• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
5.5 Transport
5.5 Transport

... The net movement of water will be from side B to side A. The net movement of water will be from side A to side B. Side B is hypertonic relative to side A. There will be no net movement of water. ...
section1
section1

... 4) Axoplasmic transport The concept: Various organelles and materials must be moved from the cell body, where they are made, to the axon and its terminals in order to maintain the structure and function of the cell axon.  The mechanisms: Cytoskeletal filaments in the axon and cell body, which serv ...
7Aa – Heart transplants/Human organs/Organ parts
7Aa – Heart transplants/Human organs/Organ parts

... Green disc containing chlorophyll. Found in plant cells. Where the plant makes food using photosynthesis. ...
Biology 164 – Study Guide
Biology 164 – Study Guide

... Terms – Know the definition and anatomical/physiological significance of: adenine (A), anticodon (on tRNA), code (on DNA), codon (on mRNA), complementary base pairing rules for DNA and RNA, cytosine (C), DNA polymerase, DNA, gene, guanine (G), nucleotide, RNA polymerase, thymine (T), transcription, ...
Development of in-vitro Models to Study Breast Cancer Progression
Development of in-vitro Models to Study Breast Cancer Progression

... breast cancer tissue and grew then in a 3 dimensional matrix of collagen.  By labelling our cells with different colours we were able to identify the different cell types in our model.  We used the model to investigate whether fibroblasts are able to make pre-invasive lesions become invasive. ...
Unit 03 - Lessons 1-5
Unit 03 - Lessons 1-5

... 5. Virchow – (1800’s) – stated all cells must come from existing cells ...
Interplay between cellular senescence and plasticity at the origin of
Interplay between cellular senescence and plasticity at the origin of

... affecting nearby tissue. I have recently reported in Cell that cellular senescence plays an active role in orchestrating tissue remodelling (2). Besides being relevant for ageing, cellular senescence is associated with a wide variety of age-related disorders, including cancer, playing antagonistic ...
CumulativeStudyGuide
CumulativeStudyGuide

... is shed that way. For respiratory organisms, they cause coughs in order to be transmitted to the lungs of the next host. 2. TB is a slow-growing bacteria that will slowly cause granuloma formation in the lungs. 3. Legionella is interesting because it infects free-living cells that resemble our macro ...
Spectacular Cells and Marvelous Membranes : Teacher Overview
Spectacular Cells and Marvelous Membranes : Teacher Overview

... positioned and focused for the students. ...
Chapter 6 A Tour of the Cell
Chapter 6 A Tour of the Cell

... cell = mitochondrion  over time prokaryotic cell became an endosymbiont (a cell living w/in another cell)  some time later some or 1 of these engulfed a photosynthetic prokaryotic cell and ...
Research suggests common blood cancer could
Research suggests common blood cancer could

... appears capable of supporting cancer growth, even though the majority of patients will not progress to myeloma. While this research is in the early stages, it offers the exciting possibility that early Myeloma never spreads to other organs, suggesting that myeloma cells rely on support from interven ...
2.-6 Lipid Bilayer of the Cell Membrane
2.-6 Lipid Bilayer of the Cell Membrane

... proteins is found in the DNA (your genes) – transcribe that information onto a messenger RNA molecule • each sequence of 3 nucleotides in DNA is called base triplet • each base triplet is transcribed as 3 RNA nucleotides (codon) ...
paramecium tetraurelia.
paramecium tetraurelia.

... nucleus is derived from micronucIei and gives rise to two new macronuclei, which are readily identified as different from other nuclear structures found; hence, if micronuclei are absent or nonfunctional, neither a fertilization nucleus nor the two distinctive new macronuclei can be formed and nucle ...
Cell Membranes - WordPress.com
Cell Membranes - WordPress.com

... •Peripheral proteins are usually found on the ___________________________ of the cell membrane. Their role is to give ____________________________________ to the cell. •The _____________________/ ____________________ tails are what bring about the “selectively permeable” nature to the cell membrane. ...
Chapter 4 Prokaryotic Cell
Chapter 4 Prokaryotic Cell

... • Group translocation – molecules move from an are low concentration to high concentration. Energy is used. Transport proteins are involved. While the molecule is being transported, it is chemically altered. • Glucose transported across the membrane, phosphate is added. ...
Chapter 4 Prokaryotic Cell
Chapter 4 Prokaryotic Cell

... • Group translocation – molecules move from an are low concentration to high concentration. Energy is used. Transport proteins are involved. While the molecule is being transported, it is chemically altered. • Glucose transported across the membrane, phosphate is added. ...
Scott Foresman Science
Scott Foresman Science

... Leaves and other plant parts are green because of chlorophyll. Chlorophyll is a green substance that traps energy from the Sun and allows plants to make their own food. Plant cells have structures that store chlorophyll. These structures are called chloroplasts. Animal cells do not have chloroplasts ...
The Cell Membrane, Passive Transport and Active Transport
The Cell Membrane, Passive Transport and Active Transport

... Reverse osmosis is a tool for purifying water. Pressure is applied to salt water or polluted water and forced through a membrane leaving salt or other impurities behind as the water passes through several filters. (It's expensive and it also removes fluoride.) Swelling caused by placing a cell in a ...
Cell Structure
Cell Structure

... – Rough ER is where ribosomes attach and make proteins. Other ribosomes float freely in the cytoplasm. Each protein has a specific job. Ex. Part of the plasma membrane. – Smooth ER does not have ribosomes attached and also performs chemical activities such as making and storing lipids. ...
Pneumoconiosis - West Virginia University
Pneumoconiosis - West Virginia University

... white blood cells that crawl around in the extracellular fluids of your body and gobble up microbes and other foreign material. They ingest these microbes by phagocytosis ("cell eating"). Parts of the cell surround the particle to be eaten, then the macrophage's membrane flows together and the parti ...
Cell - yayscienceclass.com
Cell - yayscienceclass.com

... Cilia and Flagella – Cilia and flagella are motile appendages – Flagella propel the cell in a whiplike motion. – Cilia move in a coordinated back-and-forth ...
Slide 1 (Early Prophase): What is interphase often
Slide 1 (Early Prophase): What is interphase often

... In cell D each chromosome has doubled and the two parts are separating. As the split rods move away from each other, they shape themselves into what may be described as two V’s facing each other. Spindle fibers are faint but visible at S in the lower part of the cell. Their function is to pull the n ...
BIOLOGY Cell Review Notes (source: SW Biology 11)
BIOLOGY Cell Review Notes (source: SW Biology 11)

...  ORGAN SYSTEM LEVEL: Several organs working together to perform a function make up an organ system. The different organ systems in a multicellular organism interact to carry out the processes of life  ...
SAPS - Animations - Transport of water and sugar in plants
SAPS - Animations - Transport of water and sugar in plants

... transport – xylem and phloem)  Respiration and photosynthesis  Cell growth and division The purpose of these animations is to illustrate how the different processes going on inside plant are dependent on each other, and to show how different structures support these processes. ...
Cell Structure & Function
Cell Structure & Function

... • Bacteria and Archae also have cell walls, but they are different from plant and fungi • Animal cells DO NOT have cell walls ...
< 1 ... 649 650 651 652 653 654 655 656 657 ... 1231 >

Amitosis

Amitosis (a- + mitosis) is absence of mitosis, the usual form of cell division in the cells of eukaryotes. There are several senses in which eukaryotic cells can be amitotic. One refers to capability for non-mitotic division and the other refers to lack of capability for division. In one sense of the word, which is now mostly obsolete, amitosis is cell division in eukaryotic cells that happens without the usual features of mitosis as seen on microscopy, namely, without nuclear envelope breakdown and without formation of mitotic spindle and condensed chromosomes as far as microscopy can detect. However, most examples of cell division formerly thought to belong to this supposedly ""non-mitotic"" class, such as the division of unicellular eukaryotes, are today recognized as belonging to a class of mitosis called closed mitosis. A spectrum of mitotic activity can be categorized as open, semi-closed, and closed mitosis, depending on the fate of the nuclear envelope. An exception is the division of ciliate macronucleus, which is not mitotic, and the reference to this process as amitosis may be the only legitimate use of the ""non-mitotic division"" sense of the term today. In animals and plants which normally have open mitosis, the microscopic picture described in the 19th century as amitosis most likely corresponded to apoptosis, a process of programmed cell death associated with fragmentation of the nucleus and cytoplasm. Relatedly, even in the late 19th century cytologists mentioned that in larger life forms, amitosis is a ""forerunner of degeneration"".Another sense of amitotic refers to cells of certain tissues that are usually no longer capable of mitosis once the organism has matured into adulthood. In humans this is true of various muscle and nerve tissue types; if the existing ones are damaged, they cannot be replaced with new ones of equal capability. For example, cardiac muscle destroyed by heart attack and nerves destroyed by piercing trauma usually cannot regenerate. In contrast, skin cells are capable of mitosis throughout adulthood; old skin cells that die and slough off are replaced with new ones. Human liver tissue also has a sort of dormant regenerative ability; it is usually not needed or expressed but can be elicited if needed.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report