Carbon monoxide is a dangerous molecule to inhale. In your blood stream, carbon monoxide can get into your cells and bond tightly with iron, a co-factor of an important enzyme in the production of ATP. Without this enzyme function ATP cannot be formed. Why can’t the enzyme function? Answer- A. The enzyme substrate complex cannot be formed. B. The carbon monoxide prevents oxygen from getting into the lungs. C. It still can, once it causes the carbon monoxide to undergo a reaction.

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of plants’ stems. which is most likely to result in the greatest amount of error in their scientific experiment? a.one student measures the plant stem widths by using calipers. the other student measures the widths of the same plant stems again by using a different pair of calipers. b.one student measures the plant stem widths by using calipers. the other student types the measurements as they are taken into a computer spreadsheet. c.one student weighs liquids for the experiment by using a calibrated scale. the other student weighs liquids for the experiment by using a different calibrated scale.