Cell nucleus

Cell biology 1. A cell is eukaryotic because  Is generally larger and much more sophisticated than prokaryotic cells due to the presence of a complex series of membranes that divide a typical eukaryotic cell into compartment.  Eukaryotic cell has an organized nucleus with a nuclear envelop.  Has membrane bound organelles  Contain linear DNA molecule that are larger than the (circular) DNA molecules in prokaryotic cells and, in association with proteins, form structures called chromosomes.…

division of cell. In cell division process the cell is obtained by the already existed cell or pre existed cell stated by Ruolf Virchow in 1855. The process divison of cells is uasuall same in all of the living organisms. Division of cells is furtherly divided into two types :- 1) Mitosis 2) Meiosis Basic Difference Mitosis and Meiosis:- Mitosis and Meiosis both are originally types of division of cells . But there are many conflicts and differences in both of divisions. As Mitosis is a cell…

Discussed in Chapter 17 is the cell cycle. The cell cycle is when the cell is replicated and divided. The cell cycle functions comparable to set of sequences in a control system. This control system behaves like switches with many backup processes and qualities allowing the cell cycle to operate effectively and efficiently. During the cell cycle, four stages occur known as G1 phase, S phase, G2 phase, & M phase. The G1 phase is where the cell is assigned to enter the process for chromosome…

efficiently change the internal organization of the cell, and capture organelles through the cytosol. Intermediate filaments are made up of the protein keratin. Their primary function is to strengthen the internal structure of a cell. Microfilaments are the smallest among the three cytoskeletal filaments. They consist of protein actin. Microfilaments are dynamic structures that can rapidly disassemble or assemble themselves, and thus microfilaments enable the cell to move efficiently. Cilia and…

somatic cell nuclear transfer SCNT is a laboratory procedure where the purpose is to copy, reproduce, a live creature or CLONE it. The nucleus of a somatic cell, any cell of a living organism other than the reproductive cell, the cytoplasmic factors influence the nucleus to turn into a zygote. As a result, the egg undergoes a blastocystic stage and it creates the embryonic stem cells. The process takes two cells, one is the donor of the nucleus and the second the receiver of this nucleus. The…

Nucleus The Nucleus is an example of a command centre found inside a eukaryotic cell; it’s usually the most prominent organelle, yet it occupies only 10% of the total volume of the cell. If this cell did not have a Nucleus, it would be defined as a prokaryote cell, however if the Nucleus was damaged and not repaired, the cell would simply die. The cell nucleus is enclosed within a double membrane (contains an Inner and Outer Nuclear Membrane) called the Nuclear Envelope, which separates the…

Assignment 3.05 DNA DNA, deoxyribonucleic acid, is the stuff in humans and almost all other organisms. About every cell in you and everyone else's body has the same DNA. DNA is usually located in the cell nucleus (nuclear DNA),however small amounts of DNA can be found in the mitochondria (mitochondrial DNA or mtDNA). The DNA has information stored as a code created by four chemical bases: adenine (A), cytosine (C), guanine (G), and thymine (T). Each base is connected to a sugar molecule and…

In order to keep living organisms healthy cells have to go through many stages to replace damaged or worn out cells. One of the necessary steps is mitosis. Mitosis is the process of the body cell and nuclei dividing. This division is the cause of bodies growing and cells repairing. This division is a continuous process which there is four major steps; prophase, metaphase, anaphase, and telophase. Mitosis is comprised of prophase, metaphase, anaphase, and telophase. In prophase chromosomes…

Cells signals can be mainly described as chemical, prokaryotes have sensors capable of detecting nutrients which helps them find food these signals can either be long distance or short distance some of the short distance could be found in muscle cells and a long distance can be describe as the releasing of an egg in the ovaries. Cells have protein receptors which will bind to protein signaling molecules triggering a respond in the molecules. Different receptors are specific for different…

unit of life is the cell. All living things are composed of cells. Cells may only from through a process of division and replication of previously existing cells. Cells are microscopic; however their structure is complex. All types of cells possess a plasma membrane which separates its contents from its surroundings. . There are two types of cells: prokaryotic and eukaryotic. a. Prokaryotic cells are simpler than eukaryotic cells. Within prokaryotic cells are bacteria cells and archaea. All…