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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3A The Structure of Cells Monday‚ September 30‚ 2013 • Cytology ○ Cyto = cell ○ Logos = study of • Background ○ 1665 Robert Hook’s Micrographia § Was studying cork cells ○ 1833 R. Brown § Discovered nucleus ○ 1838 M. Schleiden § Said that all plants consist of cells ○ 1839 T. Schwann § All animals consist of cells ○ 1855 Virchow § Cells come only from preexisting cells • The Cell Theory ○ Cells are the structural units of all living things
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energy to make an organism out of small cells. ~A small cell has a larger surface area-to-volume ratio than a large cell. Small cells require less oxygen than large cells. 7. Ribosomes are found on the surface of this structure. Central Vacuole Rough ER Chloroplasts ~Golgi Bodies 8. The function of the nucleus is to produce proteins. contain the cytoplasm. ~contain and replicate DNA. add sugars to proteins. 9. The function of ribosomes is to synthesize RNA. DNA.
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chloroplasts and mitochondria because they require both functions. 9. Possible student answer: One function of lysosomes is to remove debris that might clutter a cell. This is analogous to the work a cleanup crew in a factory might perform. 10. A plant cell has cell walls and chloroplasts‚ structures not found in animal cells. An animal cell has the unique structures of lysosomes. Section Review 7-3 ANSWER KEY most of the dribbling and another player to do most of the rebounding.
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phase followed by an infectious phase. The replicative phase involves a non-motile bacterium‚ with a minimal or absent toxicity. Once inside the macrophage‚ before it can begin its replicative phase‚ Legionella pneumophila forms a membrane bound vacuole that protects the bacterium. This structural change creates a physical barrier
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Test #1 Review: Chapters 1‚ 2‚ & 3 Chapter 1. Describing life and science 1. Which is the correct sequence for levels of biological organization within an organism? • Atom-molecule-organelle-cell-tissue 2. Which is the correct sequence for levels of biological organization occurring beyond the individual? • Population-community-ecosystem-biosphere 3. To be considered a living organism‚ the organism must consist of • one or more cells 4. Which is not a required characteristic of
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organelle w/ a network of membranes that produces many substances k. Golgi apparatus- receives proteins and other newly formed materials from the ER‚ packages them and distributes them to other parts of the cell l. Vacuoles stores water food and materials m. Lysosomes- saclike‚ brakes down large food particles into smaller ones
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