When electrons flow along the electron transport chains of mitochondria, which of the following changesoccurs?
a)the ph of the matrix increases.
b) atp synthase pumps protons by active transport.
c) the electrons gain free energy.
d)the cytochromes phosphorylate adp to form atp.
e) nad+is oxidized.

If the nucleus of a cell was removed the cell wouldn’t be able to make proteins because

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.

Which layer of the eye completely surrounds the eye except for a dark, round opening called the pupil? a. sclerab. corneac. retinad. choroidthe answer is a sclera