Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Question
Chapter 27.1, Problem 3CC
Summary Introduction
To suggest: A hypothesis explaining the resemblance of thylakoid membranes of chloroplasts and cyanobacteria.
Concept introduction:
The prokaryotic cells are simple in structure and arrangement of DNA though some prokaryotic cells exhibit some specialized membranes such as thylakoid membranes to perform metabolic functions. In general, the thylakoid membranes of chloroplasts resemble to the thylakoid membranes present in cyanobacteria.
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Chapter 27 Solutions
Campbell Biology
Ch. 27.1 - Describe two adaptations that enable prokaryotes...Ch. 27.1 - Contrast the cellular and DNA structures of...Ch. 27.1 - Prob. 3CCCh. 27.2 - Although rare on a per gene basis, new mutations...Ch. 27.2 - Distinguish between the three mechanisms by which...Ch. 27.2 - In a rapidly changing environment, which bacterial...Ch. 27.3 - Distinguish between the four major modes of...Ch. 27.3 - A bacterium requires only the amino acid...Ch. 27.3 - WHAT IF? Describe what you might eat for a...Ch. 27.4 - Explain how molecular systematics and metagenomics...
Ch. 27.4 - Prob. 2CCCh. 27.5 - Explain how prokaryotes, though small, can be...Ch. 27.5 - MAKE CONNECTIONS Review Figure 10.6. Then...Ch. 27.6 - Identify at least two ways that prokaryotes have...Ch. 27.6 - Prob. 2CCCh. 27.6 - Prob. 3CCCh. 27 - Describe features of prokaryotes that enable them...Ch. 27 - Mutations are rare and prokaryotes reproduce...Ch. 27 - Describe the range of prokaryotic metabolic...Ch. 27 - How have molecular data informed prokaryotic...Ch. 27 - In what ways are prokaryotes key to the survivaI...Ch. 27 - Prob. 27.6CRCh. 27 - Genetic variation in bacterial populations cannot...Ch. 27 - Photoautotrophs use (A) light as an energy source...Ch. 27 - Which of the following statements is not true? (A)...Ch. 27 - Prob. 4TYUCh. 27 - Prob. 5TYUCh. 27 - Prob. 6TYUCh. 27 - Prob. 7TYUCh. 27 - SCIENTIFIC INQUIRY INTERPRET THE DATA The...Ch. 27 - WRITE ABOUT A THEME: ENERGY In a short essay...Ch. 27 - SYNTHESIZE YOUR KNOWLEDGE Explain how the small...
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- 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_forwardExplain the ways that mitochondria resemble rickettsias andchloroplasts resemble cyanobacteria.arrow_forwardHow can the hypothesis that asserts that chloroplasts as well as mitochondria were primitive prokaryotes that associated in mutualism with primitive anaerobic eukaryotic cells be corroborated?arrow_forward
- In 2010, a bew form of chlorophyll (chlorophyll f) was discovered in cyanobacteria assemblages of stromatolites growing in Shark Bay, Australia. Chlorophyll f has been isolated. and scientists are investigating the structure and function of this pigment. Based on your understanding of photosynthesis, how would you determine the wavelengths of light the pigment absorbs? How would you determine if this pigment plays a role in photosynthesis? (Hint: Think about the overall equation for photosynthesis.)arrow_forwardWhat key aspects of chloroplasts(and mitochondria) are consistent with the theory that they mayhave once been bacteria? List three specific features.arrow_forwardDuring cellular respiration in procaryotic cells where is the electron will transport? 1) plasma membrane 2) mitochondria 3) chloroplast 4) nucleusarrow_forward
- Explain, Which of the following plays an important part in photosynthesis? A) Chloroplast B) Centrosome C) Tonoplast D) Nematoblastarrow_forwardThe apicomplexan that causes malaria has a photosynthetic ancestor and contains an organelle that evolved from its ancestral chloroplast. The organelle no longer functions in photosynthesis, but it does carry out some essential metabolic tasks. Why would targeting this organelle yield an antimalarial drug that would be likely to have minimal side effects?arrow_forwardCompare photo litho autotrophy with chemo-organo heterotrophy. Sun light is the ultimate source of energy and all living organisms obtain their energy directly or indirectly from the sun. However in deep-sea vents (where there is no sun light) life has originated and the many groups of microorganisms are flourishing in such environment. How? Explain your reasoningarrow_forward
- describe: The ways in which the chloroplast is similar to prokaryotes.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_forward1) Dichlorophenyldimethylurea inhibits photosynthesis by blocking electron transfer between the plastoquinone in photosystem II. a) Would you expect this to interfere with cyclic photophosphorylation? b) This herbicide normally stops O2 evolution, but if we add ferricyanide to the chloroplasts, O2 evolution continues. Why might this be the case?arrow_forward
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