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Science 8 Questions 1. What does Organelle mean? 2. What is
Science 8 Questions 1. What does Organelle mean? 2. What is

... 19. What is the job of cilia and flagella? 20. What is the difference between cilia and flagella? 21. What cells have a cell wall? 22. What is the job of the cell wall? 23. What is the job of chloroplast? 24. What is the job of the vacuole? 25. How do plant and animal cells differ in regards to vacu ...
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... contains the __________________, which is a gelatin-like aqueous fluid. The cytoplasm contains multiple cell parts known as ____________________________. Organelle means “little organ”, and similar to the organs in your body, they work together to aid in the survival of the cell. Each organelle has ...
Engage students to continuously learn, question, define and solve
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... Prokaryotic cells have no nucleus or membrane bound organelles, only ribosomes, a cell wall and a loop of DNA. Eukaryotic cells are larger and more advanced, having a nucleus, ER, golgi, etc. Viruses are not classified as cells. They have only a protein coat and a piece of DNA or RNA. They are unab ...
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7th Grade Life Science: Activity Outline

... such as obtaining oxygen, acquiring food, and removing wastes. Cells contain organelles that have very specific functions, similar to the organs in your body. All cells have a cell membrane, which forms a barrier to separate the cell from its environment. This membrane controls what substances can m ...
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... 3. Nucleus of protozoa. Nucleus is the seat of control of all the vital activities of the protozoan body. The nuclei of Protozoa exhibit a greater variety of size, shape and structure than the nuclei of Metazoan. The nucleus of protozoa has a nuclear membrane, nucleoplasm, oxychromatin, basichromat ...
6. The Cell membrane - NCEA Level 2 Biology
6. The Cell membrane - NCEA Level 2 Biology

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Osmosis Virtual Lab Logon to http://www.glencoe.com/sites

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Cell Theory

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Cell organelle Notes - Warren County Schools
Cell organelle Notes - Warren County Schools

... phospholipids and embedded proteins. Color and label the cell membrane tan. Plant cells have an additional layer surrounding them called the cell wall. The cell wall is made of nonliving material called cellulose. Color and label the cell wall brown. The centrosome (also called the "microtubule orga ...
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Cells and Their Organelles The cell is the basic unit of life. The

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What is a stem cell?

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... Review notes to find areas of misunderstanding for test review Test review What do you need to study the most? Make two T-chart that identifies the differences between 1) prokaryotes and eukaryotes, and 2) plant cells and animal cells Question/Answer in class discussion (verbal) I can describe the p ...
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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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