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... • are generally larger and more complex then prokaryotic cells –multicellular • have membrane-bound organelles • DNA is linear • Ribosomes are large • Moves by waving cilia or flagellae • Cell division by mitosis or meiosis ...
Cell Organelles - hrsbstaff.ednet.ns.ca
Cell Organelles - hrsbstaff.ednet.ns.ca

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Chapter 4: Ecosystems - Blair Community Schools
Chapter 4: Ecosystems - Blair Community Schools

... a. aid the movement of substances that cannot pass through membrane on their own Section 2: Cell Transport Equilibrium: Concentration Gradient: one area has higher concentration than another Diffusion: movement of a substance from an area of high concentration to an area of low concentration Carrier ...
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Chapter 1 Section 2 Eukaryotic Cells

... Lysosomes bump into these vesicle Enzymes digest the particles in the vesicles ...
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Wet Mount Proficiency Test 2006B Critique

... The cells are approximately 8 microns in diameter (smaller than white blood cells by about half, but larger than yeast cells). RBC possess a cell membrane, while yeast have a thick cell wall. Red blood cells are slightly larger and more uniform in shape than yeast cells. In fresh samples, RBC will b ...
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... flagellum) are projections from the cell. By repetitive beating (like a bending motion), they cause the cell to o move. Think of oars in a boat. Flagella can propel the cell by waving back and forth. If a cell is fixed in place, they can also cause water to move ...
Form and function: Cell make-up
Form and function: Cell make-up

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Which Cell Parts Can You See With the Microscope?

... Introduction: Living things are made of cells. All cells have parts that do certain jobs. Cells have an outer covering called the cell (plasma) membrane. The cell membrane controls what can enter/exit a cell. The clear jellylike material inside the cell is the cytoplasm. The nucleus is the control c ...
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generation of biological patterns and form: some physical

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Study Guide: Unit 3 – Cells and Cell Transport

... Sugar will move __________________. Protein will move _________________. OSMOSIS ( isotonic, hypertonic, or hypotonic = bonus words) *remember that the black dots cannot pass through the membrane – the open space represents water…which can pass through the membrane. 14. Draw an arrow to indicate the ...
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Lesson 6: Cell Adaptations and Unicellular Organisms (1

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... the cell. The nucleus is a large, oval structure that acts as the "brain" of the cell. Cells that have a nucleus are called eukaryotes. You can think of the nucleus as the cell's control center, directing all of the cell's activities. The nucleus is surrounded by a protective membrane called the nuc ...
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Aria Sample Prep 110210
Aria Sample Prep 110210

Intercellular junctions provide plant and animal cells with
Intercellular junctions provide plant and animal cells with

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Exam: Cells
Exam: Cells

... F. A group of organs that work together to perform a body function. G. A group of similar cells that perform a common function. H. A long, hair-like structure that grows out of a cell and enables the cell to move. I. A phospholipid layer that covers a cell’s surface and acts as a barrier between the ...
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Structure and Functions * Physiology of the Nerve

...  The type of neurotransmitter they use  The type of Receptors they have  Myelin content  Location in the nervous system –central/peripheral  These differences and others may account for different patterns of disease ...
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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.
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