Describe The Structure And Function Of The Nucleus And Mitochondria
I. Describe the structure and function of the nucleus and mitochondria.
The mitochondria is a semi-autonomous organelle which reproduces by bynary fission and has its own DNA. Its main function is to produce the energy intermediate ATP, through ATP synthase. Mitochondria could be considered a cell inside a cell. It has its own membranes (inner and outer membranes), its ribosomes (to produce the proteins encoded in its DNA), a matrix -- where aerobic respiration occurs. The invaginations of the inner membrane, called cristae, greatly increase the surface of the matrix and thereby increase the amount of ATP that can be made. Another important structure of the mitochondira is ATP synthase, an enzyme in the cristae which allows oxidative phosphorylation to occur1. …show more content…
The cell nucleus is composed of a nuclear matrix, a nucleolus, a nuclear envolope, nuclear pores, chromatin and nucleoplasm. The main function of the nucleus is to preserve, use, replicate and transmit the genetic material1.
The nuclear matrix is a network of fibers inside the cell nucleus that gives the nuclues its structure; it is therefore analogous to the cytoskeleton.
The nucleolus is the portion of the nucleus in charge of producing and assemblying ribosomes.
The nuclear pore and the nuclear envelope are the structures that intermediate the exchanges between the nucleus and the cytoplasm.The nuclear envelope is a phospholipid bilayer membrane around the nucleus, whereas nuclear pores are channels in the nuclear envelope in which the exchanges mentioned occur.
Chromatin is a biochemical term that refers to union between DNA and protein responsible for carrying the cellular genetic material. Chromosomes, consequently, are made out of chromatin.
Finally, nucleoplasm refers to the complete set of materials found inside the nuclear membrane, it is analogous to the
The mitochondria is a semi-autonomous organelle which reproduces by bynary fission and has its own DNA. Its main function is to produce the energy intermediate ATP, through ATP synthase. Mitochondria could be considered a cell inside a cell. It has its own membranes (inner and outer membranes), its ribosomes (to produce the proteins encoded in its DNA), a matrix -- where aerobic respiration occurs. The invaginations of the inner membrane, called cristae, greatly increase the surface of the matrix and thereby increase the amount of ATP that can be made. Another important structure of the mitochondira is ATP synthase, an enzyme in the cristae which allows oxidative phosphorylation to occur1. …show more content…
The cell nucleus is composed of a nuclear matrix, a nucleolus, a nuclear envolope, nuclear pores, chromatin and nucleoplasm. The main function of the nucleus is to preserve, use, replicate and transmit the genetic material1.
The nuclear matrix is a network of fibers inside the cell nucleus that gives the nuclues its structure; it is therefore analogous to the cytoskeleton.
The nucleolus is the portion of the nucleus in charge of producing and assemblying ribosomes.
The nuclear pore and the nuclear envelope are the structures that intermediate the exchanges between the nucleus and the cytoplasm.The nuclear envelope is a phospholipid bilayer membrane around the nucleus, whereas nuclear pores are channels in the nuclear envelope in which the exchanges mentioned occur.
Chromatin is a biochemical term that refers to union between DNA and protein responsible for carrying the cellular genetic material. Chromosomes, consequently, are made out of chromatin.
Finally, nucleoplasm refers to the complete set of materials found inside the nuclear membrane, it is analogous to the