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nekit [7.7K]
2 years ago
14

What is responsible for initiating a signal transduction pathway?

Physics
1 answer:
Komok [63]2 years ago
8 0

Answer:

The attachment of a signal molecule to a plasma membrane receptor.

Explanation:

The attachment of a signal molecule to a plasma membrane receptor initiates a signal transduction pathway.

Once the target cell receives the signal molecule it converts the signal to a form that can bring about a specific cellular response. This often occurs in a series of steps called a signal transduction pathway. Signal molecules bind to receptor protein, in cell membranes, and generally cause a conformational change in the proteins. This change in conformation is transmitted to the cytoplasmic domain or part of the receptor molecule. The transformed molecule interacts with the information-relaying molecules in the cytoplasm. These molecules are small molecules present in the cytoplasm known as secondary messengers. Calcium ions and Cyclic AMP (cAMP) are examples. This further starts a series of chain reactions, which ultimately reaches the target gene and causes its expression or repression.

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Maksim231197 [3]

Answer:

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Explanation:

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3 years ago
Which answer choice?? I have trouble with this physics concept :/
Zepler [3.9K]

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3 years ago
A vat of nitrogen at its boiling point (-196 degrees C) absorbs 384000 J of heat. How much mass of nitrogen burns off? (Unit = k
masya89 [10]

Answer:

1.92 kg of nitrogen.

Explanation:

The following data were obtained from the question:

Heat absorbed (Q) = 384000 J

Note: Heat of vaporisation (ΔHv) of nitrogen = 5600 J/mol

Next, we shall determine the number of mole of nitrogen that absorbed 384000 J.

This is illustrated below:

Q = mol·ΔHv

384000 = mole of N2 x 5600

Divide both side by 5600

Mole of N2 = 384000/5600

Mole of N2 = 68.57 moles

Next, we shall convert 68.57 moles of nitrogen, N2 to grams.

This can be obtained as follow:

Molar mass of N2 = 2 x 14 = 28 g/mol.

Mole of N2 = 68.57 moles.

Mass of N2 =..?

Mole = mass /molar mass

68.57 = mass of N2 /28

Cross multiply

Mass of N2 = 68.57 x 28

Mass of N2 = 1919.96 g

Finally, we shall convert 1919.96 g to kilograms.

This can be achieved as shown below:

1000g = 1 kg

Therefore,

1919.96 g = 1919.96/1000 = 1.92 kg.

Therefore, 1.92 kg of nitrogen were burned off.

3 0
3 years ago
What is the formula for potassium iodide
musickatia [10]
Potassium iodide

Molar mass: 166.0028 g/mol

Formula: KI
3 0
3 years ago
Read 2 more answers
What happens to energy “lost” during an energy transformation? A. It turns into heat energy. B. It turns into kinetic energy. C.
Anettt [7]

Answer:

I think it turns into heat (thermal) energy if I'm right

4 0
3 years ago
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