A chemist synthesizes glucose (C6H1206) in which the oxygen atoms in the glucose are the isotope 180. If a person were to eat this glucose and metabolize it completely by aerobic cellular respiration, where would the Oxygen-18 end up? Assume all other oxygen atoms are the lighter isotope (160). O Exhaled, in carbon dioxide. Exhaled, in oxygen. In their perspiration (i.e. in water). o Stored in triglycerides. O In the liver, as lactic acid.
Which is correct about photosystems? Electrons from chlorophyll transfer to a primary electron acceptor. As electrons move from one pigment to another, protons are pumped. O Photosystem I can transfer electrons directly to NADP+. The light-harvesting complex uses light energy to make ATP from ADP + Pi. In the reaction-center complex, NADPH is oxidized to replenish lost electrons.
A dried piece of wood is mostly cellulose. Where did most of the dried wood's mass come from? Organic nutrients in soil. Photons in light from the sun. Electrons in water. O Gas in the atmosphere.
Cells maintain a higher concentration of Na+ ions on the outside of cells, and K+ on the inside. This is an example of: O Passive transport. O Facilitated diffusion. O Phagocytosis O Active Transport O Osmosis