Draw the following apoptotic pathway, which operates in human immune cells. a death signal is received when a molecule called fas binds its cell-surface receptor. the binding of many fas molecules to receptors causes receptor clustering. the intracellular regions of the receptors, when together, bind proteins called adaptor proteins. these in turn bind to inactive molecules of caspase-8, which become activated and then activate caspase-3. once activated, caspase-3 initiates apoptosis.
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Biology, 21.06.2019 23:50
Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?
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Biology, 22.06.2019 02:30
What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.
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Biology, 22.06.2019 09:00
The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)
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Draw the following apoptotic pathway, which operates in human immune cells. a death signal is receiv...
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