A biochemist conducted an experiment to follow the movement of glucose molecules in animal cells. Glucose with radioactively lab
eled carbon atoms was added to a culture of liver cells growing in a Petri dish. Over the next 18 hours, the biochemist assessed selected biomolecules in the culture for radioactivity. Explain how adding labled glucose molecules to the culture resulted in labeled glycine and describe what happened to the labled glucose molecules during the 18-hour period.
An object with a high mass close to the Earth could be sent out into a collision course with the asteroid, knocking it off course. When the asteroid is still far from the Earth, a means of deflecting the asteroid is to directly alter its momentum by colliding a spacecraft with the asteroid.
Yes it is available. It will continue catalyzing the reactions until it becomes completely consumed. That's how enzymes work. They work and are eventually consumed in the process completely without altering the reaction in any way other than speeding it up. <span />
