Describe the Krebs cycle, using the following terms. Pyruvate
ATP
Acetyl Group
Carbon Dioxide
NAD+ and NADH
Acetyl CoA (Coenzyme A)

Which group of chordates does  notpossess true backbones?                 a.  birds      b.  frogs and toads      c.  lampreys      d.  crocodilians

Which statements correspond to cellular respiration? co2 diffuses passively into the cell. co2 diffuses passively out of the cell. co2 must be pumped out of the cell. o2 diffuses passively when produced inside the cell. o2 diffuses passively when converted to co2. o2 is pumped in and forces co2 out.

What is the 77 element on the periodtic table