Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Question
Chapter 24.2, Problem 3CC
Summary Introduction
To suggest:
A hypothesis to explain why the thylakoid membranes of chloroplasts resemble those of cyanobacteria.
Concept introduction:
The cyanobacterial cells contain the chloroplast with the thylakoid membrane. These cells are formed by the fusion of the primitive bacterial cells with the green algae as mentioned in the endosymbiont theory of the origin of mitochondria and chloroplasts.
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Chapter 24 Solutions
Campbell Biology in Focus
Ch. 24.1 - What hypothesis did Miller test in his classic...Ch. 24.1 - How would the appearance of protocells have...Ch. 24.1 - Prob. 3CCCh. 24.1 - Prob. 4CCCh. 24.2 - Contrast the cellular and DNA structures of...Ch. 24.2 - Distinguish between the four major modes of...Ch. 24.2 - Prob. 3CCCh. 24.2 - Prob. 4CCCh. 24.3 - Although rare on a per gene basis, new mutations...Ch. 24.3 - Distinguish between the three mechanisms by which...
Ch. 24.3 - In a rapidly changing environment, which bacterial...Ch. 24.3 - WHAT IF? If a nonpathogenic bacterium were to...Ch. 24.4 - Explain how molecular systematics and metagenomics...Ch. 24.4 - WHAT IF? What would the discovery of a bacterial...Ch. 24.5 - Explain how prokaryotes, though small, can be...Ch. 24.5 - Prob. 2CCCh. 24.5 - Prob. 3CCCh. 24.5 - Prob. 4CCCh. 24 - Which of the following steps has not yet been...Ch. 24 - Fossilized stromatolites A. more than 2.8 billion...Ch. 24 - Prob. 3TYUCh. 24 - Photoautotrophs use A. light as an energy source...Ch. 24 - Which of the following statements is not true? A....Ch. 24 - Prob. 6TYUCh. 24 - Prob. 7TYUCh. 24 - SCIENTIFIC INQUIRY INTERPRET THE DATA The...Ch. 24 - FOCUS ON EVOLUTION In patients infected with...Ch. 24 - FOCUS ON ENERGY AND MATTER In a short essay (about...Ch. 24 - Prob. 11TYU
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- compare and contrast chloroplastss and mitochonndria from teh perspective of : organization of their electron transportation systems (z-scheme versus ETC)arrow_forward“Watermelon snow” in Antarctica is caused by a certain species of photosynthetic green algae that thrives in subzero temperatures (Chlamydomonas nivalis). These algae are also found in high-altitude, year-round snowfields. In both locations, Uv light levels tend to be high. Propose an explanation for why this alga appears reddish-pink. The question is also in the picturearrow_forwardConsider the structures and functions of mitochondria and chloroplasts. For each of the statements below, identify which part(s) of the chloroplast or mitochondrion (identified by letters in the figure below) are described. Some answers may include more than 1 letter. In those cases, separate the letters by a single space (eg. c g) Electron transport chains are located in ------ Photosystem I and II are located in ------- Ubiquinone is located in ------- NADPH is produced in ------ Pyruvate oxidation takes place in ------ ATP is produced in ------ NAD+ is produced in ----- High H+ concentration is produced in ----- O2 is produced in ----- RuBP is produced in ------arrow_forward
- Why is an isotonic buffered extraction medium used to isolate the chloroplasts? 1.To gently lyse the chloroplasts, leaving the electron transport membranes intact, whilst allowing DCPIP access 2.To maintain a constant acidic pH and favourable hyper-osmotic conditions, to ensure that the chloroplasts remained intact and functional during extraction 3.To gently separate the chloroplasts from each other, leaving the electron transport membranes intact, whilst allowing DCPIP access 4.To maintain a constant physiological pH and favourable iso-osmotic conditions, to ensure that the chloroplasts remained intact and functional during extraction.arrow_forwardQ1: Is chlorophyll found only within chloroplasts? Q2: What could be an advantage of concentrating chlorophyll molecules in the membranes of chloroplasts? Q3: What is the advantage of having multiple chloroplasts per cell?arrow_forwardFor the following questions, choose one to discuss: chloroplast/photosynthesis State at the outset which one you will discuss. A) What role do proton gradients play in the process of photosynthesis proton gradients allow B) Where are proton gradients formed? Within what structures are they seen in chloroplasts How do the structures help them to maintain a gradient? C) Explain where and how the chloroplast or mitochondria uses passive transport and active transport to complete photosynthesis or cellular respiration.arrow_forward
- 1. Why was the great oxygenation event important for mitochondrial development? a) In your own words, define symbiotic. 2. Chloroplasts and mitochondria both contain a circular DNA chromosome, and ribosomes. Why does this evidence support the theory of endosymbiosis as the mechanism for the origin of eukaryotic cells? a) Today, could mitochondria live independently of their eukaryotic cell host? Give two pieces of evidence to support your answer.arrow_forwarddescribe: The ways in which the chloroplast is similar to prokaryotes.arrow_forwardBreifly explain how a chloroplast structural protein is built, modified, and transported to the chloroplast. Make sure to mention the following organelles or cell parts in your answer: chloroplast, rough endoplasmic reticulum, Golgi, nucleus, ribosome,arrow_forward
- In a classic experiment in photosynthesis performed in 1883 by the German botanist Thomas Engelmann, he surrounded a filament of algae with oxygen-requiring bacteria. He then exposed the algal strand to the visible-light spectrum along its length. In which wavelengths of light along the algal strand would you expect the bacteria to cluster. Explain.arrow_forward. The light-sensitive, protein component of the complex which pumps hydrogen ions out of the cell when exposed to sunlight (from the halophilic archaeobacterium Halobacterium halobium) is called: the photosynthetic reaction center bacteriorhodopsin retinal cytochrome c bacteriochlorophyllarrow_forwardName and describe the phases of PHOTOSYNTHESIS in EUKARYOTES. Include in your description where in the cell (be specific) each phase takes placearrow_forward
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