4. What organisms are classified as prokaryotes? 5. Know all the organelles we covered and their functions. Be able to predict what a cell could NOT do if that organelle was damaged or missing. 6. Which organelle removes sick and crippled cells and can even commit cell suicide? 7. Which types of cells would have large numbers of mitochondria? Explain. 8. What kinds of cells have cell membranes? 9. Which organelles do the following: • Produce proteins • Produce ribosomes
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Prokaryotes are organisms whose cells lack a nucleus and membrane-enclosed organelles. Most prokaryotes are small‚ single-celled organisms that have a relatively simple structure. Prokaryotic cells are surrounded by a plasma membrane‚ but they have no internal membrane-bound organelles within their cytoplasm. The absence of a nucleus and other membrane-bound organelles differentiates prokaryotes from another class of organisms called eukaryotes. Prokaryotes and Eukaryotes are similar in their chemical
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Cytoplasm (or Cytosol). This is the solution within the cell membrane. It contains enzymes for metabolic reactions together with sugars‚ salts‚ amino acids‚ nucleotides and everything else needed for the cell to function. Nucleus. This is the largest organelle. Surrounded by a nuclear envelope‚ which is a double membrane with nuclear pores - large holes containing proteins that control the exit of substances such as RNA from the nucleus. The interior is called the nucleoplasm‚ which is full of chromatin-
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Mia Librie Period 3 1/3/15 Animal Cell There are two types of cells that exist. Prokaryotic cells are simple cells that have few organelles. These cells don’t have a nucleus‚ but do have DNA. The DNA acts as a sort of “blueprint” for growth and reproduction in the cell. Prokaryotes are things like Bacteria. Eukaryotic cells are a lot more complex than a prokaryotic cell. These cells are able to convert food to energy‚ break down waste products‚ digest food‚ and assist with reproduction of
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It is a double membrane bound organelle. It has the outer membrane and the inner membrane. The membranes are made up of phospholipids and proteins. b. It is located in eukaryotic cells c. Mitochondria is found in plants & animals. d. Mitochondria are structures within cells that convert the energy from food into a form that cells can use. The organelle that is being referred to in this description is mitochondria. The most important function
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Biology Cell theory: The basic unit of structure and function of all living organisms is the cell. Virchow’s theory: All cell arise from pre-existing cells by cell division. | Animal cells | Plant cells | Plasma membrane | Yes | Yes | Nucleus | Yes | Yes | Cytoplasm | Yes | Yes | Mitochondria | Yes | Yes | Golgi apparatus | Yes | Yes | Centriole | Yes | No | Cell wall (joined to other cells by plasmodesma) | No | Yes | Large central vacuole | No | Yes | Chloroplasts
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The Organelle Poster Project Choose One Organelle From The Following List. mitochondria vacuole nucleus ribosome cytoskeleton plastids-chloroplast cell membrane cell wall golgi apparatus centriole lysosome endoplasmic reticulum (SER and RER) Draw The Organelle. Clearly identify the name of the organelle on your poster. Using the diagrams in your book and any other resources (book‚ encyclopedia‚ web site‚ etc.) draw your organelle. Show as much detail
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cell is quite different. An animal cell is a round‚ uneven shape‚ whereas the Plant cell has an affixed shape. They have a more of a rectangular shape. Chloroplast‚ Vacuole and the Cell wall are only found in Plant cells. The Chloroplast is the organelle for the whole system of Photosynthesis. Chloroplasts are found in mesophyll cells (which are found in the leaves) of green plants. They convert light into energy; therefore the energy is the plant’s food. The chemical in Chloroplast is called ‘Chlorophyll’;
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Class IX Biology Chapter 1: Fundamental Unit Of Life HOTS Questions Q 1. Identify the following cell organelle. What role does it play in cellular respiration? (2 marks) Q 2. Why an egg shrinks when placed in concentrated salt solution? (2 marks) Q 3. On what basis endoplasmic reticulum has been differentiated into two types? (2 marks) Q 4. Which cell organelles resemble following? 1. Kitchen of plant 2. Storage organ 3. Brain Q 5. A boiled egg was deshelled and then kept in water. What will
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nucleus in which the chromosomes are found. There is also another type of cell which is a called a prokaryotic cell‚ this cell lacks a membrane bound nucleus. The difference between these two cells is that Eukaryotic cells contain membrane-bound organelles‚ such as the nucleus‚ while prokaryotic cells do not. Cells are the main building blocks of all living organisms. The human body is collected of tons of cells which provide structure for the body‚ take in nutrients from food‚ transform those nutrients
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