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3 years ago

Fatty acids are activated to acyl-CoAs and the acyl group is further transferred to carnitine because:

Biology

1 answer:

Sunny_sXe [5.5K]3 years ago

6 0

Answer:

The correct answer is a acyl-carnitine readily cross the mitochondrial inner membrane but the acyl CoA do not.

Explanation:

Fatty acids are activated to form fatty acyl CoA by the help of ATP and CoA SH.But the so formed Acyl CoA cannot cross or pass the inner mitochondrial membrane to enter the mitochondrial matrix to initiate beta oxidation of fatty acid.

To overcome this problem fatty acyl CoA is converted to acyl carnitine and the so formed acyl carnitine readily crosses the inner mitochondrial membrane and enters the mitochondrial matrix.

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All of the following are ways that neutrophils can directly or indirectly kill cells except __________.

Rudik [331]

Answer:

MACs, or membrane attack complexes, are used in the complement system.

Explanation:

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3 years ago

What did Hutton conclude about the formation of granite rock and where did granite rock originate?

Travka [436]

Answer:

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3 years ago

Which of the following is NOT an accurate description of protein synthesis and folding?

julia-pushkina [17]

Answer:

OPTION b. "The 3D shape of a protein is determined largely by the ribosome forming the protein" is NOT an accurate description of protein synthesis and folding.

Explanation:

a. Many copies of a protein can be synthesized simultaneously from the same mRNA. TRUE. As a ribosome moves along the mRNA chain synthesizing a new protein, another ribosome might follow it, synthesizing another protein from the same mRNA chain. And so on. So, at the same time, many ribosomes might be attached to the mRNA, synthesizing many copies of the protein, but at different development levels. The mRNA chain together with many ribosomes is called a polyribosome.

b. The 3D shape of a protein is determined largely by the ribosome forming the protein. FALSE. What determined the 3D structure of the protein is the amino acid sequence of that particular polypeptide. Each amino-acid has different properties (hydrophobic, hydrophilic, positively charged, negatively charged) and they interact with each other by different bonds that depend on those poperties. So the amino acids composing the proteins and their interaction, is what models the structure of the protein.

c. The entire chain of amino acid exits the ribosome before it begins folding into its 3D shape. TRUE. When the ribosome reaches the end codon, the elongation process has finished, and the new protein leaves the ribosome and is translocated to the RER lumen where it is going to get folded.

d. The first encoded amino acid in every protein is methionine. TRUE. Almost always, the first amino acid located by the tRNA is the methionine, codified by the initiation codon AUG. This amino acid is frequently eliminated at the end of the process.

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3 years ago

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Feliz [49]

Answer:

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Explanation:

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3 years ago

Which of the following is a sustainable practice?

Gnoma [55]

Answer:

D. Using only geothermal energy is a sustainable practice.

Explanation:

Geothermal energy is heat derived within the sub-surface of the earth.

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3 years ago