Organelle Essays

  • Subcellular Organelles Essay

    1327 Words  | 6 Pages

    Explain in detail the subcellular organelles are functioning effectively? Cells are basic structural and functional unit of living organisms. They are either multicellular or unicellular. Arise from pre-existing cells. Cell function as tiny specific factor with individual part that work together. Then what makes is present inside the cell that makes the cell alive and in turn, keeping the organism going? It is definitely the organelles! What are organelles? Organelles are membrane-bound, specialized

  • Short Essay On Cell Organelles

    878 Words  | 4 Pages

    Cell Organelles The largest cell organelle is the nucleus. Two membranes known as the nuclear envelope surround the nucleus. The outer membrane of the nuclear envelope is continuous with the endoplasmic reticulum. The nucleus and nuclear envelope are separated by a fluid, which contains a number of nuclear pores that are able to let large molecules through. The nucleus contains almost all of the cell’s genetic material. The nucleus has a substructure called the nucleolus. Messenger RNA (mRNA) must

  • Plant And Animal Cell Similarities

    1084 Words  | 5 Pages

    structure of bacteria, archaea, protists, fungi, plants, and animals. They can be comprised into two different categories: the eukaryotic cells and the prokaryotic cells. Eukaryotic cells have membrane-bound organelles and a membrane-bound nucleus, while prokaryotic cells have no membrane-bound organelles and no membrane-bound nucleus. Cells can be quite fascinating, especially when one focuses on the similarities and differences of plants and animal cells, the structure and function of the cell membrane

  • Essay On Mitochondria

    1361 Words  | 6 Pages

    replication. All living cells are divided into two distinct categories, those which lack a membrane bound organelles and those that have membrane bound organelles. These are called prokaryotic cells and eukaryotic cells, respectively. “Organelle” is the word used for the specialized subunit that is within a cell which has a specific function. Mitochondria is one such membrane bound organelle. The word mitochondrion describes its size and shape and comes from the New Greek for “mitos”, which is the

  • Smear Lab Report

    1059 Words  | 5 Pages

    Different types of Cells contain different types of organelles which give each cell its specific functions. For example, plant cells have different structure from blood cells and bacteria. In fact, different types of stain are used in order to observe different cell organelles under a microscope. For example, safranine is a type of stain which may be used on an onion epidermis or in gram staining which may help us to observe cell structure and types. Moreover, some smears needs differential stains

  • Describe The Fluid Mosaic Structure Of Cell Membranes

    800 Words  | 4 Pages

    How do the membranes of cells and the organelles they contain control the movement of materials? According to the text, cells are the smallest and most basic unit of life. Cells are organized by the outer cell membrane that separates the watery interior of the cell from the outer environment. Energy is required in order for cells to sustain their functions. One way they may use energy is by conducting photosynthesis to produce chemical energy from sunlight. The membrane systems of cells manage

  • The Importance Of Eukaryotic Plasma Membrane

    1280 Words  | 6 Pages

    other substances out. Eukaryotic Plasma Membrane Eukaryotic cells are delimited by the cytoplasmic membrane and contain cytoplasm, ribosomes and DNA. They are also characterized by the presence of internal compartments delimited by the membrane, the organelles, that contain specific enzymes. Among these, there is the nucleus that contains most of the genetic material (DNA) of the cell. Here occur the DNA duplication and the first steps in decoding genetic information. In all eukaryotic cells, there are

  • Mitochondria Research Paper

    911 Words  | 4 Pages

    Essay 79: Mitochondria Mitochondria are organelles found exclusively in eukaryotic cells, meaning protozoa, fungi, plants, and animals. The term 'mitochondrion' is derived from a Greek word meaning thread. This accurately describes their appearance in the light microscope, as barely visible thread like structures. Following the invention of the electron microscope, scientists learned that mitochondria have a complex structure that allows them to harness metabolic energy in a useful form.

  • Cellular Membrane Essay

    1190 Words  | 5 Pages

    Cellular membranes are complex, two-dimensional fluids composed mainly of lipids and proteins, which are constantly in motion. Membrane lipids are organized in a bilayer (two monolayers of lipids forming a single membrane) whereas proteins are scattered throughout the bilayer. The most significant feature of all natural membranes is their flexibility or their ability to change shape without losing their integrity and becoming leaky. Since the forces holding the bilayer are weak non-covalent interactions

  • Skeletons Research Paper

    1664 Words  | 7 Pages

    Cytoskeletons are common for every living organisms present, be it bacteria, archaea, eukaryotes or prokaryotes. It is present in the cytoplasm of a cell and has a very complex network that consists of tubules and filaments that interlink each other1. Cytoskeletons are comprised of three main proteins in eukaryotes and they are usually able to multiply very fast or even disassemble depending on what the cell needs at any given moment.2 The structures of cytoskeletons can differ from one another and

  • Property Of Life: Characteristics Of Living Organisms

    1618 Words  | 7 Pages

    organisms. The first property of life is order; which states that molecules in living things are arranged in specific structures that consist of one or more cells. Inside each cell, atoms make up molecules; the molecules are what make up the cell organelles and other cellular inclusions. Whereas similar cells form tissues that collaborator to create organs, these organs has distinct functions that keep living organisms alive. The second property of life is regulation, which deals with the environment

  • Importance Of Fungi

    1375 Words  | 6 Pages

    FUNGI They have well developed organelles including nuclei, mitochondria, they are more developed than bacteria. The most important characteristic of fungi is the possession of a filamentous body consisting of strands of hyphae. The mycelium can be sub-divided into cross-wall called septa, however there many non-septate fungi. They about 5 μm in diameter the population range between 0.1 – 1 million propagules per gram of soil. Almost all fungi are heterotrophic in nature and all are aerobic thus

  • Differences: The Disadvantages Of Prokaryotes And Eukaryotes

    786 Words  | 4 Pages

    Relebogile Moloko 1155553 Introductory life sciences Assignment 1 Prokaryotes and eukaryotes are two different levels of cells. Prokaryotes are cells that do not have a membrane bound nucleus or organelles sounded by membranes and eukaryotes are cells that have a membrane bound nucleus as well as membrane bound organelle. They have obvious structural differences which result in differences functions and cell efficiency. From my research, I have observed that eukaryotes have structural advantages over prokaryotes

  • Eukaryotic Cells

    2117 Words  | 9 Pages

    important organelles and without them the cell cannot function accurately. With organelles such as the nucleus which directs cell activity and contains DNA, ribosomes which make protein, the vacuole which is used for storage and in order for the cell to survive; the mitochondria. The mitochondria are often described as the energy powerhouse of the cell as organisms need energy to maintain homeostasis. The mitochondria are found in the cell cytoplasm and are double membrane enclosed organelles ‘which

  • Assignment: Eukaryotic Cells

    1114 Words  | 5 Pages

    cells, eukaryotic cells have: 1) a membrane-bound nucleus; 2) numerous membrane-bound organelles such as the endoplasmic reticulum, Golgi apparatus, chloroplasts, mitochondria, and others; and 3) several, rod-shaped chromosomes. Because a eukaryotic cell’s nucleus is surrounded by a membrane, it is often said to have a “true nucleus.” The word “organelle” means “little organ,” and, as already mentioned, organelles have specialized cellular functions, just as the organs of your body have specialized

  • Structure Of Cell Essay

    817 Words  | 4 Pages

    Function: They play a major role in the synthesis of proteins. 4. Mitochondria: They are small rod-shaped organelles. It is a double membrane structure with outer membrane being smooth and porous whereas inner membrane being thrown into a number of folds called cristae. They contain their own DNA and ribosomes. They are absent in bacteria and red blood cells

  • Difference Between Prokaryotes And Eukaryotes

    985 Words  | 4 Pages

    McDonnell 1. The major differences between prokaryotes and eukaryotes are as follows; prokaryotes are much smaller than eukaryotes, prokaryotes have a nucleoid instead of a nucleus (which eukaryotic cells have), prokaryotes lack a membrane bound organelles while eukaryotes have them, prokaryotes are bacterial cells while eukaryotes can be considered the building blocks of plant and animal life. 2. A. A nucleus is basically the “brain” of a cell. It controls reproduction and contains the genetic information

  • Biochemistry: The Cytoskeleton

    1465 Words  | 6 Pages

    1.1 The Cytoskeleton The concept and the term ‘cytosquelette’, (in French) were first introduced by a French embryologist Paul Wintrebert in 1931 (Frixione 2000). Cytoskeleton is a complex network array of cytoplasmic fibers that determine and control visco-elastic properties and mechanical strength of cells. It also organizes and gives structure to the cell interior, controls many dynamic processes, such as intracellular trafficking, cell division, adhesion, and locomotion. It is ubiquitously present

  • Light Microscope Essay

    1095 Words  | 5 Pages

    1. Light Microscope Electron Microscope Cell Components Seen cell walls, vacuoles, cytoplasm, chloroplasts, nucleus and plasma membrane. Cell structure and ultrastructure of organelles such as cell wall, nucleus, nucleolus, vacuoles, mitochondria, rough and smooth endoplasmic reticulum, cell membrane, chloroplast, Golgi apparatus, and ribosomes can be seen. Specimen Preparation Simple procedure required and involves staining Procedure is harsh. Illumination Visible light rays are focused by glass

  • Deoxyribose Organelles

    1264 Words  | 6 Pages

    Deoxyribose nucleic acid (DNA) is present in the nucleus of all living organisms. It controls all the chemical changes within the cell and determines the kind of organism that is produced. Each cell is identical (unless specialised) and contains the genetic information of the living organism. DNA consists of a double strand of nucleotides, the sugar-phosphate chains are parallel to each other, and these chains are held together by bonds between the bases. Nucleotides are made up of three parts; a