Can electrons jump up and down orbitals?
Yes, when an electron is excited it has the ability to jump up and orbital level. When this excited state ends the electron falls back down to the orbital below.
At the end of the Kreb's cycle how many ATP molecules have been made?
2 ATP molecules are made
Please state the origin, insertion, and action of the biceps brachii muscle?
Origin: Scapula Insertion: Radius Action: Flex the arm (weakly)