Jason, a 12-year-old boy, was awakened suddenly by a loud crash. as he sat up in bed, straining to listen, his fright was revealed by his rapid breathing (hyperventilation), a breathing pattern effective in ridding the blood of co2. at this point, was his blood ph rising or falling?

The pH of blood remains same...

Explanation:

That's because of the action of Bi-Carbonate buffer present in our blood. when the CO2 starts to dissolve the pH of blood starts decreasing but then he removal of Carbonic Acid from blood by neutralization process render the pH of blood still at standard range.

The vice versa of above happens if the pH start to rise rapidly.

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.

the answers are as following:

1. c. double helix, nucleosome, coil, supercoil, chromosome

2. b. g2 phase, preparation for mitosis

3. d. interphase consists of the g1, s, and g2 phases

4. c. metaphase

5. a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set