If you expose a photosynthesizing plant to water that contains both radioactive H and radioactive O, in which of the products of
photosynthesis will the radioactive H and O show up? A) H and O both in glucose
B) H in glucose; O in glucose
C) H in water; O in glucose
D) H in glucose and water; O in O2
E) H in glucose and water; O in water and O2
In green photosynthesizing plants, photolysis occurs during the light-dependent phase. Photolysis is the splitting of the water molecule in the presence of sunlight. The oxygen atom of water molecules forms oxygen gas that is released as a by-product of photosynthesis. Photolysis also releases electrons and protons from water molecules that finally reduce the NADP into NADPH.
The light-independent phase of photosynthesis fixes reduces CO2 into glucose. NADPH serves as reducing power during the light-independent chemical reactions and therefore, the H atoms from water molecules are incorporated into glucose and water molecules formed during light-independent reactions of photosynthesis.
Energy is used up while running, and cellular respiration needs oxygen to produce more energy. Energy is used up while running, and cellular respiration needs carbon dioxide to produce more energy.
The Volumetric flask is used for preparing liquids with volumes of high precision. The Filter Flask is also known as the A Büchner flask. It is like the Erlenmeyer but this one is thick-walled and has a special arm in the side. It is used for filtering liquid.
