• 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 Model
Cell Model

... 2. All organelles must be clearly labeled or student must provide a key/legend with a map or codes. ...
3-Cell - Discovery
3-Cell - Discovery

... organisms similar to bacteria Eukaryotes though to have evolved through symbiosis with prokaryotes (mitochondria have their own DNA and membranes--they could have originally been symbionts inside another cell!) ...
File
File

... 4) A mitochondrion contains two distinct internal compartments so that the reactions of cellular respiration occur in separate locations. Explain the structure and function of the following mitochondrial components: a) cristae: ...
Cell Structure & Function
Cell Structure & Function

... Some are unicellular, but most are multicellular Most complex type of cell ...
Biology EOC Review - Dr. Annette M. Parrott
Biology EOC Review - Dr. Annette M. Parrott

... Diploid – having two sets/copies of chromosomes (2n) – body cells – one set is maternal and one is paternal The cell cycle – Interphase (G1, S, G2) – growth -- Mitosis – cell division Mitosis creates 2 identical diploid cells and is for the purpose of tissue repair and growth DNA condenses to form c ...
Exercise 8
Exercise 8

... In many organisms, there is development of both a larval stage and an adult stage, each specialized for different functions. Larvae are often specialized for consumption of resources to facilitate growth, dispersal to new positions within the environment, and/or evasion or survival of predation. Adu ...
The Cell Membrane
The Cell Membrane

... The parts of a cell work together to carry out all of the functions of life.  If any of those parts change or malfunction, the entire system may not work as well, or at all.  Every cell part plays an important part ...
Radiate Animals Phylum Cnidaria Phylum Ctenophora Radiate
Radiate Animals Phylum Cnidaria Phylum Ctenophora Radiate

... Zygote develops into a PLANULA LARVA which swims around and then settles to form the polyp form ...
Chapter 23
Chapter 23

... with each division making the cells smaller and smaller. 7. Distinguish between a morula and a blastocyst. (p. 880) A morula is a solid ball of sixteen cells that occurs after about three days. A blastocyst is the hollow ball that was formerly the morula, which the embryo is eventually developed fro ...
Summary - Nmt.edu
Summary - Nmt.edu

... and protein found throughout the cytoplasm. Proteins are assembled on ribosomes. Eukaryotic cells contain an internal membrane system known as the endoplasmic reticulum, or ER. The ER is where lipid components of the cell membrane are assembled, along with proteins and other materials that are expor ...
ExamView - HBIO-CW-CellBiology2014.tst
ExamView - HBIO-CW-CellBiology2014.tst

... Identify the choice that best completes the statement or answers the question. 1. Hooke’s discovery of cells was made observing a. living algal cells. b. living human blood cells. c. dead plant cells. d. dead protist cells. 2. The smallest units of life in all living things are a. cells. b. mitochon ...
Cells - Zanichelli online per la scuola
Cells - Zanichelli online per la scuola

... hairlike structures projecting from the surface. They help bacteria adhere to other cells. Cytoskeleton: system of protein filaments that maintain cell shape and play roles in cell division. ...
Cell Transport
Cell Transport

...  What will occur if a cell is placed in a hypotonic solution?  Water will enter it  Animal cells will rupture ”lysis”  Plant, fungi, bacteria cells remain about the same size. Why?  What is a “hypertonic” solution?  Hypertonic: a solution that is MORE concentrated than the cell  What will oc ...
Matching Cell Parts Name: FI Bio Date: 2013
Matching Cell Parts Name: FI Bio Date: 2013

... around the cell B. This organelle provides energy for the cell C. These organlles contain digestive enzymes that break down unnecessary material in the cell D. Although its function varies it can play a role in the production of lipids and steroids, the breakdown of lipid-soluble toxins, or calcium ...
Ribosomes
Ribosomes

... break down food, waste and worn out organelles.  Lysosomes also help break down bacteria and viruses.  In our factory, school, and sports team analogies, our lysosomes could be represented by our building custodians. A very important, but underappreciated job. Next time you see a custodian, be sur ...
The Respiratory System Dr.Muna Zuhair Lecture 3 Alveoli: Are sac
The Respiratory System Dr.Muna Zuhair Lecture 3 Alveoli: Are sac

... 4. Alveolar macrophages: These cells are found within the interalveolar septum and are often seen on the surface of the alveoli.These cells also called Dust cells they often contain phagocytosed materials, particularly inhaled carbon particles, they are also important defense mechanism against inhal ...
Biosensors as alarm systems for drinking and
Biosensors as alarm systems for drinking and

... and bacterial cell systems change in a substance-specific way. Both measuring meth- ...
File - Kessler`s Science Class
File - Kessler`s Science Class

... A. species, genus, family, order B. phylum, class, genus, order C. class, order, genus, species D. phylum, order, species, family 3. Mushrooms, bread molds, and yeasts are classified together in the fungi kingdom. Specific characteristics are used to classify these organisms. Which of the following ...
Cell Membrane and Organelle Webquest
Cell Membrane and Organelle Webquest

... Cell Membrane and Organelle Webquest Name Using the websites listed, answer the following questions. Website #1: http://www.biologymad.com/cells/cellmembrane.htm 1. What invention came along that enabled us to better see the cell membrane? 2. What are the two parts (list the first two listed) of the ...
Cell Model You are to produce a model of a Plant Cell OR an Animal
Cell Model You are to produce a model of a Plant Cell OR an Animal

... micrometers in thickness and, due to its rigid shape, it also gives plant cells a defined shape. The cell wall is the reason for the difference between plant and animal cell functions. Because of its rigid structure, plant cells do not have the opportunity to develop nervous systems, immune systems ...
7.2 - Cell Structure - Office of Instructional Technology
7.2 - Cell Structure - Office of Instructional Technology

... from sunlight and convert it into food that contains chemical energy in a process called photosynthesis. Cells of plants and some other organisms contain chloroplasts, which contain chlorophyll. ...
AP Biology - gwbiology
AP Biology - gwbiology

... Facilitated diffusion occurs without the use of energy because it is spontaneous when materials travel down a concentration gradient. In active transport, the materials are shifted up a concentration gradient, requiring energy to push against the gradient. 14. Define and contrast the following terms ...
Turgor Pressure Pages 32
Turgor Pressure Pages 32

... higher than pressure inside. Water molecules will enter the cell by osmosis. Water fills the vacuole and cytoplasm causing swelling. This water will push against the cell wall. This outward pressure is known as turgor pressure. Questions - Turgor Pressure 1) When the cell fills with water, what happ ...
PRESS RELEASE “Protein-engineered cages aid studies of cell
PRESS RELEASE “Protein-engineered cages aid studies of cell

... Carbon monoxide (CO) plays an important role in cell functions, by signalling responses that counteract inflammation, and cell growth and death. As a result, researchers have been in pursuit of molecules that release CO into cells in order to study biological responses. Now Takafumi Ueno and colleag ...
Influenza_H5N1
Influenza_H5N1

... avian flu; a disease that had hitherto only produced minor sickness. The disease that materialized was capable of rapidly killing poultry and required the culling of millions of animals to contain the spread of the disease. Hong Kong culled its entire domestic population. Since then, hundreds of out ...
< 1 ... 797 798 799 800 801 802 803 804 805 ... 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