Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 19, Problem 21P
Interpretation Introduction
Interpretation:
It is required to propose the inhibitory site of DCMU.
Concept introduction:
DCMU or Dichlorophenyldimethylurea is aherbicide that interferes with the process of photophosphorylation and oxygen evolution. In the presence of an artificial electron acceptor like ferricyanide, the oxygen evolution is not blocked.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
1.) True or False. In the second step of Light Dependent Reaction, P680 loses its electron and becomes positively charged (P680+)
MULTIPLE CHOICE1. Chlorophyll bears some structural resemblance to the molecule.A.Starch B. Hemoglobin C. Fats D. Protein2. What happens when a pigment absorbs a photon of light?A. Electrons bump each to each other C. Electrons freezesB. Electrons becomes protons D. Electron moves further form the nucleus3. These are large complexes of proteins and pigments (light-absorbing molecules) thatare optimized to harvest light, play a key role in the light reactions.A. PHOTOSYSTEMS B. SYSTEMPHOTO C. PHOTOSYSTEMATICS D. PHOTONG
4. A type of reaction that uses light energy to make ATP and NADPH for the next stageof photosynthesis.A. Light dependent Reaction C. Lights Off ReactionB. Light Independent Reaction D. Lights On Reaction5. Photosystems I and II can be found in the ________ of the thylakoid.A. Lumen C. Antenna assemblyB. Stroma D. Granum6. In Photosystem II what is produced when light energize the chlorophyll?A. Ferredoxin C. PlastoquinoneB. Pheophytin D. Iron-sulfur protein7. In…
MUltiple choice (answers only)
11. Which of the following phrases apply to the dark phase of photosynthesis?
I The process takes place in the thylakoids of the chloroplasts.
II There is carbon fixation.
III There is photophosphorylation.
IV Oxygen is one of the products of the reaction.
V There is a reduction.
VI The process produces NADPH + H +.
VII ATP molecules are necessary for the reactions to take place.
a) I, III and IV
b) I, II and VII II,
c) V and VII
d) III, IV and VI
d) II, V, VI and VII
12. Aerobic respiration is more efficient than anaerobic respiration because: a) Most animals breathe air.
b) Only bacteria and yeasts use anaerobic respiration.
c) The blood always carries enough oxygen to the cells.
d) Aerobic respiration allows for faster oxidation during intense exercise.
e) more ATP is produced by a metabolized molecule.
13. At the end of glycolysis, most of the glucose energy undergoing aerobic respiration is in the molecules:
a) lactic acid.
b)ATP.
c)pyruvic acid.
d)…
Chapter 19 Solutions
Biochemistry
Ch. 19 - Prob. 1PCh. 19 - Prob. 2PCh. 19 - Prob. 3PCh. 19 - Prob. 4PCh. 19 - Prob. 5PCh. 19 - Prob. 6PCh. 19 - Prob. 7PCh. 19 - Prob. 8PCh. 19 - Prob. 9PCh. 19 - Prob. 10P
Ch. 19 - Prob. 11PCh. 19 - Prob. 12PCh. 19 - Prob. 13PCh. 19 - Prob. 14PCh. 19 - Prob. 15PCh. 19 - Prob. 16PCh. 19 - Prob. 17PCh. 19 - Prob. 18PCh. 19 - Prob. 19PCh. 19 - Prob. 20PCh. 19 - Prob. 21PCh. 19 - Prob. 22PCh. 19 - Prob. 23PCh. 19 - Prob. 24PCh. 19 - Prob. 25PCh. 19 - Prob. 26PCh. 19 - Prob. 27PCh. 19 - Prob. 28PCh. 19 - Prob. 29PCh. 19 - Prob. 30PCh. 19 - Prob. 31P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biochemistry and related others by exploring similar questions and additional content below.Similar questions
- Which of the following structures is not a component of a photosystem? ATP synthase antenna molecule reaction center primary electron acceptorarrow_forwardPhotosyntheis related question (s): When protons move out of the thylakoid, are they moving up or down their concentration gradient? (From low to high concentration or from high to low concentration?) What protein(s) facilitate the transport of protons out of the thylakoid? We can write the formula for photosynthesis as follows: 6 H2O + 6 CO2 + light energy → C6H12O6 + 6 O2 How would you write a formula for the light reactions? Include ATP, ADP, NADP and NADPH as relevant? How would you write a formula for the Calvin cycle? Include ATP, ADP, NADP and NADPH as relevant.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. The dark reaction phase depends on the products of light-dependent phase to produce carbohydrates.arrow_forward
- 13. Statement 1: In the Calvin Cycle, two molecules of glyceraldehyde 3-phosphate are produced if two molecules of carbon dioxide are fixed. Statement 2: If the carbon fixation phase of the Calvin Cycle begins with 6 molecules of ribulose bisphosphate and 6 molecules of carbon dioxide, 2 out of 12 molecules of glyceraldehyde 3-phosphate made at the end of the reduction phase are used in carbohydrate production while the remaining 10 molecules are needed to keep the Calvin Cycle turning by regenerating ribulose bisphosphate. Statement 1 is true. Statement 2 is false. Statement 1 is false. Statement 2 is true. Both statements are true. Both statements are false.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. During photorespiration, Rubisco acts as carboxylase that catalyzes the reaction of RuBP and oxygen to form phosphoglycolate and PGA in the chloroplast.arrow_forwardBIOMOLECULES - Please answer the questions properly. - Multiple choice 1. Which of the following statements is TRUE in the catabolism of cytidine triphosphate (CTP)? A. the nitrogen-containing ring will be oxidized B. nitrogen will be released in the form of ammonia (ammonium ion) C. the final product will have the same type of nitrogen-containing ring as CTP D. hypoxanthine will be an intermediate 1. A 7-year-old boy suffers from mental retardation and self-mutilation and has an increased levels of serum uric acid. These symptoms are characteristic of Lesch Nyhan syndrome, which is due to defective ________? A. Xanthine oxidase B. Denovo synthesis of pyrimidines C. HGPRT (Hypoxanthine Guanine Phospho Ribosyl Transferase) D. Salvage pathway for pyrimidine biosynthesisarrow_forward
- Yes, but Kelper 28, is a unicellular, carbon based, eukaryotic organism so how is chemosynthesis possible?arrow_forward1. Which of the following statement is CORRECT? A Hydrolysis of starch into glucose in an elimination reaction B Group transfer reaction is a nucleophilic substitution reaction C Conversion of 3-phosphoglycerate to 2-phosphoglycerate is a group transfer reaction D Most biochemical reaction occurs via homolytic cleavage E Electrophiles are electron-rich, while nucleophiles are electron-deficientarrow_forwardInorganic Nitrate (N03-) contaminated the soil around their plant. Scientists developed mechanisms for removing Nitrite (N02-) from the soil, but have not found one for Nitrate (N03-). Is there any types of bacteria that could metabolize Nitrate (N03-) to give rise to Nitrite (N02-)? Indicate ALL metabolic pathways that could be used (aerobic respiration, anaerobic respiration, aerobic chemolithotrophy, and anaerobic chemolithotrophy) to carry out this reaction? Which of these reactions can oxidize or reduce inorganic materialsarrow_forward
- Which of the following substances does not participate in the CalvinBenson cycle? a. ATP b. NADPH c. RuBP d. PGAL e. O2 f. CO2arrow_forwardPlants containing only chlorophyll b are exposed to radiation with the following wavelengths: 10nm (x- rays), 450nm (blue light), 670nm (red light), and 800nm (infrared light). Which plants harness the most energy for photosynthesis? X-ray irradiated plants Blue light irradiated plants Red light irradiated plants Infrared irradiated plantsarrow_forwardWhat compound receives elections from NADH? FMN ubiquinone cytochrome c1 oxygenarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxBiology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781305073951
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Anaerobic Respiration; Author: Bozeman Science;https://www.youtube.com/watch?v=cDC29iBxb3w;License: Standard YouTube License, CC-BY