Essay on Cells and their parts

Without the cells there will be no life. A cell is the the building block of the body. There 2 different types of cells there are animal cell and plants cells. Eukaryote is any cell that has a cell membrane bound. It also contains organelles.

According to Mattias Schleiden and Theodor Schwann the cell is the basic unit of life(Cell Theory- OI). Two common types of cells are the plant and animal cells. Although both kinds of cells share many similar, abundant structures, they also have varying descrepancies from cell to cell. Without a doubt, the nucleus is the most important organelle in the plant cell, even though, the lysosome is the most important structure in the animal cell.

My analogy from a cell is to a city. A cell has a cell membrane and in a city the city border acts as the cell membrane. The city wall in a cell acts like a cell wall. The cytoplasm can be a lawn in a city. Highways or road systems act like the endoplasmic reticulum in a city. The ribosomes in a cell organelle can be considered lumber or brick yard in a city. In a city post offices and UPS act as the golgi bodies. Solar energy plants are considered chloroplast. A city hall fence with a security guard can be considered as the nuclear membrane. Energy plants in cities can be considered the mitochondria. In cell organelles there is the nucleus and in a city the nucleus would

* Cells allow things to go in and out of the organism (allows diffusion to happen so good things go in and bad things go out)

Cells: Biology. a usually microscopic structure containing nuclear and cytoplasmic material enclosed by a semipermeable membrane and, in plants, a cell wall; the basic structural unit of all organisms

Endoplasmic reticulum (ER) – Endoplasmic reticulum is a branching network that fills the cell interior. There two types of ER: Smooth endoplasmic reticulum (SER) – Synthesis of lipid, glycogen and steroids (e.g. cholesterol and testosterone).

Cell membrane is the barrier that separates the inner environment of the cell from the outer environment. The membrane is selectively permeable.

They are very important in the synthesis and packaging of proteins. Some of those proteins might be used in the cell and some are sent out. The ribosomes are attached to the membrane of the ER. As the ribosomes builds the amino acid chain, the chain is pushed into the ER. When the protein is complete, the rough ER pinches off a vesicle. That vesicle, a small membrane bubble, can move to the cell membrane or the Golgi apparatus

Breaking down an organism leads scientists to identify cells. A group of cells create tissues, tissues combined are organs, and organs and their functions make up systems. Basically, cells make up living organisms. There are 2 kinds of cells: Prokaryotic and Eukaryotic. Within a prokaryotic, it doesn’t contain a DNA bounded nucleus; however, a eukaryotic cell does. Though the prokaryotic cell differs from a eukaryotic cell, they share a cell membrane. The cell membrane is composed of a phospholipid bilayer and proteins, which makes it selectively permeable. It is located outside of the cytoplasm and controls the movement of substances in and out of the cell. Its basic function is to protect the cell from its surroundings by selecting what can enter and exit the cell.

Cell Membrane: Cell boundary that controls what enters and leaves the cell. The cell membrane at Bryant-Denny Stadium is security.The cell membrane at Bryant-Denny Stadium is security because it stops whatever comes and and controls what comes in.They are similar because they do the same thing letting things in and letting things out.

A cell is the rigid outer covering of a typical plant cell, composed mainly of cellulose and lying outside the cell membrane. The cell wall helps the plant cell grow strong and the walls for the Westminster Mall help the building be tall and hold everything inside in place. It also only allows water and protein inside the cell and the only difference in that is that the mall allows people inside. Cell walls keep what’s inside protected, the doors that surround the mall make it vulnerable but the are important to the function of the mall as well as the cell.

The human body is an extremely complex system that even us humans still do not understand how everything works inside of it. Cells may be one of the toughest systems considering their microscopic size and peculiar ways of life. Looking deep into the way cells interact with one another and their life’s cycle a better look at how important cells really are comes to our eyes.

Cytoplasm- The cytoplasm is Jelly-like substance that makes up the main part of the cell and holds all the cell parts, this is also where the life functions of the bacterium take place.

Chromosome- Chromosomes are the microscopic structure within cells that carries the molecule deoxyribonucleic acid. DNA is the hereditary material that influences the development and characteristics of each organism. In bacteria and bacteria-like organisms called archaebacteria, chromosomes are simple circles of DNA that float around in the cell. In more complex cells, or Eukaryotes, chromosomes are stored within a well developed and defined nucleus. In eukaryotic cells, chromosomes are highly complex structures in which the shape of the DNA molecules is linear, rather than circular. Chromosomes consist chiefly of proteins and DNA. Tiny chemical subunits called nucleotide bases form the structure of DNA. A sequence of these bases that are along a DNA strand will create a code for the production of a special protein also known as a gene. Genes occupy precise locations on the chromosome. Each cell contains enough DNA to form a thread extending about 2 m (about 7 ft). Proteins called histones play a key role in packaging DNA within chromosomes. Sections of

The cytoplasm is a semifluid in the plasma membrane. It is in all eukaryotic cells. In prokaryotes, this is where the chemical processes of the cell take place. In eukaryotic cells, this is where organelles perform their functions. Cellular respiration also takes place here. One of stages of cellular respiration is glycolysis. Glycolysis is when glucose breaks down to form two pyruvates and 4 ATP. Its net result of 2 ATP is important for another process called the Krebs Cycle. This process is important because it begins cellular respiration. The cytoplasm also gives the cell its shape; without it, the cell would be “deflated” and substances would not be able to move throughout the cell. Organelles would have difficulty functioning too. It has been misunderstood that organelles float freely in the cytoplasm even