrangement of chromosomal staining patterns is called a karyotype
How are tzanck preparations done?
is done by smearing cells taken from a fresh blister or ulcer onto a microscope slide. The cells are stained with a special stain, such as Wright's stain, and then examined under a microscope for characteristic changes caused by a herpes virus
Why do scientists stain slides when looking at them?
Bacteria are difficult to see when they are not stained because they are almost colorless. 1. Staining a slide enables a high contrast between the bacteria and the background. 2. It defines the bacterial morphology (size, shape and arrangement). 3. It enables us to observe structures like flagella, capsules and endospores.
What is meant by unremarkable peripheral blood film morphology?
An unremarkable peripheral blood film morphology refers to a blood sample that appears normal under a microscope, with no significant abnormalities or abnormalities that are within the normal range for a healthy individual. This usually indicates that the different types of blood cells are present in normal proportions and exhibit typical characteristics.
