Multiple choice

The first stable product formed during the C3 cycle is _____________.

  1. ribulose bisphosphate

  2. sedoheptulose

  3. phosphoglyceric acid

  4. hexose sugar

  5. erythrose

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The first stable compound in the Calvin cycle is a 3 carbon compound (3-phosphoglyceric acid), hence the cycle is also called the C3 cycle.