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yarga [219]
3 years ago
7

Which of the following allosterically activates mammalian isocitrate dehydrogenase?a. ADPb. NADHc. ATPd. MalateCitrate

Chemistry
1 answer:
Bogdan [553]3 years ago
5 0

Answer:

a. ADP

Explanation:

Isocitrate dehydrogenase is an enzyme in citric acid cycle that occurs in mitochondrial matrix.

It catalyzes conversion of the isocitrate to the alpha-ketoglutarate and Carbon dioxide which occurs in a two step process.

<u>IDH is regulated allosterically by the ADP positively in the mammals and inhibited by ATP, NADH.</u>  

The enzyme, IDH will not catalyze the reaction unless there are low levels of ADP.

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prisoha [69]

Answer:

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Water freezes at 0∘C and CO freezes at −205∘C. Which type of intermolecular force accounts for this difference in freezing point
Assoli18 [71]

Explanation:

The dipoles in CO are in opposite directions so they cancel each other out, although CO₂ has polar bonds, it is a nonpolar molecule. Therefore, the only intermolecular forces are London dispersion forces. Water (H2O) has hydrogen bond present which is a polar bond which has a high intermolecular force.

Water which has high intermolecular force will require more energy that is a higher temperature to overcome these attractions and are pulled together tightly to form a solid at higher temperatures, so their freezing point is higher.

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The Hawaiian islands formed as a result of a hot spot.<br><br> A.)True <br><br> B.)False
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8 0
3 years ago
Read 2 more answers
Given 16.2 grams of substance Y, if the substance absorbs 2722 joules of energy and the specific heat of the substance is 9.22 J
snow_tiger [21]
Since the substance absorbs heat, it is expected that the temperature will rise. The formula for the internal energy of a substance is given by the equation:

ΔU = mCpΔT

where:

ΔU = internal energy
m = mass of substance
Cp = specific heat capacity of substance
ΔT = change in temperature

ΔU = 2722 Joules = 16.2 grams (9.22 J/g-°C) (Tf - 26°C)

This gives a final temperature of Tf = 44.22 °C
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