Cell

I included 8 organelles that are found in the cell. One of these organelles is the nucleus. The nucleus is a large membrane-enclosed structure that contains genetic material in the form of DNA and controls many of the cell’s activities. The job of the nucleus is to protect the DNA and the RNA from anything outside the nucleus. Another organelle is the ribosome. Ribosomes are small particle of RNA and protein found throughout the cytoplasm in all cells. The ribosome is responsible for making protein

Human cells from different parts of the body have many similarities and differences. During this lab, I had the option to examine prepared slides that contained different types of human tissue. I had the option to study skin cells, hair cells, muscles cells, uterus cells, bone cells and many more. I chose to study skin and uterus cells. The cells that I studied had many similarities. From the lab discussion, all cells we studied had a cell membrane with a nucleus that contained genetic information

Stem cells is a type of cell that can differentiate (alter, transform) and form different tissues in the body. This is a special capacity because the other cells can generally only be part of a specific tissue (for example skin cells can only constitute skin). Another special ability of stem cells is self-replication, which means that they can produce identical copies of themselves. Because of these two abilities, stem cells are the subject of intense research today, it could in future act as replacement

The cells are the most important thing in the body, because they are what keep us alive. They also are relatively similar to many other objects. For example, I came up with a cell being like the human body. They have many things alike some are pretty simple, but others are perplexing. The perplexing ones require more than one organ in the body. First the cell wall of a plant cell is our bones. The cell wall helps with the structure of the cell and our bones help with our structure too. Without these

Animal cells and their functions Cell Membrane The cell “surface” membrane is a semi-permeable membrane whose function is to control the exchange of substances between the cell and its environment. Semi-permeable means that only certain molecules are allowed to be transported in and out of the cell. The membrane is mainly made up of Lipid and protein. On the diagram, the Cell Membrane forms the “outer shell” of the animal cell, and can be seen as the bold line around it. Nucleus The Nucleus has a

two major groups that cells can be grouped into to. These are eukaryotic and prokaryotic cells. All eukaryotic cells contain a plasma membrane, as well as cytoplasm and organelles such as mitochondria, rough endoplasmic reticulum (ER), Golgi apparatus, smooth ER, ribosomes, a nucleus which is surrounded by a double membrane known as the nuclear envelope, and secretory vesicles. There are some eukaryotic cells which contain more organelles as well as theses. Some eukaryotic cells, specifically in plants

All eukaryotic cells have microtubules, which are hollow rods assembled from a globular protein called tubulin. Microtubules grow in length by adding tubulin dimers. Those dimers can also be disassembled, which would allow the tubulin to build microtubules elsewhere in the cell. The two opposite ends of of a microtubule are actually pretty unique. One end can can accumulate or release tubulin dimers at a much higher rate which allows it to grow or shrink during cellular activities (Campbell,

different microscopic cells that join to shape who they are. Cells are considered the basic building blocks of living things and have many parts, each with a different function(1). The nucleus within a cell is where all the genetic information is stored. Within the nucleus, there are twenty-three long threads of DNA known as chromosomes. Each chromosome contains heredity information to direct synthesis of proteins. Cells in humans and plants are known as eukaryotic and cells in bacteria are known

determined what type of cell(plant, animal, or bacterial) the mystery cell is. After first setting up the microscope correctly you can view the specimen at 40x power. At 40x power, key observations can be made to help place the cell in a group. If the cell contains a rigid shape and little movement, a hypothesis can be made that the cell is a plant cell as the rigid shape would be caused by a cell wall, only found within plant cells. In that case, you would stain the cell using iodine as it would

About Cells Cell, smallest unit of an organism that can function independently. All living organisms are made of cells, and it is generally held that nothing less than a cell can truly be said to be alive. Some microscopic organisms, such as bacteria and protozoa, are single cells whereas animals and plants are composed of many millions of cells assembled into tissues