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Chapman Cellbio homework 1

Chapman Cellbio homework 1 - Corey Schultz 10423538 BIOL...

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Corey Schultz 10423538 BIOL 3510 Homework Assignment #1 1.1. Compare and contrast the structures and features of the chloroplast and the mitochondrion. Chloroplast : Chloroplasts convert light energy into energy usable by the plant cell in their thylakoid stacks. They are thought to have been, at one time, a completely separate organism that formed a symbiotic relationship with the first autotrophic cells. They have their own DNA and, the entire structure is surrounded by its own membrane. Chloroplasts only exist in photosynthetic organisms. Mitochondrion: Mitochondria are often referred to as cellular power plants because they produce the ATP used by the cell for energy. Unlike chloroplasts, mitochondria are present in practically all eukaryotes, and do not convert sunlight into usable energy. In plant cells, ATP is produced in mitochondria and chloroplasts. Like choloroplasts, mitochondria possess their own membrane and genome and also likely were once bacteria that formed a symbiotic relationship with eukaryotic ancestors. 1.2. Draw and label the compartments in a “typical” animal cell. What components of animal cells are also found in plant cells?
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Corey Schultz 10423538 1.3. What characteristics make a good model organism for the study of cell biology? For the study of prokaryotes the organism should grow easily in a culture, copy well in variable chemical conditions, and reproduce rapidly. For the study of Eukaryotes an organism is ideal that: reproduces rapidly, is not exceptionally complicated, and grows well under laboratory conditions.
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