Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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Chapter 20, Problem 6P
Interpretation Introduction
Interpretation:
The differences and the similarities between the Krebs cycle and the Calvin cycle are to be determined.
Concept introduction:
Krebs cycle and Calvin cycle are important biochemical pathways. Krebs cycle is the sequence of reactions through which living cells generate energy during the aerobic respiration process. Calvin cycle is a part of photosynthesis, also known as the dark reactionsbecause it is independent of the sunlight, unlike the light reactions. It produces glucose by utilizing the CO2 and water and energy is supplied through ATP.
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Life requires energy. Describe the basic principles of bioenergetics in an animal cell. How is the flow and transformation of energy different in a photosynthesizing cell? Include the role of ATP and enzymes in your discussion.
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The diagram below shows a metabolic pathway that occurs in chloroplasts during
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ribulose bisphosphate (RuBP)
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1
X
HINEW
ribulose-1,5-bisphosphate
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Chapter 20 Solutions
Biochemistry
Ch. 20 - Prob. 1PCh. 20 - Prob. 2PCh. 20 - Prob. 3PCh. 20 - Prob. 4PCh. 20 - Prob. 5PCh. 20 - Prob. 6PCh. 20 - Prob. 7PCh. 20 - Prob. 8PCh. 20 - Prob. 9PCh. 20 - Prob. 10P
Ch. 20 - Prob. 11PCh. 20 - Prob. 12PCh. 20 - Prob. 13PCh. 20 - Prob. 14PCh. 20 - Prob. 15PCh. 20 - Prob. 16PCh. 20 - Prob. 17PCh. 20 - Prob. 18PCh. 20 - Prob. 19PCh. 20 - Prob. 20PCh. 20 - Prob. 21PCh. 20 - Prob. 22PCh. 20 - Prob. 23PCh. 20 - Prob. 24PCh. 20 - Prob. 25PCh. 20 - Prob. 26PCh. 20 - Prob. 27PCh. 20 - Prob. 28PCh. 20 - Prob. 29PCh. 20 - Prob. 30PCh. 20 - Prob. 31PCh. 20 - Prob. 32PCh. 20 - Prob. 33PCh. 20 - Prob. 34PCh. 20 - Prob. 35PCh. 20 - Prob. 36PCh. 20 - Prob. 37PCh. 20 - Prob. 38PCh. 20 - Prob. 39PCh. 20 - Prob. 40PCh. 20 - Prob. 41PCh. 20 - Prob. 42PCh. 20 - Prob. 43PCh. 20 - Prob. 44PCh. 20 - Prob. 45PCh. 20 - Prob. 46PCh. 20 - Prob. 47PCh. 20 - Prob. 48P
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- Modified TRUE or FALSE. Write the word TRUE if the statement is correct. If the statement is false, write the incorrect underlined word/s and indicate the correct word/s to make the statement true. During photorespiration, Rubisco acts as carboxylase that catalyzes the reaction of RuBP and oxygen to form phosphoglycolate and PGA in the chloroplast.arrow_forwardLife requires energy. In a short essay (100–150 words), describe the basic principles of bioenergetics in an animal cell. How is the flow and transformation of energy different in a photosynthesizing cell? Include the role of ATP and enzymes in your discussion.arrow_forwardModified TRUE or FALSE. Write the word TRUE if the statement is correct. If the statement is false, write the incorrect underlined word/s and indicate the correct word/s to make the statement true In the process of photosynthesis, the red wavelength is emitted in a process called as phosphorescence.arrow_forward
- Modified TRUE or FALSE. Write the word TRUE if the statement is correct. If the statement is false, write the incorrect underlined word/s and indicate the correct word/s to make the statement true. A cyclic pathway runs in Photosystem I to make ATP. Here, electrons are cycled back to photosystem I and NADPH is formed.arrow_forwardHelp is appreciated. Think of an unusual eukaryotic species in which its ATP synthase has 12 subunits for its c ring. How many ATP molecules can be produced per pair of electrons that traverse the respiratory chian starting at Complex I? A. 2 ATP/2e- B. 1 ATP/2e- C. 0.5 ATP/2e- D. 1.5 ATP/2e- E. 3 ATP/2e-arrow_forward. Discuss the similarities and differences between the Calvin cycle and the pentose phosphate pathway.arrow_forward
- Chemiosmosis. ATP synthesis in chloroplasts is usually light dependent; it does not happen in the dark. When researchers shifted isolated chloroplasts from a low pH solution to a more alkaline (higher pH) solution, ATP synthesis occurred even in the absence of light! This was an experiment used to support the chemiosmosis mechanism of ATP formation in chloroplasts. Why? What would happen if the isolated chloroplasts were shifted to a lower pH solution? What would be the results if the above experiments were performed in the presence of light? If these experiments were performed in mitochondria instead of chloroplasts, what results would we expect?arrow_forwardAtp bookkeeping. Explain where the number of 38 and 32 atp per glucose molecules comes fromarrow_forwardSmall explanation please. what is a product in the first stage of the Q- cycle? a. two electrons b. Q- cation c. cyt c (oxidized) d. two more protons in the matrix e. Q- radical anionarrow_forward
- Draw Glycolysis. Please make sure to state all the enzymes and co-factors for each step of the pathway.arrow_forwardQuestion 5 Review Concept 10.4 Calvin Cycle. Match the term and its description. Each term can only be used once. G3P. ADP, NADP+ and Pi | Choose ) 9 ATP. 6 NADPH, 3 CO2 | Choose J Carbon fixation is catalyzed by this enzyme called | Choose ) This molecule is considered as CO2 acceptor. | Choose J >arrow_forwardMatching. Match description of endproducts with specific stage in aerobic respiration starting with one molecule of glucose. Krebs Cycle [ Choose ] glycolysis [ Choose ] Krebs "Prep" [ Choose ]arrow_forward
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