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Leya [2.2K]
4 years ago
15

Why are phosphorylation and dephosphorylation reactions commonly used?

Biology
1 answer:
laiz [17]4 years ago
4 0
To regulate signal transduction pathways? These molecules can directly convert extracellular signals into intracellular signals. .
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What is the function of the mini-valves in lymph capillaries?
Naya [18.7K]

 They increase the permeability of the lymph capillaries. Interstitial fluid enters the lymphatic vessels through the mini valves (which are overlaps of endothelial cells from multiple lymph capillaries). The valves also prevent the backflow of the lymph from the vessels back to the tissues.






7 0
3 years ago
________ is (are. not important as a stimulus in the gastric phase of gastric secretion.
Anon25 [30]
Carbohydrates are not important as a stimulus in the gastric phase of gastric secretion, whereas distension, peptides, and low acidity are.
3 0
4 years ago
Demonstrate through chemical modeling what happens to the protein structure (keratin) of curly hair after a chemical relaxer and
NeX [460]

Answer:

Denaturation occurs.

Explanation:

When a chemical relaxer and heat applied to a curly hair, the protein present inside your hair get denature. Due to this denaturation of protein in the hair, the hair are soft and flexible which can be converted into any direction and different styles can be done. If chemical perm or relaxer is applied to straight hairs, it also denature the protein and make the hair curly.

8 0
3 years ago
There are too manh pottasium ions inside a cell.as a result, the cell membrane expands and bursts. which problem was the cell mo
rosijanka [135]

The problem which led to the bursting of the cell is osmosis. This is specifically due to endosmosis which occurs because the cell failed to maintain its internal environment and thus expands and bursts.

Potassium ions are essential for cellular metabolism. Potassium ions are necessary for regulation of membrane potential and polarization and depolarization of the cell membrane.  If a cell has too much potassium ions, the inside of the cell becomes hypertonic, with respect to its surrounding. This destabilizes the internal environment and leads to water entering the cell(endosmosis). As endosmosis occurs the cell starts to expand due to excessive water. This leads to expansion and tears and cracks in the cell. The further expansion of the cell leads to the bursting of the cell or lysis of the cell.

Learn more about osmosis here-

brainly.com/question/21395644

#SPJ4

5 0
2 years ago
Which organ in the digestive system absorbs the most water from food quiziz
beks73 [17]

Answer:

The small intestine

Explanation:

The small intestine absorbs most digested food molecules, as well as water and minerals, and passes them on to other parts of the body for storage or further chemical change.

7 0
2 years ago
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