Which of the Following Is Not True Regarding the C₄

question 25

Multiple Choice

Which of the following is not true regarding the C₄ pathway?

• A) The C₄ pathway allows for the concentration of CO₂
• B) the K_M for CO₂ is lower with Rubisco than for phosphoenolpyruvate carboxylase
• C) Rubisco also has an oxygenase activity that appears to be a wasteful process in terms of energy production
• D) The C₄ pathway alleviates some of the wastefulness of the oxygenase activity of Rubisco by concentrating CO₂ in the interior of the plant.

---

Definitions:

Variable Manufacturing Costs

Expenses that vary proportionally with production volume, such as materials and labor.

Variable Costing

A costing method where only variable production costs are included in product costs, with fixed overhead costs treated as period expenses.

Direct Materials

Raw materials that can be directly traced to the manufacturing of a product and are a significant portion of the production cost.

Variable Costing

An accounting method that includes only variable production costs in the cost of goods sold and treats fixed costs as period costs.