Multiple Choice
What is the primary difference between natural selection and artificial selection in the context of organic chemistry?
1. A Review of General Chemistry
Intro to Organic Chemistry
Struggling with Organic Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In the context of organic chemistry, why is the regeneration phase of the Calvin cycle essential?
A
It regenerates RuBP, allowing the cycle to continue and fix more carbon dioxide.
B
It regenerates glucose for immediate energy use.
C
It regenerates NADPH for use in the light-dependent reactions.
D
It regenerates ATP for energy use in the cell.
Verified step by step guidance1
Understand the Calvin cycle: The Calvin cycle is a series of biochemical reactions that take place in the stroma of chloroplasts in photosynthetic organisms. It is also known as the light-independent reactions or dark reactions.
Identify the role of RuBP: Ribulose bisphosphate (RuBP) is a 5-carbon sugar that is essential for the fixation of carbon dioxide in the Calvin cycle. It acts as a substrate for the enzyme RuBisCO, which catalyzes the first major step of carbon fixation.
Recognize the importance of regeneration: The regeneration phase of the Calvin cycle is crucial because it replenishes RuBP, allowing the cycle to continue. Without the regeneration of RuBP, the cycle would halt, and no further carbon dioxide could be fixed.
Differentiate between the options: The primary purpose of the regeneration phase is to regenerate RuBP, not glucose, NADPH, or ATP. Glucose is a product of the cycle, while NADPH and ATP are used in the cycle but are not regenerated in this phase.
Conclude the essential role: The regeneration of RuBP is essential for the continuity of the Calvin cycle, enabling the ongoing fixation of carbon dioxide and the production of glucose, which is vital for the energy needs of the plant.
2:18mWatch next
Master Organic molecules in your everyday life. with a bite sized video explanation from Johnny
Start learningRelated Videos
Related Practice
Intro to Organic Chemistry practice set
Problem sets built by lead tutorsExpert video explanations