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djverab [1.8K]
3 years ago
10

Under what circumstances does membrane transport always require energy?

Biology
1 answer:
kondor19780726 [428]3 years ago
8 0
It requires energy when a substance must travel against a concentration gradient through the membrane
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Free palmitate is activated to palmitoyl-CoA in the cytosol before it can be oxidized in the mitochondria. If palmitate and [14
Bingel [31]
<h2>Fatty acid oxidation </h2>

Explanation:

  • Activation of fatty acids (palmitate) occurs in the cytoplasm where fatty acids are activated to fatty acyl CoA, reaction catalysed by an enzyme called fatty acyl CoA synthetase
  • A specialized carnitine carrier system catalyze transportation of activated fatty acid from cytoplasm to matrix of mitochondria, where carnitine system consists of three proteins:
  • Carnitine acyl transferase I located in outer membrane of mitochondria catalyze transfer of carnitine to fatty acyl CoA and produce fatty acyl carnitine
  • Carnitine translocase facilitate passive diffusion of fatty acyl carnitine from inter membrane space to matrix located in inner membrane
  • Carnitine acyl transferase III located in inner mitochondrial membrane at matrix phase catalyze transfer of CoA to fatty acyl carnitine and regenerate fatty acyl CoA

Hence, the cytosolic and mitochondrial pools of CoA are thus kept separate, and no radioactive CoA from the cytosolic pool enters the mitochondria

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3 years ago
What is the product of acetyl and co-enzyme A?
Mariana [72]
I think its D not sure though
3 0
3 years ago
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1. Encontramos dos factores que influyen en los seres vivos como las bacterias y la cianoficeas. Es el llado factor: a. Biotico
Novay_Z [31]

Answer:

una. Biótico b. Abiótico

Explicación:

Dos factores que influyen mucho en los seres vivos, como las bacterias y las cianofitas, son los factores bióticos y abióticos. Los factores bióticos se refieren a factores vivos del medio ambiente, como animales, plantas, hongos, bacterias y protistas, mientras que los factores abióticos se refieren a factores no vivos como el agua, el suelo, el aire, la luz solar, la temperatura y los minerales. Estos factores tienen un gran efecto en la supervivencia de estos dos organismos.

4 0
3 years ago
Which plant part is part of the male reproductive organ in an angiosperm
Colt1911 [192]
I think the answer is the Anther.
7 0
4 years ago
Please help I'm stuck
Reptile [31]

Answer:

its a plant cell

Explanation:

5 0
3 years ago
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