• 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
Cell Organelles Lesson Overview: In this lesson, students will use
Cell Organelles Lesson Overview: In this lesson, students will use

... In this lesson, students will use the 5-3-1 and Making Thinking Visible (MTV) to express their findings on a specific organelle. The class will be given a physical location (the school, the mall, home, or a city) to use as a comparison to the cell organelle they choose. Each cooperative group will b ...
Efficient delivery of active Cas9 protein and targetspecific sgRNA to
Efficient delivery of active Cas9 protein and targetspecific sgRNA to

Active Transport
Active Transport

... • Movement of particles (solute) from high to low concentration will continue until there is an even distribution of particles. • This is called equilibrium. • Particles move across the membrane ...
Bravais lattices
Bravais lattices

... • each point pertains to 1 WS cell • translation => covers the whole space • no reference to a particular choice of the primitive vectors: same symmetry of the lattice! ...
the hydrogen economy: fuel cells
the hydrogen economy: fuel cells

... Alkali cells were used in the Apollo spacecraft to provide both electricity and drinking water. It has an efficiency of about 70%. It is very susceptible to contamination, so it requires very pure hydrogen and oxygen. It is also very expensive, so this type of fuel cell is unlikely to be commerciali ...
oncogene
oncogene

... DNA from chemically treated mouse cells can transform normal mouse cells ...
Microbes PowerPoint
Microbes PowerPoint

... organic molecules (usually from dead organisms) from their environment through their cells walls. (outside to inside) ...
Cell Transport Review_Answers
Cell Transport Review_Answers

... e) What will happen to the level of the solution on each side? Side A will increase; side B will decrease 11.Red blood cells neither gain nor lose water when put into 0.9% NaCl. a) What term would you use to describe the tonicity of 0.9% NaCl for Red blood cells? isotonic b) Are the solutions below ...
Cell Project
Cell Project

... non-edible materials (clay, play dough, plaster, Styrofoam, pipe cleaners, etc.). The model must be three dimensional to receive full credit. Partial credit will be given for projects that are only 2D, such as drawn on poster board. Points will be deducted for leaving edible cells for the teacher to ...
Cell Transport - Cobb Learning
Cell Transport - Cobb Learning

... • Semi-permeable – allows only some materials through** • Small nonpolar molecules, such as hydrocarbons, can dissolve in the lipid bilayer • Large Polar molecules, such as sugars, do not cross the membrane easily ...
4042 Animal and plant cell culture
4042 Animal and plant cell culture

... New techniques in cell culture. Cell fusion and differentiation. Basic characteristics of cancer cell growth in culture and senescence Plant cell and tissue culture: Introduction to plant cell culture: what is plant cell and tissue culture and where is it used today. Structural, physiological and bi ...
DNA Replication
DNA Replication

... Deletion of the CNS1 sequence in the Th2 cluster do not initiate within the IL13 gene from Aladjem, Nature Rev.Genet. 8, 588 (2007) ...
Cell_analogies_collageAC 09
Cell_analogies_collageAC 09

... the reasoning behind the analogy. Use the following format: The nucleus is like a CEO because it controls and coordinates the activities of the whole cell in the same way the CEO controls and coordinates the activities of his company. (Do not use this analogy.) Here is another example: The cell wall ...
Negative autoregulation of BCL-6 is bypassed B cell lymphomas Xing Wang*
Negative autoregulation of BCL-6 is bypassed B cell lymphomas Xing Wang*

... deregulate BCL-6 by promoter substitution, only a few BCL-6 mutations have measurable effect on transcription. These socalled ‘‘activating mutations’’ are preferentially found in DLBCL cases. When tested in reporter assays in B cells, they confer unique transcriptional advantage over the wild-type s ...
Bacterial growth
Bacterial growth

... cells. 2. Exponential phase (sometimes called the log phase or the logarithmic phase) is a period characterized by cell doubling. The number of new bacteria appearing per unit time is proportional to the present population. The slope of this line is the specific growth rate of the organism, which is ...
Cell CELL Unicellular organisms are capable of
Cell CELL Unicellular organisms are capable of

... Nucleus was first described by Robert Brown in 1831. Nucleus is enclosed by a doublemembrane nuclear envelope. The space between the two membranes is called the perinuclear space. The perinuclear space forms a barrier between the nucleic materials and cytoplasmic materials. The outer membrane is usu ...
Use of fluorescently labeled Alt-R™ CRISPR
Use of fluorescently labeled Alt-R™ CRISPR

... We tested a variety of fluorescent dyes (data not shown), and found that Alt-R tracrRNA labeled at the 5’ end with ATTO 550 dye provided the best editing efficiencies and also avoided disruptive, non-specific binding observed with some other dyes. Additionally, we investigated the effectiveness of a ...
characterization of new human gastric epithelial cell lines derived
characterization of new human gastric epithelial cell lines derived

... pathogen Helicobacter pylori is still limitative for the study of this infection. Aiming to overcome this limitation, we have previously isolated clones of a subpopulation of the widely used heterogenic NCI-N87 (ATCC CRL-5822) gastric cell line1, those presenting typical epithelial markers and a pro ...
The Animal Cell
The Animal Cell

... suspended in the cytosol. While you will discover that the microfilaments and microtubules set up a "skeleton" of the cell, the cytosol fills the spaces. The cytoplasm has many different molecules dissolved in solution. You may discover enzymes, fatty acids, sugars, and amino acids that are used to ...
Chapter 5
Chapter 5

... 2. Facilitated diffusion: (larger polar molecules) membrane is impermeable, so even if they want to travel down the concentration gradient they can’t without help from a membrane channel (transport protein): Figure 5.7b ...
HypotonicHypertonicAndIsotonic Sept 24
HypotonicHypertonicAndIsotonic Sept 24

... • Causes the cell to shrink as its internal pressure decreases. ...
Major characteristics of microorganisms
Major characteristics of microorganisms

... • A seasoned microbiologist who is thoroughly familiar with the properties of the organisms • Decides that the organisms represent one or more species or genera. • Disadvantage: Personal opinion differs – The characteristics of an organism that seem important to one person may not be so important to ...
Cell Signaling - University of California, Irvine
Cell Signaling - University of California, Irvine

... – Sugar is taken up from bloodstream into cells ...
FACS-based purification of Arabidopsis microspores, sperm cells
FACS-based purification of Arabidopsis microspores, sperm cells

... detected in the SC fraction (Figure 2D), indicative of two pure populations. Re-analyzing sorted populations stained with 4',6-diamidino-2-phenylindole (DAPI) confirmed that the SC and VN populations were consistently more than 99% pure (Figure 2C). Furthermore, the ratio SC/VN before sorting was co ...
Cell Organelles and Their Functions
Cell Organelles and Their Functions

... This internal membrane system is so extensive that it accounts for more than half the total membrane in a cell. When newly formed proteins leave the rough endoplasmic reticulum, they are transported to this organelle, where the proteins are sorted and packaged. This part of the cell manufactures the ...
< 1 ... 585 586 587 588 589 590 591 592 593 ... 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