Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 10.2, Problem 3R
Summary Introduction
To review:
The production of adenosine triphosphate (ATP) through cyclic electron transport in photosystem I.
Introduction:
Photosystem I is the second photosystem involved in the plants and other photosynthetic organisms. This consists of an integral membrane protein complex that produces ATP in the presence of light.
The carbon fixation step of the photosynthesis requires more ATP than the nicotinamide adenine dinucleotide phosphate (NADPH). Cyclic electron transport chain associated with photosystem I produce sufficient ATP required for carbon fixation.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
How can a proton gradient be created in cyclic photophosphorylation in photosystem I ?
Which photosystem is involved in cyclic photophosphorylation?
In cyclic photophosphorylation in photosystem I, ATP is
produced, even though water is not split. Explain how the process
takes place.
Chapter 10 Solutions
Life: The Science of Biology
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Melvin Calvin and Andrew Benson determined the steps in the light-independent reactions of photosynthesis by exposing the green alga Chlorella to CO2 labeled with the radioisotope carbon 14. By looking at which compounds the C14 ended up in, they were able to identify all intermediates in this cyclic pathway. Why did they predict correctly that the same set of intermediates would be formed in the light reaction in land plants?arrow_forwardIn photosystem I, how can a proton gradient be formed during cyclic photophosphorylation?arrow_forwardWhat are the two places where light energy is required in the light reaction of photosynthesis? Why must energy be supplied at precisely these points?arrow_forward
- Which of the mechanisms for dissipating light energy shown in Fig. would best protect the photosystems from excess light energy?arrow_forwardHow does photosystem I reduce NADP+ ?arrow_forwardWhat is implied about the energyrequirements of photosystems I and II by the fact that there is a difference in the minimum wavelength of light needed for them tooperate (700 nm for photosystem I and 680 nm for photosystem II)?arrow_forward
- What is the relationship between the energy content of a photon and the wavelength of light? How does the wavelength of light determine whether it will stimulate photosynthesis? How do the absorbance properties of photosynthetic pigments determine the direction in which energy is transferred within a photosynthetic unit?arrow_forwardwhat is the process called that provides the energy to pump protons during the light dependent reactions of photosynthesis? which direction are protons pumped?arrow_forwardThere are two photosystems ( I and II) involved in the light-dependent reactions of photosynthesis. What is the functional difference between these two photosystems?arrow_forward
- What are the processes of the photochemical stage of the photosynthesis process?arrow_forwardName the electron carriers that transport electrons from photosystem II to photosystem I. Which ones contain metal atoms, and which do not?arrow_forward1) The light reactions begin with sunlight striking a photosystem. Which photosystem is this and what happens to the electrons there? 2) What happens to this first photosystem to prepare it to become activated by additional sunlight? 3) Why are there two different photosystems in the light reactions. 4) Where do these electron reside at the end of the Calvin Cycle (dark reactions)?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningConcepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Photosynthesis & Respiration | Reactions | Chemistry | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=3XIyweZg6Sw;License: Standard YouTube License, CC-BY