• 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
Membranes and cell structure
Membranes and cell structure

... Which organelle is the site of membrane and secreted protein synthesis in a cell? a. Nucleus b. Lysosome c. Golgi d. Mitochondria e. Endoplasmic reticulum ...
marking scheme
marking scheme

... b) Emulsification of fats; to increase the surface area for reaction of lipase; provide alkaline PH; for action for pancreatic amylase; lipase; Trypsin; / Neutralize acidic chyme from stomach; to provide alkaline medium for efficient enzymatic activity; ...
AUS Biological Sciences 8: Science Unde
AUS Biological Sciences 8: Science Unde

... Students know that cells are the tiny living units that make up an organism. Students compare and contrast the structure of a typical animal cell with the structure of a typical plant cell. x Students are aware that cells contain a cell nucleus (except red blood cells) and structures called organell ...
Quantifying cell-virus interactions using NanoTracker™ optical
Quantifying cell-virus interactions using NanoTracker™ optical

... The force and time scale associated with bond rupture or protein rearrangement is known to be a dynamic property that depends on the force loading rate applied [5]. If the force on a molecule is applied slowly, there is more time for the thermal fluctuations to allow rearrangement and bond rupture, ...
Plant Cell “Penny Pitch” game
Plant Cell “Penny Pitch” game

... • Yarn (three colors- one for the cell membrane, ore for the endoplasmic reticulum, one for the vacuole) • Green fabric, felt or paper than can be cut into chloroplasts • Other colors of fabric (or paper) scraps with which to make other organelles • Objects to pitch—such as pennies or bean bags, dep ...
Cell Notes - gst boces
Cell Notes - gst boces

... Mitosis- the process of cell division. ...
Cell City - TeacherWeb
Cell City - TeacherWeb

... Cell City Grading Rubric All 12 organelles represented _________(25) Each structure in your cell city must be clearly identified and paired with a specific cell structure. (Example: City Hall/Nucleus) This is to be written on the poster board next to the specific structure. Plasma membrane Nucleus N ...
The major organs involved in the cardio
The major organs involved in the cardio

... cells by lymphocytes B Carbon dioxide is transported to body cells in the form of lactic acid. C. Oxygen is transported to body cells in theform of oxyhemoglobin by blood ...
Cells Notes Topic 2.2 and 2.3 classroom notes
Cells Notes Topic 2.2 and 2.3 classroom notes

... • The nucleoid region – Is non-compartmentalized and contains a single, long, continuous, circular thread of DNA – In addition to the bacterial chromosome, bacteria may also contain plasmids • These small, circular, DNA molecules are not connected to the main bacterial chromosome. • Replicates indep ...
Characteristics of living things
Characteristics of living things

... use energy to carry out life’s activities. Metabolism – is the total of all chemical ...
4-invasive enteritis-(1, 152) final
4-invasive enteritis-(1, 152) final

... Mucus layer and gut motility (peristalsis)→ prevent adhesion. The glycocalyx (mucin rich layer) covers the epithelial cells surface→ entrap invading bacteria. Shedding of mucosal epithelium lining the GIT. Bile secretion prevent the growth of non-enteric bacteria and enveloped viruses. M cells (micr ...
Cell Organelles
Cell Organelles

... Nucleus Nucleus contains chromosomes and genes and therefore it is called as controlling center of the cell. Generally there is a single nucleus per cell that is spherical or oval in shape. It is enclosed in a double membrane and communicates with the surrounding cytosol via numerous nuclear ...
Basic Structure of a Cell ppt questions-1
Basic Structure of a Cell ppt questions-1

... 96. ER is connected to what 2 other membranes? 97. ER functions in the _______________ of cell products & in _____________ of these products. 98. Name the 2 kinds of ER. 99. Why is rough ER rough? 100. Proteins made by rough ER are for _____________ out of the cell. 101. Proteins are made in _______ ...
8_CellStructureNOrganellesPP
8_CellStructureNOrganellesPP

... – Nickname: The shippers – Function: packages, modifies, and transports materials to different location inside/outside of the cell – Appearance: stack of pancakes – Located: Cytoplasm – Plant and animal cells ...
Chapter 3 The Basic Structure of a Cell
Chapter 3 The Basic Structure of a Cell

... Basic Structure of a Cell ...
cells - Denton ISD
cells - Denton ISD

... Number the organelles on your plant and animal cell sheets as show on the overhead screen Do not number amytoplast or centrosome on the plant cell –( draw a thin line through both of them) Go to 2 fresh pages of your notebook (left and right) Title the page “Animal Cell Organelles” On the left, list ...
Cell Transport
Cell Transport

... concentration across a semi-permeable membrane. ...
Unit 4 Review Basketball
Unit 4 Review Basketball

... Water. Kelly decides to drink ocean water deciding that although it tastes salty, it doesn’t taste terrible. Pat, on the other hand, decides to drink coconut milk. As the day wears on, Kelly drinks more ocean water and complains of ...
topic-4.doc
topic-4.doc

... o Golgi complex: flattened sacs usually near nucleus, stacked  form secretory vesicles which transport material within cell or out of cell o lysosomes: vesicles containing digestive enzymes (segregated to protect cell)  can break down molecules or destroy invading bacteria o vacuoles: space or cav ...
AP Biology Review #2 Chapters 6 – 8 and 11 – 12
AP Biology Review #2 Chapters 6 – 8 and 11 – 12

... cell The sites of cellular respiration Single-membrane structures in the cell that perform many metabolic functions and produce hydrogen peroxide in the process Large membrane-bound structures that contain hydrolytic enzymes and that are found predominantly in animal cells Which of the following mol ...
Cell Biology Learning Framework
Cell Biology Learning Framework

... Compare and contrast organization of the mitotic spindle in animal, fungal, and plant cells and discuss the evolutionary and functional relevance. Explain how a cell’s interactions with its environment can influence cell morphology, behavior, division, or survival. Compare and contrast the molecular ...
Neoplasia lecture 7
Neoplasia lecture 7

... • APC is an important component of these destruction complexes • Loss of APC .. B catenin not degraded and WNT pathway activated without the WNT • This leads to transcription of growth promoting genes cyclin D1 ,MYC and transcription regulators: TWIST AND SLUG that repress e cadherin and thus reduce ...
02 Mitosis and Cytokinesis
02 Mitosis and Cytokinesis

... During mitosis, when the nucleus divides, the two chromatids that make up each chromosome separate from each other and move to opposite poles of the cell. This is shown in Figure 1.1. Mitosis actually occurs in four phases. The phases are called prophase, metaphase, anaphase, and telophase. They are ...
Cellular Biology
Cellular Biology

... gradient as a source of energy to transport molecules or ions across a cell membrane • E.g. hydrogen-sucrose pump • A pump actively exports H+ against gradient usually primary active transport, then H+ sucrose symporter can use H+ gradient to transport sucrose against a concentration gradient into t ...
Characteristics of Eubacteria
Characteristics of Eubacteria

... B. They thrive in extreme environments and lack a nucleus. C. They contain cells that have a nucleus and lack a cell wall. D. They are multicellular and use chlorophyll to ...
< 1 ... 779 780 781 782 783 784 785 786 787 ... 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