• 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 1C STUDY GUIDE #1
Biology 1C STUDY GUIDE #1

... For the following protist groups, be able to list the distinguishing characteristics (including photosynthetic pigments, cell wall material, life history etc.), diagram a simple representative life cycle, describe some of their ecology, and if appropriate, some human uses. Also, know the phylum and ...
Diffusion and Osmosis PowerPoint
Diffusion and Osmosis PowerPoint

... • The contents of a vesicle can be released by a cell using the process called exocytosis. • Exocytosis occurs in the opposite way that ...
Cell Basics
Cell Basics

... Chloroplast – A green structure found inside a plant cell. This structure changes ...
Power Point for Lesson 1-3
Power Point for Lesson 1-3

... Potato strips soaked in diluted salt solution? Potato strips soaked in concentrated salt solution? ...
Journey into a Cell: Organizer Sheet
Journey into a Cell: Organizer Sheet

... specific when recording your facts. You can elaborate on them when writing your story. (Each team member is responsible for 3-4 cell parts) What do these cell parts look like? ...
Cytoskeletal elements in bacteria
Cytoskeletal elements in bacteria

... is possibly driven through a treadmilling process. These movements somehow orient other processes and polarize cells. Future challenges in this field of moving structural elements include the urgent need to find molecules that interact with actin filaments and with IFs, both on the cytosolic and the ...
Introduction to Plants: Evolution, Characteristics and Life Cycle
Introduction to Plants: Evolution, Characteristics and Life Cycle

... Source of Plant Nutrients • Inorganic Compounds – Soil – Air ...
Chapter 5 notes a1 ct review
Chapter 5 notes a1 ct review

... either secretion or absorption. c. Columnar cells much taller than they are wide (like columns) and protect underlying tissues. May have cilia or microvilli, and often are specialized for secretion and absorption. d. Transitional cells change shape, from flat to cuboidal, as organs (like urinary b ...
CHAPTER 3: CELLS
CHAPTER 3: CELLS

... A COMPOSITE CELL or typical animal cell contains four major cell parts: See Fig 3.3, page 64. A. The CELL (or plasma) MEMBRANE, which is the outer boundary of the cell. B. The CYTOPLASM, which holds the cellular organelles. C. The CELLULAR ORGANELLES, which perform specific functions of the cell. D. ...
3 Cell Boundaries powerpoint
3 Cell Boundaries powerpoint

... – Channels are specific to certain molecules – 100 different protein channels ...
cell membrane
cell membrane

... • Exocytosis: sending large amounts of material out of the cell ...
CELL WALL ACTIVE ANTIBIOTICS I {ST1}
CELL WALL ACTIVE ANTIBIOTICS I {ST1}

...  Penicillin has a β-lactam ring, which mimics the N- ...
cell membrane
cell membrane

... 3 – cell membrane: controls what enters and exits the cell 4 – cytoplasm: holds cell organelles 5 – cell wall: keeps plant cells RIGID and supports plant cell 6 – vacuole: stores materials 7 - chloroplast: site of ...
Tissues and Membranes
Tissues and Membranes

... the basement membrane. • Outer layer of skin • As skin cells age, they accumulate keratin (a protein) and then harden and die. ...
In EVALUATION  OF PHOTOTOXIC PROPERTIES OF FOUR  STRUCTURALLY RELATED
In EVALUATION OF PHOTOTOXIC PROPERTIES OF FOUR STRUCTURALLY RELATED

... protocol was as follows: cells in logarithmic growth (at 1O6/me) were incubated in 12 X 75 mm tubes for 1 h with various concentrations of photosensitizers in the absence of serum. Appropriate controls (no drug and dark) were included. Following the incubation the cells were washed and exposed to fl ...
Nguyen-ICAAC-IDSA-2008-A-972
Nguyen-ICAAC-IDSA-2008-A-972

... Merged images suggest that NP does not localize within acidic vacuoles, in contrast with SCV. ...
Prostaglandin production by human trabecular cells: in vitro
Prostaglandin production by human trabecular cells: in vitro

... trabecular cells. To examine this possibility, media from well-defined trabecular cell material were assayed using specific radioimmunoassays. Morphologically differentiated human trabecular cells produced high levels of PGE 2 , and somewhat lower levels of PGF2o and 6KF la in the presence and absen ...
Presentation - Cell analogies
Presentation - Cell analogies

... - a skin cell produces proteins that keep your skin waterproof, protected from the sun. - a red blood cell produces proteins that carry oxygen. - a muscle cell produces proteins that promote movement. ...
Slide 1
Slide 1

... Over-expressing C-cad dramatically increases cadherins and does not change B-1 integrin receptors Dominant negative C-cad slightly reduces cadherins and B-1 receptors which contributes to lower FN fibrils Cell-cell adhesion is regulated through changes of adhesive activity rather than expression. Sh ...
Stem Cell Research
Stem Cell Research

... • Countries that allow research without government funding: Switzerland, Finland, Greece, Brazil, Netherlands ...
The 6 Kingdom`s
The 6 Kingdom`s

... classification and what are the 7 levels of his system? ...
Comparing Plant cells and Animal cells Lab Report
Comparing Plant cells and Animal cells Lab Report

... ConclusionMy hypothesis was what are the similarities and differences between a plant cell and an animal cell. What I learned from my experience of looking into the microscope is that the structure of a plant cell is quite similar and different from the structure of a animal cell structure. Animal ...
Comparison with previous screens
Comparison with previous screens

... resulted in an increase in metaphase figures, which facilitated examination of cells by automated microscopy to detect mitotic defects. The effects of dsRNAs causing mitotic abnormalities were subsequently reexamined in the absence of Cdc27 depletion to confirm the mitotic phenotype. In comparing ou ...
Blood and Blood Cells - Tamalpais Union High School District
Blood and Blood Cells - Tamalpais Union High School District

... and makes up about 55% of the total blood volume. The cellular components – collectively called the ‘formed elements’ – make up the remaining 45% of the blood. These formed elements include two types of cells – erythrocytes (red blood cells) and leukocytes (white blood cells) – along with cellular f ...
A C E B D Match A. Nucleus B. Cell membrane C. Vacuole D
A C E B D Match A. Nucleus B. Cell membrane C. Vacuole D

... A. All organisms are made of cells Cells are the smallest units of life All cells arise from pre-existing cells B. All organisms are made of cells Chromosomes are the basis for all genetic inheritance All cells arise from pre-existing cells C. All organisms contain organs made of tissues Cells are t ...
< 1 ... 512 513 514 515 516 517 518 519 520 ... 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