#Question id: 598
#Unit 1. Molecules and their Interaction Relevant to Biology
Which might be a method used for distinguishing among several mechanistic possibilities in a multi-substrate reaction?
#Question id: 1040
#Unit 4. Cell Communication and Cell Signaling
Why might it be easier to determine the bacterium that caused pneumonia than one that caused a wound infection?
#Question id: 5678
#Unit 5. Developmental Biology
Following process and their mechanism during fertilization in mammals.
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a. Rheotaxis |
i.A sensing mechanism in which, the oocyte and its accompanying cumulus cells secrete molecules that attract capacitated sperm toward the egg during the last stages of sperm migration |
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b. Chemotaxis |
ii.It is a transient event, and sperm are given a relatively brief window of competence during which they can successfully fertilize the egg. |
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c. Capacitation |
iii.it is the ability to sense temperature difference and preferentially swim from cooler to warmer sites is found only in capacitated sperm. |
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d. Thermotaxis |
iv.Sperm receive long-distance directional cues from the flow of liquid from the oviduct to the uterus and they will migrate against the direction of the flow—using CatSper calcium channels to sense calcium influx and monitor the direction of the current |
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Which of the following option is correct?
#Question id: 19875
#Unit 13. Methods in Biology
#Question id: 15447
#Unit 4. Cell Communication and Cell Signaling