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vazorg [7]
3 years ago
5

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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The population size of a species in a particular area can be determined by a technique known as mark and recapture. True or Fals
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3 years ago
Proteins, large complex molecules, are major building blocks of all living organisms. Discuss the following in relation to prote
Anastasy [175]

Answer:

Proteins, large complex molecules, are major building blocks of all living organisms. Discuss the following in relation to proteins.

(a) The chemical composition and levels of structure of proteins.

Proteins are chemically macromolecules formed by manomeric units called amino acids. The structural organization of proteins is as follows:  Primary, Secondary, Tertiary and Quaternary.

(b) The roles of DNA and RNA in protein synthesis

From DNA, ribosomal RNA is formed, a type of RNA present in ribosomes that is responsible for protein synthesis. Therefore, the role of DNA in protein synthesis is essential: without DNA, there are no proteins.

(c) The roles of proteins in membrane structure and transport of molecules across the membrane

Proteins can work by transporting ions in different ways.

Explanation:

(a) The chemical composition and levels of structure of proteins.

Proteins are chemically macromolecules formed by manomeric units called amino acids, these have in their structure a carboxyl group and amino group, attached to the same carbon. To be assimilated by the body, proteins must be degraded in the amino acids that make them up.

The amino acids are linked together by peptide bonds. In those bonds, the amino group of one amino acid reacts with the carboxyl group of the other.

The structural organization of proteins is as follows:

Primary: Sequence of the amino acids in the chain with peptide bonds.

Secondary: Spatial arrangement of the amino acids of a protein. They stabilize by means of hydrogen bonds. There are two types: the propeller a and the folded blade b.

Tertiary: Three-dimensional arrangement of the polypeptide chain, stabilized by forces of Waals.

Quaternary: Union of weak bonds of arias polypeptic chains that originate a protein complex.

(b) The roles of DNA and RNA in protein synthesis

RNA fulfills numerous functions, the most important being protein synthesis, in which it copies the genetic order contained in the DNA to use it as a standard in the manufacture of proteins and enzymes and various substances necessary for the cell and the organism. For this, it goes to the ribosomes, which operate as a kind of molecular protein factory, and it does so following the pattern that the DNA prints on it.

(c) The roles of proteins in membrane structure and transport of molecules across the membrane

The cells contain proteins that are embedded in the lipid bilayer of their plasma membranes. These proteins can work by transporting ions in different ways. Then, most of the water-soluble ions and molecules are unable to spontaneously cross the lipid bilayer of the membrane (which act as a barrier) and require the concurrence of special carrier proteins or protein channels. In this way the cell maintains concentrations of ions and small molecules different from those prevailing in the external environment.

7 0
3 years ago
Explain the difference between fire resistance and flame spread. describe the hazards firefighters should be aware of during the
Kaylis [27]

Fire resistance is where the amount of time that material has withstood a standard fire exposure whereas flame spread is the speed at which a flame spread along the surface of a specific material and is considered as the difference between fire resistance and flame spread.

Fire resistance is the resistance to fire that is for a particular specified time and is under circumstances of standard heat intensity. It will not structurally fail or else allow the transition of heat and also not permit the side away from the fire so as to become hotter than a temperature that is specified well.

Flame spread is described as the surface burning characteristics enhanced by building materials. It is the most tested property of the fire performance of a material.

Firefighters should be aware of the growth and spread of a fire as they face respiratory hazards in emergency situations which include oxygen deficiency,  temperature elevation, smoke as well as toxic atmospheres. This can also affect both the physical and mental effects of the firefighter and would be worse if proper respirator precautions are not followed.

This indicates that firefighters are regularly exposed to certain concentrations of hazardous materials that include carcinogenic products such as carbon monoxide, benzene, sulphur dioxide, hydrogen cyanide, aldehydes as well as particulates.

Learn to know more about fire resistance at

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4 0
1 year ago
Part two of can you help me
riadik2000 [5.3K]

Explanation:

all are man made for exact answer

3 0
3 years ago
What organisms are non-flowering plants closely related to ?
Sauron [17]

Answer of Q.1. is:

C] Ferns

While, Answer of Q.2 is ;

B] Mollusks

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3 years ago
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