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AfilCa [17]
3 years ago
13

If a chemist wants to do a presumptive test on an unknown substance for the presence of cocaine, which test reagent should they

use?
Medicine
1 answer:
marysya [2.9K]3 years ago
6 0
Marquis reagent is used as a simple spot-test to presumptively identify alkaloids as well as other compounds. It is composed of a mixture of formaldehyde and concentrated sulfuric acid, which is dripped onto the substance being tested.
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Cholecystokinin, which is produced in the small intestine, inhibits gastric secretions in the stomach. True or false?.
Sholpan [36]

The small intestine produces cholecystokinin, which stops the stomach from secreting gastric juices. The statement that follows is true.

Discussion about Cholecystokinin-

  • A peptide transmitter called cholecystokinin(CCK) is released into the blood after a meal and is largely made by enteroendocrine cells in the proximal small intestine. Circulating CCK stimulates pancreatic secretion and gallbladder contraction, controls stomach emptying and bowel movement, and promotes satiety via binding to particular cholecystokinin-1(CCK-1) receptors mostly on pancreas, stomach smooth muscle, and peripheral nerves.
  • The coordination of nutritional intake, digestion, and absorption is achieved via these effects. The main dietary components that increase cholecystokinin(CCK )release are ingested fat and protein.
  • CCK was first discovered to be a 33-amino-acid polypeptide. Yet, bigger and smaller versions of CCK were found in the brain, gut, and blood from its very discovery. A preprohormone undergoes posttranslational synthesis to yield all variants of CCK from a particular gene.

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8 0
2 years ago
Clostridium difficile is a gram-positive, endospore forming anaerobe. Is endotoxin part of its virulence factor toolkit?.
kifflom [539]
<h3> <u>yes</u></h3>

Endotoxin is a part of virulence factor toolkit in <em>Clostridium difficile.</em>

It produces several toxins.

<h3>What type of infection is most frequently brought on by <em>Clostridium difficile</em>?</h3>
  • Today, it is understood that <em>C difficile</em> is the most typical cause of nosocomial infectious diarrhea.
  • It is to blame for more than 90% of cases of antibiotic-associated pseudomembranous colitis, up to 25% of cases of antibiotic-associated diarrhea, and up to 75% of cases of antibiotic-associated colitis.
<h3>What three signs of <em>C. diff</em> are there?</h3>
  • a serious infection
  • 10 to 15 times per day, with diarrhea that is watery.
  • abdominal discomfort and cramps, which could be really bad.
  • quick heartbeat.
  • Dehydration.
  • Fever.
  • Nausea.
  • greater number of white blood cells.
  • renal failure
<h3>What results from untreated C. diff?</h3>
  • The<em> Clostridium difficile</em> infection can cause sepsis, an intestinal perforation, or even death if it is not treated or is not treated effectively.
  • Antibiotics such as vancomycin or metronidazole are frequently used to treat patients with severe Clostridium difficile infections.

To learn more about Clostridium difficile visit:

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3 0
2 years ago
Inflammation of the glomerulus
storchak [24]

Answer:

The answer is B: Glomerulonephritis.

Explanation:

The inflammation of the glomerules is known as Glomerulonephritis. The glomeruos are small physiological units of the kidneys responsible for eliminating excess liquids, electrolytes and wastes from the blood, to be later eliminated in the urine. It is a pathology that can be acute or chronic, the same as alone or be performed with other diseases.

8 0
4 years ago
Oh, no! You've been exposed to radiation, and a mutated hand has grown out of your stomach! What's the best course of treatment?
masha68 [24]

Answer:

4

Explanation:

Isn't this a fallout reference?

8 0
3 years ago
Read 2 more answers
Scientists are creating an artificial intelligence that screens _____ for lung cancer.
djverab [1.8K]

Answer:

lung cancer

Explanation:

4 0
4 years ago
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