• 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
Biology CP Plant Ch. 20,21,22 ppt notes
Biology CP Plant Ch. 20,21,22 ppt notes

... Plants have simpler needs than animals Plants require 17 chemical elements for their life cycles ...
2.3 Cell Continuity
2.3 Cell Continuity

... Q. What is the medical term for the group of disorders in which certain cells lose normal control of mitosis? Animal cell ...
Transport Group work
Transport Group work

... In science models are a set of ideas that, together, are used to try to explain how natural phenomena might work. A model may be a graph, a diagram, a set of ideas set down in words, or anything that can be used to represent the phenomenon. For example, a drawing of a cell is not a real cell, but he ...
Ryabch example
Ryabch example

... supplemented with bovine serum and antibiotics. Vero and CV-1 cultures represented regular prolonged cells originated from monkey fibroblasts. BHK-21 prolonged cell culture originated from Syrian hamster fibroblasts. Cell culture L-68 represents human diploid fibroblast culture, certified for vaccin ...
L-form bacteria, cell walls and the origins of life
L-form bacteria, cell walls and the origins of life

... used to replicate and express the information in DNA [9,10]. These differences are consistent with the notion that the mechanisms underlying various key cell functions were still in a state of flux when the early ancestors of the archaea and bacteria separated from each other. We have observed L-for ...
Making an onion slide
Making an onion slide

... Cells are very small. You cannot see them without help. You have already learnt how to use a microscope, and you will now use a microscope to observe a plant cell. ...
Describe cell processes necessary for achieving homeostasis
Describe cell processes necessary for achieving homeostasis

... Because plant cells have a cell wall not present within animal cells, you will notice a couple of differences that plant cells experience during extreme water gain and loss.  Notice that an animal cell may burst (lyse) if too much water enters. However, a plant cell has a cell wall that helps keep ...
Chapter 4 Functional Anatomy of Prokaryotic and Eukaryotic Cells
Chapter 4 Functional Anatomy of Prokaryotic and Eukaryotic Cells

... contain sterols, making them more rigid. Both prokaryotic and eukaryotic membranes have a twolayered structure, molecules in parallel rows, called a phospholipid bilayer. One end (phosphate) is water soluble and the other (hydrocarbon) is insoluble. The water-soluble ends are on the outside of the b ...
Cell Structure and Function
Cell Structure and Function

... up the duplicated chromosome.  They are held together by a structure called a centromere. ...
Slide 1 - Ommbid.com
Slide 1 - Ommbid.com

... A, Control human fibroblasts incubated with LDL for 24 h, immunostained with antipeptide antibodies to the C-terminus of NPC1 protein, and viewed with confocal fluorescence microscopy. NPC1 immunofluorescence is present in small granules that are distributed throughout the cytoplasm of cells. B and ...
c - St. Olaf Pages
c - St. Olaf Pages

... •Stick together •Communicate •Ways of moving materials around •Germ vs Soma-controls on mitosis and meiosis •Differentiated cells are arranged in tissues ...
Cell Review - Catawba County Schools
Cell Review - Catawba County Schools

... Study Guide for Quiz --plant & animal cell organelles & review of protists, levels of organization, & homeostasis Be able to label and describe the function of these organelles: a. b. c. d. e. f. g. h. i. j. ...
Effects of aflatoxins and fumonisins on the immune system and gut
Effects of aflatoxins and fumonisins on the immune system and gut

... Mycoplasma agalactiae strains, followed by a booster shot 2 weeks later. Exposure to the contaminated diet diminished the specific antibody titre after vaccination against M. agalactiae. In contrast, ingestion of the contaminated feed had no effect on the serum concentration of the immunoglobulin su ...
PDF
PDF

... movements of the earlier more anterior axial morphogenesis, and continues smoothly on from the latter in its timing. The initial formation of the tail-bud coincides with an apparent cessation of cell recruitment into the mesoderm as a whole, from the outer cell layers (seeFig. 2D-F). At stage 20, th ...
Cellular Transport - St. John the Baptist Diocesan High School
Cellular Transport - St. John the Baptist Diocesan High School

... environment and the inside of the cell  The “water-fearing” lipid tails face each other on the inside of the membrane ...
AN OPTICAL-INDUCED PLATFORM FOR MULTIPLE GENES
AN OPTICAL-INDUCED PLATFORM FOR MULTIPLE GENES

... microscopy, a commercial digital projector and an image acquisition system, as schematically shown in Fig 1(A). Figures 1(B) and 1(C) show an exploded view and a photograph of the ODEP chip. This chip was consisted of a thin layer of amorphous silicon coated on indium tin oxide (ITO) glass as a bott ...
File
File

... Hypotonic: The solution has a lower concentration of solutes and a higher concentration of water than inside the cell. (Low solute; High water) ...
Sample - You, Me and Myasthenia Gravis
Sample - You, Me and Myasthenia Gravis

... stem cells develop into white blood cells known as phagocytes or macrophages. Phagocytes destroy invaders by engulfing and digesting them. A small number of phagocytes become specialized inflammatory cells. Other stem cells develop into white blood cells called lymphocytes. The two major kinds of ly ...
File
File

... areas of high to low concentration. Diffusion of water (highlow conc.) across a semi-permeable membrane. Material being engulfed by a cell (phagocytosis or pinosytosis). No energy required to move molecules in or out of cell. Use energy (active transport) to move molecules against concentration gra ...
7th Grade Chapter 2 Cell Structure and Function
7th Grade Chapter 2 Cell Structure and Function

... from Greek kytos, means “hollow vessel”; and plasma, means “something molded” ...
21development
21development

... – Transplanted nuclei from relatively undifferentiated cells from an early embryo lead to the development of most eggs into tadpoles. – Transplanted nuclei from differentiated intestinal cells lead to fewer than 2% of the cells developing into normal tadpoles. – Most of the embryos failed to make it ...
Location of Actin, Myosin, and Microtubular Structures during
Location of Actin, Myosin, and Microtubular Structures during

... with pseudopod or filopod emission . A similar mottled distribution of fluorescence is also evident in locomoting cells, along with brighter areas corresponding to the tail region where ameba thickness is greater (Fig. 5, E and F) . Fluorescence can not be detected at the tip of the large frontal ps ...
I Tumor suppressor genes in general:
I Tumor suppressor genes in general:

... example of such a syndrome, including which gene that is mutated and why this particular defect can lead to cancer development. ...
Cell Motility Learning Objectives Be able to define cell motility and
Cell Motility Learning Objectives Be able to define cell motility and

... Cell motility is the directed movement of a cell. It is important four four reasons: wandering cells must get to sites of infections, cells must migrate during embryology and normal development, cell motility is involved in wound healing, and is involved in the spread of cancer throughout the body. ...
CNH Unit 1 Power Point cell membrane, transport, cell processes
CNH Unit 1 Power Point cell membrane, transport, cell processes

... Cell Membrane • https://www.youtube.com/watch?v=Pfu1DE9PK2w • The cell membrane is fluid because the parts in the cell membrane are fluid, which means the parts move. • A mosaic is a work of art made by bits of glass put together to make an image and a cell membrane is like a mosaic because it has m ...
< 1 ... 528 529 530 531 532 533 534 535 536 ... 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