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1 year ago

Which stains are used to visualize structures in the membrane?

Biology

1 answer:

Rufina [12.5K]1 year ago

5 0

Acid-fast and Gram is used to visualize the structures in a membrane.

It is a differential staining procedure which is used to identify, <em>mycobacterium tuberculosis and M. leprae.</em>

Acid-fast bacteria are considered to be gram-positive in terms of their structure as, they contains peptidoglycan in its cell wall.

They stain poorly with Gram stain procedure, and appears as weak Gram-positive.

Membranes are consisted of lipid bilayer, which is doubled layer of phospholipid, glycolipid and cholesterol molecules, which contains the chains of fatty acids, and

<em>determines weather a membrane is formed into long flat sheets or round vesicles.</em>

To examine the membrane protein structure, Electron microscopy technology is used and it enables the visualization of single protein at nanometers resolution.

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What is the function of photosystems

Mrrafil [7]

Answer:

Photosystems are the functional units for photosynthesis, defined by a particular pigment organization and association patterns, whose work is the absorption and transfer of light energy, which implies transfer of electrons. Physically, photosystems are found in the thylakoid membranes.

Explanation:

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2 years ago

Histological identification of the ____________ of the adrenal cortex is fairly easy as the cells are plump with lipids and arra

Dvinal [7]

Answer:

Zona fasiculata.

Explanation:

Zona fasiculata is present in the middle of the adrenal cortex lies beneath the zona glomerulosa. This layer produces the glucocorticoids especially cortisol that regulates the glucose metabolism.

The zona fasiculata layer can be easily determined historically. This layer of adrenal cortex contains the long cords or column cells and the cells are plump with liquid.

Thus, the correct answer is option (b).

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2 years ago

recall from the video the steps of how to make a wet mount of cheek epithelial cells. place the steps of how to prepare a wet mo

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Place the scanning objective above the specimen by clicking it into place.
To move the stage all the way up, use the coarse adjustment knob.
Use the fine adjustment knob to focus the specimen.
To improve contrast, adjust the iris diaphragm and/or the light control knob.
Move a given structure to the center of your field of view using the mechanical stage controls.

<h3>What is epithelial cells ?</h3>

Epithelial cells are the cells that cover the inside and outside of your body's surfaces. They can be located on your skin, blood vessels, and organs such as your urinary tract.

<h3>What does it mean if my epithelial cells are high?</h3>

If urinalysis findings show a moderate or high number of epithelial cells, it may indicate the following medical conditions: Kidney illness Liver disease Yeast infections Urinary tract infections Certain kinds of cancer.

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10 months ago

Desalinating salt water is one way arid regions are able to obtain drinking water. however, it's not an easy process.

Leya [2.2K]

Drinking Salt water would dehydrate you making you more thirsty and eventually you'd die. You could desalinate small amounts of water by distillation with the appropriate tools all you'd need to do is heat the salt water and catch the vapor/steam in a different container. This could be done slowly using heat from the sun and clear plastic water bottles if no other heat sources are available. the salt stays in the heated container while the vapor/steam is desalinated drinking water.

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2 years ago

Sariah enters a room with several chirping crickets in it. Upon first entering the room, Sariah can hear the chirping; however,

valentina_108 [34]

Answer: a. adaptation

Explanation:

Sensory adaptation can be define as the reduction in sensitivity to a stimulus after a constant exposure to the stimulus. When the awareness and sensitivity towards the constant stimulus reduces, then the attention of the receives diverts to another stimulus present in the environment around it.

The given situation demonstrates the sensory adaptation this is because of the fact that Sariah developed the sensory adaptation towards the constant stimulus that is chirping. Now her attention diverts and she was able to talk to her friends, and she lost awareness of chirping although it was still there.

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2 years ago