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Harlamova29_29 [7]
3 years ago
14

In bacterial cell walls a. peptides form crosslinks between polysaccharides b. polysaccharides form nonspecific mixtures with pr

oteins c. oligosaccharides form crosslinks between proteins d. polysaccharides are hydrogen bonded together
Biology
1 answer:
vitfil [10]3 years ago
4 0

Answer:

the correct option is A "peptides form crosslinks between polysaccharides"

Explanation:

The bacterial wall of bacteria is made up of a complex peptide that is called peptidoglycan, which in turn is intertwined with polysaccharides and many more structures such as protein, this wall is confined or has the function of being able to protect the osmotic balance of the bacteria so that it does not go into failure and does not lose vitality. If the wall breaks, the bacteria goes into osmotic shock and dies, which is why this was a great discovery, because although it is very difficult to pass through antibiotics or antiseptics, once the porification of this wall is generated, the osmotic balance is lost and bactericidal power is acquired.

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kompoz [17]

Answer:

More heat in the atmosphere, less absorption of greenhouse gases on Earth, and solar and volcanic activity may contribute to an increase in global average surface temperatures.

Explanation:

8 0
3 years ago
What is responsible for most of the atmospheric circulation?
Ivahew [28]

The answer is A. The main driver of the convention in atmospheric circulation is the suns energy. When the sun heats the earth, the atmosphere directly below the sun gets heated more and faster compared to other regions causing an area of low pressure. This hot air mass rises and is replaced by cooler air masses (from high-pressure regions) from neighboring regions. This, essentially, causes winds and air currents.






4 0
3 years ago
Gastrin, histamine, endorphins, serotonin, cholecystokinin, and somatostatin are hormones or paracrines that are released direct
garik1379 [7]

Answer:

The correct answer is option b, that is, enteroendocrine cells.

Explanation:

The specialized cells of the pancreas and the gastrointestinal tract exhibiting endocrine function are termed as enteroendocrine cells. These cells generate gastrointestinal peptides or hormones in response to a distinct kind of stimuli and discharge them into the bloodstream for the systemic effect. These are the most varied endocrine cells found within the body.  

The intestinal enteroendocrine cells produce somatostatin, cholecystokinin, motilin, enteroglucagon, and neurotensin hormones. The G cells present within the intestine produce gastrin. In the gastric glands, the gastric enteroendocrine cells are present, which produce histamine, and others like cholecystokinin, alpha and gamma-endorphin, somatostatin, and others.  

In the islets of Langerhans, the pancreatic enteroendocrine cells are present, which produce hormones like ghrelin, amylin, somatostatin, and pancreatic polypeptide.  

4 0
3 years ago
Which of the following is an example of a renewable resource?
nordsb [41]

Answer:

crops is a renewable resources, coal, natural gas and oil are not renewable as they will not last forever.

8 0
2 years ago
What kind of habitat did tiktaalik live in?
NARA [144]

Tiktaalik roseae was discovered in sediments on Ellesmere Island in Nunavut, Artic Canada (Ahlberg and Clack, 2006). The sediments it was found in are from what is known as the Fram Formation, which is thought to be deposits of lowland streams (Murphy, 2005). hope it helps

6 0
3 years ago
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