CELL STRUCTURE AND FUNCTION
All living things are made of the same basic building blocks, cells. A human is made of 65 trillion cells. Cells are everywhere, on you skin, in your blood, and even on your tongue. In fact, your blood is clear but red blood cells are what make your blood red. Most living things are made up of many cells but some are made of only one cell, like amebas, paramecium, fungi, protists, monerans, and bacteria.
There are two basic types of cells, animal cells and plant cells. They have some common parts found in both and other parts that are unique to each. A cell membrane is found in both plant and animal cells. It is the structure that surrounds the cell and protects it. Plant cells have a cell wall, a rigid structure surrounding the cell membrane. Animal cells do not have a cell wall. Cytoplasm is the thick, jelly-like substance that makes up most of the cell. Vacuoles are fluid filled sacs in the cell. The vacuoles contain stored water or food that will be used by the cell. Cells also contain other “small organs” called organelles that carryout various cell functions. And then there is the control center of the cell, the nucleus, surrounded by a protective outer covering call the nuclear membrane. The nucleus contains the DNA, or chromosomes, that carries all the instructions on how a cell will function, live, and reproduce.
Every cell needs to energy to live and reproduce. Plant and animal cells obtain energy in different ways. Animals can not make their own food. They obtain energy by taking in food, water, and oxygen and converting it to sugar. Sugar is the only food a cell can eat. Plant cells can make their own food from water and sunlight. This process is called photosynthesis. Both plant and animal cells use energy from the food they obtain to reproduce.
All living things produce more living things. Cell reproduction is called mitosis. Mitosis is the process of a single cell dividing in two and then two more and so on. In mitosis, the pairs of chromosomes in the nucleus of the parent cell divide into two daughter cells. There are four phases of mitosis. In the first phase, the chromosomes are in a tangle and the nuclear membrane dissolves, or breaks apart. In the second phase, special fibers line up the chromosomal pairs. In the third phase, the fibers pull the pairs apart to opposite ends of the nucleus. In the final phase, the parent cell splits in two, creating two completely new daughter cells exactly like the parent cell. The two daughter cells will grow and eventually the process of mitosis will start again in each one. This is how all living things grow and continue.
In closing, it is important to remember that all living things are made up of cells. Some have only one cell while others have very complicated systems of many cells working together. Second, plant and animal cells take in food, water, and oxygen in very different ways, but both need these substances to make the energy needed to live, grow, and reproduce. Finally, every cell passes on their DNA to future generations through the process of mitosis. The DNA, in both plant and animal cells, contains all the instructions needed for cell to grow and function.
Другие работы по теме:
Biology Test Cells Essay Research Paper My
Biology Test: Cells Essay, Research Paper My brother was studying for his biology test. The next morning he was telling me about the dream he had. He said he traveled through a cell. I started to call him insane. My brother have an educational dream? I thought to myself, impossible.
Why Cells Are Small Essay Research Paper
Cells are the basic structural and functional units of life. As life on earth has evolved into organisms of varying complexities, two basic laws of nature have dictated why cells have remained so small.
Cellphones At School Essay Research Paper Cell
Cellphones? At School? Essay, Research Paper Cell phones should be banned from rural schools. There is no reason for them in rural schools, they are a distraction, and finally they could aid in violent
SickleCell Anemia Essay Research Paper SickleCell Anemia
Sickle-Cell Anemia Essay, Research Paper Sickle-Cell Anemia is an inherited blood disorder that affects millions of people around the world. It is particularly common among people whose ancestors come from sub-Sahara Africa and Spanish speaking regions. Approximately 2 million Americans carry the sickle cell trait.
Sickle Cell Anemia Essay Research Paper Hemoglobin
Sickle Cell Anemia Essay, Research Paper Hemoglobin, an oxygen carrying protein in blood, is sometime altered in people causing interruptions in the circulation of blood. This is known as Sickle-Cell
Lab Report Of The Cells Essay Research
Paper Introduction: The Cell, the fundamental structural unit of all living organisms. Some cells are complete organisms, such as the unicellular bacteria and protozoa, others, such as nerve, liver, and muscle cells, are specialized components of multicellular organisms. In another words, without cells we wouldn t be able to live or function correctly.
Sickle Cell Anemia Essay Research Paper Sickle
Sickle Cell Anemia Essay, Research Paper Sickle Cell Anemia Sickle Cell Anemia is a genetic disease that affects all kinds of people and can start before a person is even born. This paper will talk about
Sickle Cell Essay Research Paper What is
Sickle Cell Essay, Research Paper What is sickle cell anemia? Sickle cell anemia is an inherited disease of red blood cells. Normally red blood cells contain a protein called hemoglobin A, which carries oxygen to all the organs in the body. With sickle cell anemia, however, the body makes a different kind of protein, called hemoglobin S.
Cells Essay Research Paper CellsCells are some
Cells Essay, Research Paper Cells Cells are some of the smallest organisms around. All living things consist of cells, and yet they are invisible to the naked eye. How and why are they so small? Well, cells are the basic structural and functional units of life. As life on earth has evolved into organisms of different species and living things, two basic laws of nature have dictated why cells have remained so small.
Mitochondria S Effect On Aging And Disease
Essay, Research Paper Mitochondria are the powerhouse of the cell. Their sole responsibility is to provide energy for the cell. They do this by synthesizing a molecule known as ATP, which the cell uses as energy. Mitochondria are different from the rest of the cell organelles because they contain their own DNA outside the nucleus.
Cell Theory Essay Research Paper History of
Cell Theory Essay, Research Paper History of the Cell Theory: Cells, the make-up of all living things. Some cell are complete organisms, such as unicellular bacteria and protozoa. Other types of cells are called multicellular, such as nerve cells and muscle cells. Withen the cell is genetic material, Deoxyribonucleic Acid (DNA) containing coded instructions for the behavior and reproduction of the cell.
Cooperate W Your Cholesterol Essay Research Paper
Cooperate with your Cholesterol Cholesterol is an important part of cell membranes and is vital to the structure and function of all cells in your body. However, cholesterol is a pre-dominant substance in atherosclerotic plaque, which may develop in arteries and impede the flow of blood. Cholesterol is not the only lipid circulating in your blood stream.
Fuctions And Roles Of Protiens Carbohydr Essay
, Research Paper In this assesment the student will identify the chareracteristics and roles of carbohydrates, proteins, lipids, and nucleic acids in a living system. Write a 4 paragraph report describing the atoms in the compound building blocks, types, structure, and function of each. The student must also describe what they would do if they were given a jar with an unknown substance to find out wether or not it contained any of the substances listed above.
Cell Mitosis Essay Research Paper The life
Cell Mitosis Essay, Research Paper The life Process of a cell In my report you will learn about the life process of a cell based on the two main functions, metabolism and mitosis. You will learn about the four stages of metabolism: ingestion, digestion, respiration, and excretion, and how the cell completes them.
Cells Essay Research Paper CellsCells are the
Cells Essay, Research Paper Cells Cells are the basic unit of all life. Even though they are the smallest unit of life they are highly complex. Each cell has enough parts to it to
Mitosis Essay Research Paper MITOSISMitosis is the
Mitosis Essay, Research Paper MITOSIS Mitosis is the process of nuclear division in a living cell by which the chromosomes are exactly replicated, the two parts being separated are given to the daughter nuclei. In this process the two daughter cells receive chromosomes that are alike in composition and equal in the number of chromosomes as the parent cell.
Cell Reproduction Essay Research Paper Bio bugs
Cell Reproduction Essay, Research Paper Bio bugs The bio bugs were a great example of cell reproduction and heredity. In this essay I will discuss all the concepts of cell reproduction and heredity as they apply to the bio bugs.
Cells Essay Research Paper NucleusCell WallCell Membrane
Cells Essay, Research Paper Nucleus Cell Wall Cell Membrane Ribosome Mitochondria Vacuoles Nucleolus Endoplasmic Reticulm Lysosomes 5. Have the “cell membrane people” cut the large piece of plastic wrap in half and place each
Cloning Essay Research Paper In 1938 a
Cloning Essay, Research Paper In 1938, a German scientist, Hans Spemann theorized that organisms could be reproduced. His belief was that by transplanting the central element of one animal’s cell into the egg of another animal, the animal supplying the cell could be reproduced or “cloned.” Dr. Spemann believed that the central element or “nucleus” of a cell contained the genetic blueprint for the structure of an organism.
Cellular Life Essay Research Paper In this
Cellular Life Essay, Research Paper In this paper I will show my knowledge of many different topics of Cellular Life. I will explain the theory of biogenesis, cell theory, the history of both and how they tie in together. I will also state the scientific method and why it is important to science.
Biology Of Cancer Essay Research Paper Cells
Biology Of Cancer Essay, Research Paper Cells inside of our body are under strict genetic control. If the genes controlling our cells become mutated, the cells can become disorganized by losing their function and dividing abnormally at less restraint than their neighboring normal cells. This activity causes the cells to fail to fully mature.Within our cells, we have regulatory proteins that perforn such functions as correcting damaged genes.
Cell Phones Essay Research Paper As part
Cell Phones Essay, Research Paper As part of school policy, cell phones are not permitted on school grounds. This rule must be abolished. Students who are in after school activities need cell phones to contact parents.
Cell Membrane Electron Transport Chain Biochemical
Pathway Essay, Research Paper 1. The cell membrane structure is vital to the life of the cell. The cell membrane is shaped as having a phosphate head at the very outer surface, and two fatty acid tails hanging from it. The membrane is double, so at the tip of the fatty acid tails, there are two more fatty acid tails attached to another phosphate head.
Animal Cell Essay Research Paper Animal CellThe
Animal Cell Essay, Research Paper Animal CellThe model cell that you are looking at is an animal cell. The model is labeled with all of the typical organelles within a cell membrane. The following words are parts of the cell structure and the different jobs each one performs:Cell Membrane- phospholipid-protein bilayer; separates cell content from the environment.
Cell Theroy Essay Research Paper The cell
Cell Theroy Essay, Research Paper The cell theroy is made up of three main ideas: 1. All organisms are composed of one or more cells. An organism may be a single cell, such as the organisms Van Leewenhoek saw in water. Others, like most of the plants and animals with which you are most familiar, are multicellular, or made up of cells.
The Cell Essay Research Paper The CellWhat
The Cell Essay, Research Paper The Cell What do you get when you cross The Silence of the Lambs with A Nightmare on Elm Street? A psychological thriller movie that is full of the most surreal images. This film, The Cell has special effects that reminded me of The Matrix.
Cell Nulceus Essay Research Paper The Discovery
Cell Nulceus Essay, Research Paper The Discovery of the Cell Nucleus The cell nucleus was discovered in 1828. At this time no one really understood what it did but eventually it was found to be the control center for the cell and it organelles. The cell was discovered by a Robert Brown, a botanist. Robert Brown invented his own microscope with a crude system of lenses.
Cell Structure Definitions Essay Research Paper DefinitionsCell
Cell Structure Definitions Essay, Research Paper Definitions: Cell Wall A structure made of cellulose that is, in the plant, responsible for many tasks. Firstly, it maintains the shape of the cell, and secondly it protects the cell from external forces. It also serves as a connector between the cell in question and its neighboring cells.
Plant Cell Essay Research Paper I am
Plant Cell Essay, Research Paper I am your usual plant cell. There are trillions of my kind on all plants, grass, and trees. My breed ranges from ten to a hundred micrometers. I am approximately twenty micrometers since I dwell in grass. My organelles stretch out to one to ten micrometers. If you are asking what I really do and how I live, I am going to answer them in this paper.
The Plant Cell Essay Research Paper Cell
The Plant Cell Essay, Research Paper Cell Wall Size: Around 1? Basic Function: * Hold the shape of the cell. * Strengthen the cell. Covering the cell membrane of the plant cell, there is the cell wall. The cell wall is composed of two
Gene Mutation Essay Research Paper Define Gene
Gene Mutation Essay, Research Paper Define Gene Mutation A change in the base sequence of a gene Outline the difference between an insertion and a deletion Explain the consequence of a base substitution mutation in relation to the