If Plants Are Grown in the Light with CO₂ Containing

question 39

Multiple Choice

If plants are grown in the light with CO₂ containing a radioactive isotope of oxygen (¹⁸O) ,subsequent analysis will show that ¹⁸O incorporated in organic molecules first appears in

• A)the thylakoid space.
• B)the thylakoid membranes.
• C)the stroma.
• D)mitochondria.