Which of the following is the correct sequence for the movement of electrons duringthelight-dependent reactions of plants?a) P680, water, P700, NADP+c) P700, P680, NADP+, waterb) Water, P680, P700, NADP+d) Water, P700, NADP+, P680

During the light-dependent reactions, light energy is absorbed by photosystems I and II (PSI and…

Answered: Which of the following is the correct…

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter20: The Protists

Section: Chapter Questions

Problem 4CT: Melvin Calvin and Andrew Benson determined the steps in the light-independent reactions of...

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So, what is actually produced during the light reaction? Do you know the chemical equation? a) 2 H20 + 2 NADP+ + NADP + nPi + hv produce O2 + 2 NADPH + 2 H* + NATP b) O2 + 2 NADP+ + NATP + hv produce 2 H2O + 2 NADPH + 2 H+ + NADP + nPi c) 2 H20 + 2 NADP+ + NATP + hv produce O2 + 2 NADPH + 2 H+ + NADP + nPi d) 2 H20 + 2 NADPH + NADP + nPi + hv produce O2 + 2 NADP+ + 2 H+ + NATP
A) The concentration of CO2 is lower inside a plant cell than in the atmosphere (outside the cell). In your own words, describe how the CO2 levels are kept low inside the plant cell and explain why this is necessary. Assume stomata are open. B) Regarding the situation presented in Part A and assuming that the stomata of the plant leaves are closed, would this favour the induction of photorespiration in a C3 plant? Explain. Make reference to relevant molecule or molecules as needed. Please clearly label your responses as A and B
Which of the following correctly sequences the steps of non-cyclic electron transport? a) Chlorophyll molecules absorb UV radiation exciting electrons which flow through photosystem I, returning to the chlorophyll molecules b) Electrons donated from water molecules pass through photosystem I then photosystem II before returning to the chlorophyll molecules, generating ATP in the process c) Water is oxidized by the capture of light energy; these excited electrons are passed through the dark reactions, returning to chlorophyll during the final light reactions d) The ATP and NADPH generated by the reactions of photosystem II and photosystem I are utilized by the Calvin Cycle to build high energy glucose molecules
43) Which of the following is false? A) C3, C4, and CAM plants use the light dependent reactions to harvest energy from the sun and light independent reactions to turn that energy into sugar. B) C3 plants use photorespiration (as opposed to the Calvin Cycle) when CO2 is low ) C4 plants utilize a specialized carbon fixation enzyme and a unique cell structure to reduce the problems of photorespiration D) CẢM plants perform all of the steps of photosynthesis at night to avoid e photorespiration
In hot, dry climates, plants have evolved mechanisms to avoid photorespiration. Which of the following is FALSE Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a b с d e C3 plants have no mechanism to avoid photorespiration C4 plants reduce photorespiration by separating the light reaction in the mesophyll cells from the light- independent reaction in the bundle-sheath cells CAM plants minimize photorespiration by collecting and storing CO2 at night and keeping their stomata closed during the day C4 plants include corn, sugarcane, and many grasses CAM plants can undergo photophosphorylation in the absence of sunlight Open in Readir
Which of the following best describes the products of the photochemical reactions of photosynthesis?A) NADH and ATP are made in the stromaB) NADPH and ATP are made in the stromaC) NADH and ATP are made in the thylakoid lumenD) NADPH is made in the stroma and ATP is made in the thylakoid lumenE) NADPH and ATP are made in the thylakoid lumen
Using the graph comparing photosynthetic rate and absorption of different wavelengths of light, what can be concluded? a) The photosynthesis rate at 550 nm is the highest b) Chlorophyll a absorbs wavelengths at both ends of the spectrum c) Chlorophyll b is associated with the greatest rate of photosynthesis. d) Carotenoids absorb the narrowest range of wavelengths of light
In chloroplasts, the light reactions power the creation of ATP via chemiosmosis. In relation to this process, which of the following is true? a) ATP synthase breaks ATP down into ADP, creating energy to fuel chemiosmosis. b) Oxygen is used as a source of electrons to replace those lost in photosystem II. c) Chemiosmosis during the light reactions is also used in the reduction of NADPH and FADH2. d) As excited electrons fall back down to a lower energy state, they create a proton gradient that is used to fuel the phosphorylation of ADP.
In hot, dry climates, plants have evolved mechanisms to avoid photorespiration. Which of the following is FALSE Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a b с d C3 plants have no mechanism to avoid photorespiration C4 plants reduce photorespiration by separating the light reaction in the mesophyll cells from the light- independent reaction in the bundle-sheath cells CAM plants minimize photorespiration by collecting and storing CO2 at night and keeping their stomata closed during the day C4 plants include corn, sugarcane, and many grasses CAM plants can undergo photophosphorylation in the absence of sunlight 7 Open in Readin
Which definition is INCORRECT? A) O Photoexcitation: light absorption leads to raising an electron to a higher energy state. C) O Photolysis: light absorption coupled to splitting a molecule. D) O Photophosphorylation: a form of substrate level phosphorylation used for ATP formation E) O Photosynthesis: is often photoexcitation and photolysis coupled with CO2 fixation and biosynthesis
From a plant's perspective, the main purpose of photosynthesis is to Group of answer choices a)to produce sugars and oxygen for heterotrophs. b)plants are not cognitive organisms and therefore we have no idea what the "purpose" of photosynthesis is for the plant. c)to produce enough O2 gas for the plant to survive through the night. d)make sugars, such as glucose, to use for building cell walls and for energy needed by the plant.
What is/are the product(s) of the light capturing reactions of photosynthesis? a) ATP and NAD(P)H O b) ATP only c) ATP and FADH2 d) Glucose and ATP

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Which of the following is the correct sequence for the movement of electrons during the light-dependent reactions of plants? a) P680, water, P700, NADP+ c) P700, P680, NADP+, water b) Water, P680, P700, NADP+ d) Water, P700, NADP+, P680