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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Chapter 4.5, Problem 3CC
Summary Introduction
To argue:
Against a proposal given by a candidate that the mitochondria and chloroplast should be classified in the endomembrane system.
Introduction:
Mitochondria are membrane bound organelle which is also known as “power house of the cell”. It is present in almost all cells except RBCs. The structure of mitochondria includes outer and inner membranes made of lipid and proteins. The chloroplast is a lens shaped in structure and enveloped in membranes called as stroma which contains DNA, ribosomes and enzymes. Flat and connected sacs known as thylakoid are present in units known as granum which contains chlorophyll. The chlorophyll captures the sunlight and converts and stores it in the form of ATP.
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Q. Membrane surface area and cell volume are two physical variables that are relevant in explaining the difference in size and complexity between prokaryotic and eukaryotic cells.
Which of the following statements about these variables is correct?
The ratio of plasma membrane area to total cell volume increased in early eukaryotes which allowed for greater morphological complexity.
The total membrane area dedicated to oxidative phosphorylation is greater in eukaryotes.
Although physically smaller, prokaryotic cells have more total cell volume than a typical eukaryotic cell.
In prokaryotic cells, the membrane location of ATP synthase is the same as that for glucose import.
A. 1,2 and 3
B. 1 and 3
C. 2 and 4
D. 4 only
E. All of 1,2,3 and 4 are correct
. Briefly state how each of the following cell componentscan be recognized in electron micrographs: the nucleus,a mitochondrion, a lysosome, and a centriole. What is theprimary function of each?
Chapter 4 Solutions
Campbell Biology in Focus
Ch. 4.1 - Prob. 1CCCh. 4.1 - Prob. 2CCCh. 4.2 - Briefly describe the structure and function of the...Ch. 4.2 - Prob. 2CCCh. 4.3 - What role do ribosomes play in carrying out...Ch. 4.3 - Describe the molecular composition of nucleoli,...Ch. 4.3 - WHAT IF? As a cell begins the process of dividing,...Ch. 4.4 - Describe the structural and functional...Ch. 4.4 - Describe how transport vesicles integrate the...Ch. 4.4 - WHAT IF? Imagine a protein that functions in the...
Ch. 4.5 - Describe two characteristics shared by...Ch. 4.5 - Prob. 2CCCh. 4.5 - Prob. 3CCCh. 4.6 - Prob. 1CCCh. 4.6 - WHAT IF? Males afflicted with Kartageners syndrome...Ch. 4.7 - In what way are the cells of plants and animals...Ch. 4.7 - Prob. 2CCCh. 4.7 - MAKE CONNECTIONS The polypeptide chain that makes...Ch. 4.8 - Colpidium colpoda is a unicellular protist that...Ch. 4 - Which structure is not part of the endomembrane...Ch. 4 - Which structure is common to plant and animal...Ch. 4 - Which of the following is present in a prokaryotic...Ch. 4 - Cyanide binds to at least one molecule involved in...Ch. 4 - Which cell would be best for studying lysosomes?...Ch. 4 - DRAW IT From memory, draw two eukaryotic cells....Ch. 4 - SCIENTIFIC INQUIRY In studying micrographs of an...Ch. 4 - FOCUS ON EVOLUTION Compare different aspects of...Ch. 4 - FOCUS ON ORGANIZATION Considering some of the...Ch. 4 - Prob. 10TYU
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