• 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
Are you ready for S377?
Are you ready for S377?

... questions (SAQs) in Section 4. The notes cover the knowledge and skills you should already possess to start the course, and the SAQs will provide a useful exercise for all prospective students of S377. If you understand the questions and can answer more than half of them, then it is likely that you ...
High Efficiency Thin Film Solar Cells
High Efficiency Thin Film Solar Cells

... • When light energy strikes the solar cell, electrons are knocked loose from the atoms in the semiconductor material. • The electrons can be captured in the form of an electric current -- that is, electricity. ...
Ans. - Testlabz.com
Ans. - Testlabz.com

... (ii) Potato A is necessary for this experiment as it acts as the control set-up to compare the results with the other three potatoes. (iii) Water does not gather in the hollowed out portion of A since it is empty having no concentration at all. Potato D, which is a boiled one, loses its semi-permeab ...
m - Biochemical Society Transactions
m - Biochemical Society Transactions

... The growth of most eukaryotic cells is regulated by three major transmembrane signalling mechanisms: (i) protein kinases associated with growth-factor receptors, (ii) protein kinase C (PKC), and (iii) the G-protein family (which involves protein kinase A). Many studies since 1982 from our laboratory ...
PART 1. Principles of development in biology
PART 1. Principles of development in biology

... being compared. For instance, the bird wing and the bat wing are homologous as forelimbs, but not as wings. In other words, they share a common underlying structure of forelimb bones because birds and mammals share a common ancestry. However, the bird wing developed independently from the bat wing. ...
QUIZ A - UniMAP Portal
QUIZ A - UniMAP Portal

...  Secondary metabolites are non-growth related.  These phenomena may take place during stationary phase: 1. Total cell mass concentration may stay constant, but the number of viable cells may decrease 2. Cell lysis may occur and viable cell mass may drop. Cells may not be growing but may have acti ...
Cell Project - Brandywine School District
Cell Project - Brandywine School District

... Almost all items (90%) that need to be identified have labels. It is clear which label goes with which structure. Be sure to list the function of each part. Develop a table or diagram to list the similarities and differences of each cell. 94%-85% of the assigned structures are drawn accurately and a ...
9.01 Introduction to Neuroscience
9.01 Introduction to Neuroscience

... 7) Oligodendrocytes and Schwann cells differ in what way: a) Oligodendrocytes are found in the central nervous system, whereas Schwann cells are found in the peripheral nervous system. b) Oligodendrocytes are myelinating glia, whereas Schwann cells are microglia c) One oligodendrocyte will surround ...
The Production and Action of Interferon in Chinese Hamster Cells
The Production and Action of Interferon in Chinese Hamster Cells

... amounts being produced in 'aged' ceils. Its apparent tool. wt. was 25 ooo. C H O - K t cells, an established line of Chinese hamster cells, did not synthesize interferon in response to viruses, but were sensitive to its action. A functioning interferon system has been discovered in all classes of ve ...
Presentazione di PowerPoint
Presentazione di PowerPoint

... lymphocytes that is highly conserved, and well evident in both human and murine species.  The term 'NKT cells' was first used to describe a small subset of the T lymphocytes that coexpressed some markers traditionally associated with NK cells.  The most prominent of these markers was the NK1.1 ant ...
Unit 2 The Chemistry of Life
Unit 2 The Chemistry of Life

... Seventh Grade ...
Some Observations on the Flagella and
Some Observations on the Flagella and

... I n the bacteria in which blepharoplasts have previously been demonstrated, and also as shown here in Vibrio cholerae, each flagellum appears to be attached to a separate basal granule or blepharoplast, whereas in spirilla the much smaller flagellar fibrils arise in bundles from the same blepharopla ...
Molekuláris bionika és Infobionika Szakok tananyagának komplex
Molekuláris bionika és Infobionika Szakok tananyagának komplex

... PETER PAZMANY CATHOLIC UNIVERSITY Consortium members ...
System_Structure
System_Structure

... sugars called monosaccharides. Common monosaccharides are glucose and fructose, found in most sweets. They join together by glycosidic bonds, created by dehydration reactions between the -OH group of one monosaccharide to the –H of another. These form the three most important aspects to the cell wal ...
Six Kingdoms Study Guide
Six Kingdoms Study Guide

... Mostly Asexual reproduction, but some may conjugate (swap DNA) Domain Eukarya, Kingdom Fungi Consumer/ Decomposers- Eukaryotes- Have tissues and organs, BUT not organ systems Chitin Cell Wall (Chitin is in crab shell)- So Don’t Move Root-like hyphae suck up moisture and nutrients Some help other pla ...
The three-dimensional arrangement of chromosomes at meiotic
The three-dimensional arrangement of chromosomes at meiotic

... The precision of the synaptic process and the regularity of chromosome segregation suggests a high degree of order in the eukaryote nucleus prior to and during meiosis. Examples of chromosome order in the nucleus include the regular placement of centromeres and telomeres from telophase through to pr ...
“Methods in Histology” Major types of Light Microscopy Microscopy
“Methods in Histology” Major types of Light Microscopy Microscopy

... stains such cell components pink or orange. • These structures are said to be “acidophilic.” ...
Human Pluripotent Stem Cell-derived Articular Chondrocytes
Human Pluripotent Stem Cell-derived Articular Chondrocytes

... and induced pluripotent stem cells (iPSCs), represent a novel and potentially unlimited source of chondrocytes and tissues as these cells are able to generate a broad spectrum of cell types under appropriate conditions in vitro. Methods: Our approach to achieve efficient development of chondrocytes ...
Cell Parts and Function
Cell Parts and Function

... 13. The nucleolus is a darker area in the nucleus where ribosome parts are made. This would be like a robot repair table in the control room. ...
Prokaryotic and Eukaryotic Cells
Prokaryotic and Eukaryotic Cells

... The endospores are composed of a complex of dipicolinc acid and calcium and the function of the endospore is to protect the bacterial chromosome. The endospores are very resistant to heat, desiccation, freezing, and other physical properties such as pesticides, antibiotics, dyes, and acids. ...
SCENAR: again on its effectiveness Ya. Grinberg B. Kulizhky The
SCENAR: again on its effectiveness Ya. Grinberg B. Kulizhky The

... Electroporators: amplitude (in different devices) - 20-3000 V; pulse duration 15 msec — 5 msec; pulse shape is exponential (more often controlled), in cosmetology the current is 5-100 Hz with neural bipolar pulse shape (due to its physiological features and favorable tolerability by patients, if com ...
Some Observations on the Flagella and
Some Observations on the Flagella and

... I n the bacteria in which blepharoplasts have previously been demonstrated, and also as shown here in Vibrio cholerae, each flagellum appears to be attached to a separate basal granule or blepharoplast, whereas in spirilla the much smaller flagellar fibrils arise in bundles from the same blepharopla ...
Cell Travel Brochure 2
Cell Travel Brochure 2

... 5. You must use correct spelling and grammar throughout the project. An exception might be if you alter the name of a cell part slightly for creative purposes. Example: Lysoman = Lysosome. 6. The front cover of the brochure should include the name of your cell and a graphic of your choice. It should ...
Cytokine receptors and signal transduction
Cytokine receptors and signal transduction

... Induces antibacterial effect (activation of neutrophils, NK cells and macrophages, increased their ability to recognize, kill, and digest foreign materials or microbes). ...
PDF Copy
PDF Copy

... not been identified. Here, we show that when placed in darkness, the unicellular chlorophyte alga Dunaliella tertiolecta undergoes a form of cell death reminiscent of apoptosis in metazoans. Many morphological criteria of apoptotic cell death were met, including an increase in chromatin margination, ...
< 1 ... 554 555 556 557 558 559 560 561 562 ... 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