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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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What is the chemical formula for the compound ammonium phosphate? Use the list of polyatomic ions and the periodic table to help
Ostrovityanka [42]

Answer:

NH4)3PO4

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4 0
3 years ago
A sample of gaseous neon atoms at atmospheric pressure and 0 °c contains 2.69 * 1022 atoms per liter. the atomic radius of neon
omeli [17]

Explanation

Radius of neon atom : 69 pm = 69\times 10^{-12} m

Volume occupied by the one atom:\frac{4}{3}\pi r^3

=\frac{4}{3}\times 3.14\times(69\times 10^{-12} m)^3=1.37\times 10^{-30} m^3

given that 2.69\times 10^{22} atoms are present in 1L

1 L = 0.001 m^3

The volume occupied by the 2.69\times 10^{22} neon atoms

2.69\times 10^{22}\times 1.37\times 10^{-30} m^3=3.68\times 10^{-8} m^3

Fraction of volume occupied by the neon atom:

=\frac{3.68\times 10^{-8} m^3}{0.001 m^3}=3.68\times 10^{-11} m^3

3.68\times 10^{-11} m^3

The fraction of of volume occupied by the neon atom is very less than the 1 L which indicates the presence of large amount of empty space between the atoms of the gas.

3 0
3 years ago
At 40 mph, how long does it take to travel 64 miles
gogolik [260]
1.5 hours
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6 0
2 years ago
Make a good chain with arrows include these organisms white shark,bacteria,kelp,sun,sea urchin,otter
MakcuM [25]

Sun to kelp

kelp to sea urchin

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otter to shark

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8 0
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What is the name of the structures that help move substances across a tract surface?
dimaraw [331]

Answer:

cilia and flagella

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In prokaryotic species , cilia are present , and in eukaryotic species , flagella is present .

Cilia and flagella both have same function , i.e. , to enable the movement of the cell , along with the movement of some substance and direct the flow of these substance along the tracts.

Cilia and flagella are composed of basal bodies.

Hence , from the given statement of the question,

The correct term is cilia and flagella .

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