photosynthesis. First‚ animal cells don’t have central vacuoles or cell walls. Cell Walls are composed of cellulose‚ hemicellulose and other material Animal cells do not have cell walls they only have a cell membrane‚ this makes their shape round/fluid they have lysosones which plants do not‚ versus the plant cell which is more angular/rigid. Plant cells have chloroplasts to convert light into energy‚ animals do not. Animal cells contain centriole‚ lysosome‚ and flagellum‚ where as most plant cells do not
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captain on a sports team because nucleus is the middle part of an object or group‚ forming the basis for its activity and growth. 2a. What is the function of lysosomes? The function of lysosomes is cellular organelles that contain acid hydrolase enzymes that break down waste materials and cellular debris. 2b. How do contractile vacuoles help maintain water balance? They help maintain water balance by contracting rhythmically pumping water out. 3a. What is the difference
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*Usually in the center of the cell. Contains the cells genetic information (DNA) 5. Vacuole- *Plant cells contain a much larger central vacuole 6. Endoplasmic Reticulum- *Modifies components of the cell membrane and some proteins. Rough ER- Contains ribosomes. Smooth ER- No Ribosomes 7. Ribosome- *Can be attached to endoplasmic reticulum (ER) or floating free in cytoplasm 8. Lysosome- 9. Golgi complex- *Proteins from the ER are sent here. The Golgi Complex is in
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engulf and breakdown foreign particles. The phagocyte detects the foreign object and moves towards it. The membrane of the phagocyte then projects out and encloses the foreign object in a vacuole. The lysosomes (powerful enzyme containing vesicles) inside the phagocyte fuse with and release enzymes into the vacuole. The enzymes breakdown the foreign object and the products are either absorbed into the cell or released. Lymphocytes produce antibodies in
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compartments within which multiple biochemical processes can proceed simultaneously and independently. The cell membrane of the plant cell has a phospholipid bilayer. Plant cells often have a central vacuole‚ which is a large membrane-bounded sac that stores proteins‚ pigments‚ and waste materials. The central vacuole‚ in most mature plants‚ occupies a major portion of the internal volume of the cell and has a phospholipid bilayer. Inside the nucleus‚ an organelle with a phospholipid bilayer that regulates
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POB II: Exam II Review Chapter 6: tour of the cell Microscopy: • Microscopes provide a window to the cell. • Most important tool in cytology • Resolution has improved understanding of cells. o Resolving power – the smallest distance between two objects that allows them to be seen as distinct objects. o Resolving power of the human eye is 0.1 mm • Light microscope – uses glass lenses and visible light to form a magnified image of an object. o Resolving power of about 100 nm (.0002 mm)
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its structure and function. 3. Describe the differences between animal and plant cells. First‚ animal cells don’t have central vacuoles or cell walls. The latter makes their shape more round/fluid‚ versus the plant cell which is more angular/rigid. Plant cells have chloroplasts to convert light into energy‚ animals do not. Animal cells contain centriole‚ lysosome‚ and flagellum‚ where as most plant cells do not. 4. Which of the following structures are present in both prokaryotic and eukaryotic
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The Cell 20% Lecture 6 – Cell Membranes Example Question 1. White blood cells are responsible for engulfing and digesting foreign objects such as bacteria and viruses. What organelle do you expect them to have a relatively large amount of? A) Lysosome B) Ribosome C) ER D) Golgi apparatus E) Mitochondria 2. 3. This type of cell junction seals cells together into watertight sheets. A) Microtubules B) Desmosomes C) Tight junctions D) Gap junctions 3. If DNA is composed of 20% thymine
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Biology: Concepts and Connections‚ 6e (Campbell) Test Bank (1) Part (1) Chapter 1 Introduction: The Scientific Study of Life 1) Which of the following statements about the leopard is false? A) Leopards are the largest cat in the genus Panthera. B) Leopards‚ like lions‚ can roar. C) Leopards prefer to eat their kill in trees. D) Leopards are well-adapted for nocturnal hunting. E) Leopards are normally solitary animals. Answer: A Topic: Opening Essay Skill: Factual
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Yr 12 Biology Summary Notes Rangitoto College 2006 STRUCTURE AND FUNCTION IN CELLS Achievement Standard 90464 – Biology 2.8 – Describe cell structure and function TYPES OF CELLS • PROKARYOTIC CELLS = more primitive‚ unicellular‚ have no organised nucleus‚ no membrane-bound organelles‚ genetic material is 1 circular DNA molecule‚ can have tiny extra rings of DNA called plasmids‚ all have cell walls e.g. bacteria and blue-green algae • EUCARYOTIC CELLS = unicellular
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