The Enzyme Ribulose Bisphosphate Carboxylase (Rubisco) Normally Adds Carbon Dioxide

question 66

Multiple Choice

The enzyme ribulose bisphosphate carboxylase (Rubisco) normally adds carbon dioxide to ribulose 1,5-bisphosphate.However, it will also catalyze a competing reaction in which O₂ is added to ribulose 1,5-bisphosphate to form 3-phosphoglycerate and phosphoglycolate.Assume that phosphoglycolate is a compound that cannot be used in any further reactions.If O₂ and CO₂ have the same affinity for Rubisco, which of the following is the lowest ratio of CO₂ to O₂ at which a net synthesis of sugar can occur?

• A)1:3
• B)1:2
• C)3:1
• D)2:1

---

Definitions:

Predefined Shapes

Built-in geometric forms or figures that can be quickly inserted and used in software applications, such as word processors and graphic design programs.

Visual Interest

The aspect of a design or composition that draws the viewer's eye and makes it engaging through elements like color, shape, and layout.

Picture Effects

Digital enhancements or modifications applied to images, such as shadows, reflections, glows, or 3D effects, to improve their appearance.

Formatting Options

Tools and settings available in software applications that allow users to modify the appearance of text, documents, or presentations, including fonts, colors, and alignment.