Campbell Biology In Focus
2nd Edition
ISBN: 9780134203072
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 25.3, Problem 2CC
MAKE CONNECTIONS Review Figures 7.2 and 8.5 Summarize how CO2 and O2 are both used and produced by aerobic algae.
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Extension Questions
Which of the following sequences correctly represents the flow of electrons during
photosynthesis?
A) NADPH 02 → CO2
B) H₂O
NADPH →Calvin cycle
C) NADPH chlorophyll →Calvin cycle
D) H2O
E) NADPH
photosystem I → photosystem II
electron transport chain → 02
Place these events in the correct order: absorption of electromagnetic radiation by chlorophyll,
synthesis of sugars, utilization of carbon dioxide by Calvin cycle enzymes, synthesis of
NADPH, synthesis of ATP, conversion of water into molecular oxygen.
Is NADP+ oxidized or reduced during the light reactions? How do you know this?
What would you expect to happen if you inactivated the NADP+ reductase?
Q5.Mention three similarities & three
differences between mitochondria &
chloroplasts?
Q5.After understanding the process of bio-gas generation, explain with an example and figures about the biogas generation process in rural area with your own words.(any one out of 2 can be written by the students)
Chapter 25 Solutions
Campbell Biology In Focus
Ch. 25.1 - Describe major events in the evolution of early...Ch. 25.1 - Explain why eukaryotes are said to be combination...Ch. 25.1 - Prob. 3CCCh. 25.2 - Summarize the evidence that choanoflagellates are...Ch. 25.2 - MAKE CONNECTlONS Describe how the origin of...Ch. 25.2 - Prob. 3CCCh. 25.3 - Briefly describe the organisms found in each of...Ch. 25.3 - MAKE CONNECTIONS Review Figures 7.2 and 8.5...Ch. 25.3 - Prob. 3CCCh. 25.4 - Justify the claim that photosynthetic protists are...
Ch. 25.4 - Prob. 2CCCh. 25.4 - Prob. 3CCCh. 25 - The oldest fossil eukaryote that can be resolved...Ch. 25 - Prob. 2TYUCh. 25 - Plastids that are surrounded by more than two...Ch. 25 - Prob. 4TYUCh. 25 - Prob. 5TYUCh. 25 - Based on the phylogenetic tree in Figure 25.9,...Ch. 25 - MAKE CONNECTIONS The bacterium Wolbachia is a...Ch. 25 - FOCUS ON EVOLUTION DRAW IT Medical researchers...Ch. 25 - FOCUS ON INTERACTIONS Organisms interact with each...Ch. 25 - SYNTHESIZE YOUR KNOWLEDGE These micrographs show...
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- Name the green algal group from which plants are hypothesized to have descended and describe supporting evidence.arrow_forwardWHAT IF? The main product of fossil fuel combustion is CO2 , and thisis the source of the increase in atmospheric CO2 concentration. Scientistshave proposed strategically situating containers of these algae near industrialplants or near highly congested city streets. Considering the process ofphotosynthesis, how does this arrangement make sense?arrow_forwardMAKE CONNECTIONS Use the second law of thermodynamics to explain why an ecosystem’s energy supply mustbe continually replenished (see Concept 8.1)arrow_forward
- Q. 15 Please answer correctly well explained and not from google internet. In the graph below, the net rate of photosynthesis is shown in relation to the leaf temperature in regular plants (C3) and plants C4. A) Describe the results represented by the graph. (What does this graph tell you about the effect of temperature on both types of plants?) B) Explains the results represented by the graph by highlighting the differences in adaptation between plants in C3 and C4.arrow_forwardSummarize the ecological significance of fungi as decomposers.arrow_forwardMAKE CONNECTIONS How do the CO2 moleculesused in photosynthesis reach and enter the chloroplastsinside leaf cells? (See Concept 7.2.)arrow_forward
- MAKE CONNECTIONS Explain how nitrogen andphosphorus, the nutrients that most often limit primaryproduction, are necessary for the Calvin cycle to functionin photosynthesis (see Concept 10.3).arrow_forwardWHAT IF? What would the discovery of a bacterialspecies that is a methanogen imply about the evolutionof the methane-producing pathway?arrow_forwardQ#1 Can you convert your worker bee larva into a queen in your Apiculture farm? Explain your answer with reason in any case.arrow_forward
- PREDICT How might a food web change if all decomposers were eliminated from it?arrow_forward* Dashboard Kan/ S Biclogy Meeting Zo: E Mis sing Ass qmen ea.. Student Portal Home | Schoology Google Translate الإنحليرية ل لمبند ئبن ... S Biology $2Per1-SH... Cellular respiration A yeast cell is transported from an environment with oxygen to a completely oxygen-free environment. Which of the following answer choices best describes the metabolic changes that will occur in the yeast cell? Choose 1 answer: Glycolysis will still occur and pyruvate will undergo alcohol fermentation, but the Krebs cycle and oxidative phosphorylation will not occur. Glycolysis will not occur and pyruvate will not form, causing the yeast cell to undergo alcohol fermentation. Glycolysis will still occur, but pyruvate will not form, causing the yeast cell to undergo alcoholarrow_forward• Which types of environments are better for C4 photosynthesis plants than for C3 photosynthesis plants?Describe how a high oxygen content in leaves can be toxic to plants.arrow_forward
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