• 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
1. Cell_structure_function Chapter 2
1. Cell_structure_function Chapter 2

... to house their DNA. Organisms made up of prokaryotic cells are called Prokaryotes (all bacteria, all archaeans) • Eukaryotic cells – more complex structure. Contain many different kinds of membrane-bound structures called organelles suspended in cytosol. ...
FOA 9-19-2011
FOA 9-19-2011

... mitosis? A. Production of two identical cells. B. Production of two nuclei with identical DNA. C. Reproduction of mitochondria and chloroplasts. D. Division of the cytoplasm. ...
Cells - 1p225RobbieSci2010
Cells - 1p225RobbieSci2010

... a mammal, have a short lifespan and are unable to divide. ...
A549 Cell Line Profile
A549 Cell Line Profile

... Cell line history The A549 cell line was isolated in 1973 from a pulmonary adenocarcinoma1 in a study to attempt to establish continuous cell lines from 200 different tumours. Despite being developed as a tool for cancer research the cell line was consequently characterized as being representative o ...
136 color, while the cytoplasm is of a brownish hue. The cytoplasm
136 color, while the cytoplasm is of a brownish hue. The cytoplasm

... visible. This was always found to be the case whether one or several nucleoli were present. These filiaments radiating from many points on its periphery seem to hold it in position. Its position was influenced in the direction of attachment of the greatest number of nuclear fibres (Fig. 1). At a lat ...
cell diversity
cell diversity

... All biological systems from cells and organisms to populations, communities and ecosystems are affected by complex biotic and abiotic interactions involving exchange of matter and free energy. Homeostatic mechanisms reflect both common ancestry and divergence due to adaptation in different environme ...
Name and describe five organelles found in the cytoplasm
Name and describe five organelles found in the cytoplasm

... _____2. In plants, sun energy is used to make food by the ______. _____3. Specialized cells organized to perform a certain function are called _______. _____4. A plant cell differs from an animal cell because it has a ___ ___ outside the cell membrane. _____5. In the cell, the organelles are located ...
Prokaryotic vs. Eukaryotic Cells
Prokaryotic vs. Eukaryotic Cells

... Usually smaller than eukaryotic cells In organisms like bacteria and archaea Only a part of unicellular (one cell) organisms Reproduce asexually Have NO MEMBRANE BOUND ORGANELLES Contain ribosomes, a cell membrane, cell wall, cytoplasm and sometimes flagella DNA is in a circular shape called a plasm ...
Slide 1
Slide 1

... TYPE OF MOVEMENT ...
S  U M M A R Y
S U M M A R Y

... Many of these anticancer compounds are derived from living organisms. Etoposide and Paclitaxel (taxol), for instance, are both isolated from plants while doxorubicin and bleomycin are derived from bacteria. As many tumors become resistent over time, new anticancer drugs are still needed. Therefore t ...
Biology
Biology

... a. gain a better understanding of the organization of eukaryotic and prokaryotic cells b. gain a better understanding of the cell membrane and how it functions in the transport of molecules into and out of the cell c. gain a better understanding of the process of cellular respiration and photosynthe ...
Document
Document

... microtubules for cell division  The cell takes inventory and makes sure it’s ready to continue with mitosis ▪ (Performs a double check to ensure the new cells have what they need to function properly) ...
cell
cell

... The word "lysosome" is Latin for "kill body." The purpose of the lysosome is to digest things. They might be used to digest food or break down the cell when it dies. Break down food molecules, cell wastes & worn out cell parts ...
Ch. 18 Warm-Up
Ch. 18 Warm-Up

... • micro RNAs (miRNAs) and small interfering RNAs (siRNAs) can bind to mRNA and degrade it or block translation ...
Genes - sandsbiochem
Genes - sandsbiochem

... • micro RNAs (miRNAs) and small interfering RNAs (siRNAs) can bind to mRNA and degrade it or block translation ...
Cells and the Cell Theory
Cells and the Cell Theory

... • In 1838, Matthias Schleiden concluded that all plant parts were made of cells. • In 1839, Theodor Schwann concluded that all animal tissues were made of cells. • In 1858, Rudolf Virchow stated that all cells could form only from other cells. • These three discoveries led to the cell theory. ...
Morphological transformation of the parietal cell
Morphological transformation of the parietal cell

... This gland consists of an invaginated epithelium of secretory cells lining a blind cavity called acinus. The acinus connects to a small duct that, in turn, along with other acini (not shown), connects to a larger duct that empties at some point of the digestive canal. The epithelial cells that form ...
12.2   The mitotic phase alternates with interphase in - TJ
12.2 The mitotic phase alternates with interphase in - TJ

Lesson Overview Homeostasis and Cells
Lesson Overview Homeostasis and Cells

... To perform complicated tasks, many groups of tissues work together as an organ. ...
Unit 2 - Cells and Body Systems 1.0 Characteristics of Living Things
Unit 2 - Cells and Body Systems 1.0 Characteristics of Living Things

... Unit 2 - Cells and Body Systems ...
Bis2A 7.1 Binary Fission
Bis2A 7.1 Binary Fission

... other life forms, these organisms have one key evolutionary driver: to make more of themselves. Cells grow, duplicate all major cellular constituents, like DNA, ribosomes agella, etc. then divide into two identical daughter cells. This process is called binary ssion and is depicted in Figure 1 bel ...
Saccharomyces cerevisiae
Saccharomyces cerevisiae

... • Physiological response (output) ...
Intro to Cell Vocabulary - Hudson Falls Middle School
Intro to Cell Vocabulary - Hudson Falls Middle School

... they don’t have a job they are called “undifferentiated”. Another word for getting a job is specialization. ...
Name Period ______ Section 3: Eukaryotic Cells: The Inside Story
Name Period ______ Section 3: Eukaryotic Cells: The Inside Story

... Name ________________________________ Period __________ Section 3: Eukaryotic Cells: The Inside Story (p. 68) 1. What two things helped scientists see more details in cells? _____________________________________________________ _____________________________________________________ Holding It All Tog ...
Unit-2-Status-Updates-2015
Unit-2-Status-Updates-2015

... For this activity you will focus on the most important details about each of the cell parts and contributors to the Cell Theory. First, think of one key word to associate with the topic; this should be some sort of mind-jogger. Then, using a bit of imagination, create a status update that could have ...
< 1 ... 923 924 925 926 927 928 929 930 931 ... 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