Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 8.5, Problem 1CC
Summary Introduction
To determine: The minimisation of photorespiration in C4 plants through the cellular arrangement.
Introduction: The C4 plants are the plants that use the molecule of carbon dioxide and converts it into four-carbon oxaloacetate which further enters into the Calvin cycle. The anatomy and the physiology of the plants help them to survive in dry and hot climates.
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In an experiment conducted on photosynthesis-CO2 update and photosynthesis-Determining rate in white light. what gas will be produce as an product of photosynthesis and if present, what will this allow the leaf dice to do? Also, what will be the goal of photosynthesis, and how will it be different from the goal of cellular respiration?
Photosystem II has what role in photosynthesis?
Question 9 options:
directly pumping protons across the chloroplast membrane
synthesis of ATP from ADP and Pi
release CO2 and generate NADPH
fix CO2
oxidation of H2O to O2
Please help!
Photosynthesis and Cell respiration:
A. What should happen to the O2 levels in a closed container containing a plant during the day? why?
B. And what happens to the O2 levels during the night (no light)? Why?
Chapter 8 Solutions
Biology
Ch. 8.1 - Core Skill: Modeling The goal of this modeling...Ch. 8.1 - Prob. 2CSCh. 8.1 - Can the Calvin cycle occur in the dark?Ch. 8.2 - Prob. 1CCCh. 8.2 - Prob. 2CCCh. 8.2 - Prob. 3CCCh. 8.2 - Prob. 4CCCh. 8.2 - Why does cyclic photophosphorylation provide an...Ch. 8.2 - Prob. 6CCCh. 8.3 - Prob. 1CC
Ch. 8.4 - Prob. 1CCCh. 8.4 - Prob. 1EQCh. 8.4 - Prob. 2EQCh. 8.4 - Prob. 3EQCh. 8.5 - Prob. 1CCCh. 8.5 - Prob. 2CCCh. 8 - The water necessary for photosynthesis a. is split...Ch. 8 - In PSII, P68o differs from the pigment molecules...Ch. 8 - Prob. 3TYCh. 8 - Prob. 4TYCh. 8 - Prob. 5TYCh. 8 - Prob. 6TYCh. 8 - Prob. 7TYCh. 8 - Prob. 8TYCh. 8 - Prob. 9TYCh. 8 - Prob. 10TYCh. 8 - Prob. 1CQCh. 8 - Prob. 2CQCh. 8 - Prob. 3CQCh. 8 - Discuss the advantages and disadvantages of being...Ch. 8 - Biotechnologists are trying to genetically modify...
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- Observing the over-all equation for photosynthesis, what are two variables other than light intensity, which would have an influence on how quickly the leaf disks float? Thanks in advancearrow_forwardDescribe how the structure of the mitochondria OR the chloroplast aids in function. 12. Why do the chlorophyll a molecules in photosystem II have an optimal absorbance of light at 680 nm, while the chlorophyll a molecules in photosystem I have an optimal absorbance of light at 700 nm? What does this tell you about the transfer of energy between these two photosystems during the light reactions?arrow_forwardHow is photosynthesis related to cellular respiration? Give atleast 2 evidences that these processes play a virtual role to each other.arrow_forward
- Null hypothesis If the Hydrilla plant is placed in light conditions, then it will undergo photosynthesis and respiration. If the Hydrilla plant is placed in dark conditions, then it will undergo only respiration. The Hydrilla plant will undergo photosynthesis and respiration when placed in light conditions. The Hydrilla plant will undergo respiration only when placed in dark conditions. Determine the Independent and Dependent variablesarrow_forwardIS THIS A GOOD BREAK DOWN? WHAT ELSE CAN I SHOULD I ADD? Briefly explain the light-dependent reactions of photosynthesis: where does this take place, what are the reactants and what is produced? Light-dependent reactions are used to convert light energy into chemical energy for use by the plants. Through the process of photosynthesis, the energy collected from the sun is broken down, along with water molecules, to produce NADPH and ATP. Light-dependent reactions Goal Convert light energy into chemical energy Location Chloroplasts—thylakoids Input Sunlight, H2O, NADP+, ADP Output NADPH, ATP, O2arrow_forwardQ no 2: Describe in detail what happens during the light reactions of photosystems. Use terms such as photosystems (be specific about which is which), pigments, reaction center, water-splitting, NADPH, ATP, ADP, NADP+, oxygen gas, etc?arrow_forward
- Need help In what kinds of environments would you expect to find C3, C4, or CAM plants? What is the advantage of the C4 pathway when CO2 concentrations are low?arrow_forwardPhotosynthetic response curve to light for sun (solid line, N = 14) and shade leaves (dashed line, N = 21) of S. Why in this graph do we see shaded leaves have lower values compared to light leaves as PAR is increasing?arrow_forwardTags: photosynthesis, plants, biology, chemistry, biochemistry Consider a recently discovered planet that scientists believe is capable of supporting life due to its similarities to the earth. However, its daytime temperature and oxygen content in its atmosphere are HIGHER than earth. Design a plant that can survive and show MAXIMUM photosynthetic efficiency in this planet by enumerating the features (anatomical/metabolic) that you will include and explain why it is necessary to include them.arrow_forward
- Magaia et al. illustrated in Figure 2 the relationship of photosynthetic rate and respiration rate of C3 plants as a function of temperature (2015). Which process hampers the carbohydrate synthesis when the temperature exceeds 30°C? a. Light-dependent reaction b. Light-independent reaction c. Photorespiration d. Photolysis of waterarrow_forwardQuestion:- Which of the following statements about photosynthesis are FALSE? a) Photosystem II has a higher redox potential than water. b) Plastocyanin donates its electrons to photosystem I. c) Chloroplast ATP synthase releases ATP into the thylakoid space d) Water-splitting enzyme releases four protons into the thylakoid space for every water molecule that is split. e)cytochrome b6-f complex pumps protons into the thylakoid space.arrow_forwardTopic: Photosynthesis Hi. I'm having trouble determining the answer to this question. I would like to say it would be Water and NADPH. However, I am not confident. Would you help me with this question? Thank you. Original Question: The chloroplast electron transport chain requires a continuous donation of electrons from ___________ , which are used ultimately to reduce a molecule of ___________ .arrow_forward
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