• 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
LOW
LOW

... Water Molecule Dissolved Molecule ...
- Iranian Journal of Science and Technology (Sciences)
- Iranian Journal of Science and Technology (Sciences)

... Marshmallow is a medicinal plant containing mucilage polysaccharides and various phenolic acids. Boron (B) is an essential micronutrient whose necessity for plant growth and development has been attributed to its role in cell wall pectin network and maintenance of integrity and performance of membra ...
Unit # 3 – Cells, Histology, Integumentary system Ms
Unit # 3 – Cells, Histology, Integumentary system Ms

... 3.05 Describe each of the following cellular transport processes and classify them as active or passive (Passive – diffusion, osmosis, facilitated diffusion, dialysis and filtration. Active – Phagocytosis, exocytosis, and active transport). 17. Osmosis is: a. movement of a substance across a membran ...
SMART Notebook
SMART Notebook

... All organisms that have cells with a nucleus may be unicellular or multi-cellular ...
PROJECT PROPOSAL for applicants for ITC fellowships
PROJECT PROPOSAL for applicants for ITC fellowships

Supplementary information Yeast strains, media and plasmids Yeast
Supplementary information Yeast strains, media and plasmids Yeast

... Yeast strains, media and plasmids Yeast strains used in this study are listed in Table I. Knock-out of SMP2, INO2 and IRE1 in the RS453 strain were done by homologous recombination using the appropriate smp2::TRP1, ino2::KanMX4 (kindly provided by Prof. H.J. Schueller), or ire1::HIS3 (kindly provide ...
Integrative Microbiology – The Third Golden Age Reflections
Integrative Microbiology – The Third Golden Age Reflections

... address a fundamental question in evolutionary biology, viz. whether mutations are spontaneous or induced by the selecting environment. In dramatic fashion, this experiment pointed out the usefulness of bacteriophages and bacteria as model systems for the study of some of the most important question ...
Slide 1
Slide 1

... Rough draft due Thursday: Detailed paragraph (typed or neatly written on separate paper) Describe how the organelles in a cell work together to make and use proteins. Include at least 5 different organelles in your essay. ...
Cell Structures
Cell Structures

...  Hypotonic Solution - contain a low concentration of solute relative to another solution (e.g. the cell's cytoplasm). When a cell is placed in a hypotonic solution, the water diffuses into the cell, causing the cell to swell and possibly explode. ...
Global Average Barometric Pressure: January
Global Average Barometric Pressure: January

... Remember that maps are of average pressures, so they just show general tendencies Aleutian Low not evident in July (but it is a weak feature) High pressure cells are more developed (have more isobars) over oceans in July High pressure cells are located farther north in July (both location and streng ...
Stratified epithelium contains more than one layer named by shape
Stratified epithelium contains more than one layer named by shape

... • Production of tissues and organs in the lab – framework of collagen or biodegradable polyester fibers – seeded with human cells – grown in “bioreactor” (inside of mouse) • supplies nutrients and oxygen to growing tissue ...
Cells - hrsbstaff.ednet.ns.ca
Cells - hrsbstaff.ednet.ns.ca

... group of heart cells make up tissue and together the make up your heart, which is an organ. Then the heart along with another group of organs make up the circulatory system. 2. molecule – cell – tissue – organ – organ system 5. Large multicellular organisms are more complex and cannot depend on just ...
The Dictyostelium cell cycle and its relationship to differentiation
The Dictyostelium cell cycle and its relationship to differentiation

... do not go through a second round of mitosis and S-phase during development. Those cells that have not yet reached this cell cycle control point at the time of starvation halt at this point during early development. These cells will become prespore cells. The cell cycle block is released at the mound ...
5th Grade Science CRT
5th Grade Science CRT

... movement of substances into and out of the cell.” ...
The Cell Membrane
The Cell Membrane

... SEMIPERMEABLE – means it allows some things through but not others ...
PowerPoint
PowerPoint

... -will treat in section two of course -Nervous: carries messages in body -Muscle: effects movement •Virtually all organs will have all four types Human Anatomy, Larry M. Frolich, Ph.D. ...
B4 revision ppt
B4 revision ppt

... into starch for storage or cellulose to make new cell walls. Both are polymers of glucose  Glucose can also be built up into fats, proteins and chlorophyll  Glucose molecules are broken down by respiration, releasing energy to power chemical reactions in cells ...
S6. Using Yeast to Make Scientists-Introduction to
S6. Using Yeast to Make Scientists-Introduction to

... Yeast, unlike humans, is unicellular. But, like human cells, yeast: •Has linear chromosomes •Must respirate •Must consume food •Must sense the environment surrounding its cells •Must arrest its growth in response to internal and environmental cues ...
Cell Membrane - AIS Semgu.KZ
Cell Membrane - AIS Semgu.KZ

... entering (osmosis) the vacuole, which then swells exerting internal force on the cell wall •Causes “rigidity” so the plant my increase by stacking cells ...
Active - cloudfront.net
Active - cloudfront.net

...  Allows movement of certain substances into and out of the cell.  Because the cell membrane is nonpolar, polar molecules, such as water, are unable to go through the cell membrane without going through a protein channel. ...
asdfs
asdfs

... Kind of transport used by ions like Ca+ + , Cl - , Na+ , and K + to move across cell membranes Facilitated diffusion with Ion channels (Na+ and K + can also move by the Na+ - K + pump) ...
Higher Human Biology Outcomes UNIT 1 Human Cells
Higher Human Biology Outcomes UNIT 1 Human Cells

... Differentiation and stem cells Division and differentiation in human cells o Cellular differentiation is the process by which an unspecialised cell becomes altered and adapted to perform a specialised function as part of a permanent tissue o Specialised cells are organised into tissues and organs o ...
Lecture Slides for Carbohydrates
Lecture Slides for Carbohydrates

... What the heck is diaminopimelate? ...
Cell body
Cell body

... extending from the cell body. 2. Bipolar neurons: Have two projections extending from the cell body. 3. Mutlipolar neurons: Have more than two projections extending from the cell body (e.g., one axon and many dendrites). The most common type of neuron found in the CNS. ...
Classification Summary
Classification Summary

... Unicellular or Multi-cellular or both Typical Reproduction (asexual, sexual or both) Body system (none, radial, or bilateral) Can cells form tissues? Yes or no? Capable of movement? How? ...
< 1 ... 557 558 559 560 561 562 563 564 565 ... 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