Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Q: When light passes from one medium to another, it changes speed.

A: When light passes from one medium to another, it changes what?
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Q: Electron transport is the final stage of aerobic respiration, when energy from the krebs cycle is transferred to atp.

A: What is the final stage of aerobic respiration, when energy from the krebs cycle is transferred to atp?
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Q: Hemoglobin is the name of the blood protein that carries oxygen from the lungs to the body's assorted tissues.

A:
What is the name of the blood protein that carries oxygen from the lungs to the body's assorted tissues?
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