How many turns of the Calvin cycle are needed before one G3P leaves it?

1. Each turn fixes only one carbon dioxide molecule. 2. G3P carries three carbons, so three fixations are needed to release one. 3. After three turns of the cycle, a three-carbon molecule of G3P leaves the cycle to become part of a carbohydrate molecule. 4. The remaining G3P molecules stay in the cycle to be regenerated into RuBP. 5. Six turns would be needed for a full glucose, since glucose takes two G3P. _Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 8 'Photosynthesis', sections 8.1-8.3_