1. Can be both A&D because one is the right pulmonary artery and the other is the left pulmonary artery. Each providing for a separate lung.
Fruit flies share 75% of the genes that cause diseases with humans, so scientists can learn about human genetics by studying fruit fly genetics.
Answer:
(a) Act as a membrane transport protein
Explanation:
Bacteriorhodopsin is a membrane protein that serves as a proton pump. It is mainly present in archaebacteria such as <em>Halobacterium halobium</em>. Bacteriorhodopsin is a light drive proton pump which means that it uses the energy from solar radiation to serve as a proton pump.
It has seven hydrophobic alpha-helices that span the lipid bilayer and the light-absorbing retinal pigment is buried in the membrane. The function of Bacteriorhodopsin is to generate the proton gradient for ATP synthesis by releasing protons at the outer surface of the membrane.