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Elden [556K]
2 years ago
12

Which feature of a cell membrane determines whether molecules can cross the membrane?

Biology
1 answer:
aleksklad [387]2 years ago
3 0

Answer:

my guess is phospholipids

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Ask me the way my father goes to work.
uranmaximum [27]
The answer is C, hope this helps
3 0
3 years ago
A client is admitted to the hospital with a diagnosed bowel obstruction secondary to a recurrent diagnosed malignancy. The prima
Mrrafil [7]

Answer:

Remain with the client and be silent

Explanation:

Bowel obstruction can be explained or described as a situation whereby the intestines, i.e, both small and large intestines are blocked, and thereby, preventing the normal movement of food, liquid or stool in the intestines.

The blockage could result or occur due to tumor, foreign substance or digestive problem.

The Miller-Abbott tube is the tube that was invented or developed to treat the obstruction that is present in both the small and the large intestines. It is used by passing it through the stomach into the intestine.

In this case, the bowel obstruction is caused by recurrent malignancy, that is recurrent of formation of tumor.

The best thing the nurse should do, is to remain silent and with the client, until the client is ready for explanation on the process, and that he/she is in position and capable of inserting the tube.

7 0
3 years ago
Select the correct answers. Meningitis is the inflammation of the protective covering of the meninges. Which organs would be aff
Usimov [2.4K]

Answer:

Brain and spinal cord

Explanation:

Meningitis is the inflammation of the protective covering of the meninges, the three membranes covering the brain and spinal cord. Meningitis usually occurs from a viral infection, but may sometimes result from a bacterial or fungal infection, cancer or drug allergies.

Viral and bacterial meningitis may be contagious and can be transmitted through coughing and sneezing.

Symptoms of meningitis include:

  • headaches
  • fever
  • sensitivity to bright light
  • stiff neck
  • seizures
  • sleepiness
  • lethargy
  • nausea and vomiting
  • decreased appetite

Treatment is by vaccination, use of antibiotics and antifungal agents.

6 0
3 years ago
What membrane activities requires energy from atp hydrolysis?
NikAS [45]

Answer:

active transport, like Na + ions leaving the cell

Explanation:

The active transport requires an energy expenditure to transport the molecule from one side of the membrane to the other, but the active transport is the only one that can transport molecules against a concentration gradient, just as the diffusion facilitated the active transport is limited by the number of transport proteins present.

Two major categories of active, primary and secondary transport are of interest. The primary active transport uses energy (generally obtained from ATP hydrolysis), at the level of the same membrane protein producing a conformational change that results in the transport of a molecule through the protein.

The best known example is the Na + / K + pump. The Na + / K + pump performs a countertransport ("antyport") transports K + into the cell and Na + outside it, at the same time, spending on the ATP process.

The secondary active transport uses energy to establish a gradient across the cell membrane, and then uses that gradient to transport a molecule of interest against its concentration gradient.

8 0
3 years ago
In a drug study, the medication would be the
skelet666 [1.2K]
The medication would be the controlled variable, the factor that remains constant.
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