Match the metabolic activity with the organelle in which it occurs.
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Which organelles are the sites of energy-yielding reactions?
A research group has discovered an organism with cells that contain a previously undescribed organelle. Researchers perform some tests on the isolated organelle to see if it is involved in any major metabolic reactions. To do this, they incubate these organelles for a period of time and determine changes in the amount of various substances in the suspending solution. The results are shown in the table. glucose: no change CO2: increase O2: no change ATP: no change NADH: increase Based on this analysis, which metabolic process would you conclude could be taking place in this organelle? citric acid cycle glycolysis electron transport chain/oxidative phosphorylation pyruvate oxidation
Josee P.
Match each organelle with its function: - Nucleus: Compartmentalization of the chromosomes in a Eukaryotic cell; therefore the site of most RNA transcription as well as ribosome assembly. - Rough endoplasmic reticulum: Processing and lengthening of oligosaccharides proteins destined for secretion. - Smooth endoplasmic reticulum: Synthesis of secreted proteins and addition of "core" oligosaccharides. - Golgi Complex: Synthesis of secreted proteins and addition of "core" oligosaccharides. - Lysosome: Hydrolysis of macromolecules using low pH and hydrolytic enzymes. - Endosome: Sequestering and storing calcium ions (Ca2+) so that cytoplasmic concentration remains very low; also some lipid production. - Mitochondria: Aerobic metabolism. - Chloroplast: Photosynthesis. - Peroxisome: Sequestering reactions that have produced those that may be damaging to the cell and destruction of those damaging compounds.
Madhur L.
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