Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 6, Problem 7TYU
EVOLUTION CONNECTION (a) What cell structures best reveal evolutionary unity? (b) Provide an example of diversity related to specialized cellular modifications.
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What cell structures best reveal evolutionary unity? Provide examples of diversity related to specialized cellular modifications.
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Which of the following is not correct?(a) Robert Brown discovered the cell.(b) Schleiden and Schwann formulated the cell theory.(c) Virchow explained that cells are formed from pre-existing cells.(d) A unicellular organism carries out its life activities within a single cell.
Microtubules (a) have constant diameters, but vary in length (b) vary in diameter, but are constant in length (c) vary in both length and diameter (d) are constant in both length and diameter
Chapter 6 Solutions
Campbell Biology
Ch. 6.1 - Prob. 1CCCh. 6.1 - Prob. 2CCCh. 6.2 - Briefly describe the structure and function of the...Ch. 6.2 - DRAW IT Draw a simplified elongated cell that...Ch. 6.3 - What role do ribosomes play in carrying out...Ch. 6.3 - Describe the molecular composition of nucleoli and...Ch. 6.3 - Prob. 3CCCh. 6.4 - Describe the structural and functional...Ch. 6.4 - Describe how transport vesicles integrate the...Ch. 6.4 - WHAT IF? Imagine a protein that functions in the...
Ch. 6.5 - Describe two characteristics shared by...Ch. 6.5 - Prob. 2CCCh. 6.5 - Prob. 3CCCh. 6.6 - Prob. 1CCCh. 6.6 - WHAT IF? Males afflicted with Kartagener's...Ch. 6.7 - In what way are the cells of plants and animals...Ch. 6.7 - Prob. 2CCCh. 6.7 - MAKE CONNECTIONS The polypeptide chain that makes...Ch. 6.8 - Prob. 1CCCh. 6 - Prob. 6.1CRCh. 6 - Explain how the compartmental organization of a...Ch. 6 - Describe the relationship between the nucleus and...Ch. 6 - Describe the key role played by transport vesicles...Ch. 6 - What does the endosymbiont theory propose us the...Ch. 6 - Describe the role of motor proteins inside the...Ch. 6 - Prob. 6.7CRCh. 6 - When a cell ingests a bacterium, what role does...Ch. 6 - Prob. 1TYUCh. 6 - Prob. 2TYUCh. 6 - Which of the following is present in a prokaryotic...Ch. 6 - Prob. 4TYUCh. 6 - Which cell would be best for studying lysosomes?...Ch. 6 - Prob. 6TYUCh. 6 - EVOLUTION CONNECTION (a) What cell structures best...Ch. 6 - SCIENTIFIC INQUIRY Imagine protein X, destined to...Ch. 6 - WRITE ABOUT A THEME: ORGANIZATION Considering some...Ch. 6 - SYNTHESIZE YOUR KNOWLEDGE The cells in this SEM...
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- Which of the following is the most fundamental feature that enables the cell to function as a distinct entity, separate from its environment? (a) nucleus (b) ribosomes (c) nucleic acids (d) plasma membrane (e) proteinarrow_forward. Which structure is common to plant and animal cells?(A) chloroplast(B) central vacuole(C) mitochondrion(D) centriolearrow_forwardQ1: What structures do prokaryotic and eukaryotic cells have in common? Q2: What cellular processes occur in both prokaryotic and eukaryotic cells? Q3: Both plants and animals are eukaryotes, but there are differences in their cellular structure. What are those differences?arrow_forward
- 10. Membrane-bound organelles have been an important component in the evolution of complex, multicellular organisms. Which cells having internal membranes? the following best summarizes an advantage of eukaryotic (A) Eukaryotic cells are able to reproduce faster because of the presence of organelles. (B) Some organelles, such as mitochondria and chloroplasts, are similar to prokaryotic cells in structure. (C) Organelles isolate specific reactions, increasing metabolic efficiency. (D) Compartmentalization leads to a higher mutation rate in DNA, which leads to more new species.arrow_forwardWhat cell structures best reveal evolutionary unity? Provide an example of diversity related to specialized cellular modifications.arrow_forwardWhich of the following statements are TRUE about eukaryotes?(i) They are cells with a nucleus.(ii) They are found both in humans and multicellular organisms.(iii) Endoplasmic reticulum is present in eukaryotes.(iv) They all have chemically complexed cell wall. Select one: a. (i), (ii) and (iv) b. (i), (ii) and (iii) c. (ii), (iii) and (iv) d. (i), (iii) and (iv)arrow_forward
- CU: Structure and Function In the 1800s two scientists, Theodor Schwann and Matthias Schleiden, studied different types of organisms. After many years of studying a great variety of organisms, they drew similar but independent conclusions about their observations. Schwann studied animals and concluded that all animals are made of cells. Schleiden studied plants and concluded that all plants are made of cells. What statement was developed most directly from these conclusions and is part of the modern cell theory? Cells contain hereditary information. O Cells exist only in multicellular organisms. The functions of living things occur in cells. Living things are composed of cells. 1 2 3 4 5 6 DELL 441arrow_forwardThe most active site of protein synthesis is the (A) Nucleus (B) Ribosome (C) Mitochondrion (D) Cell saparrow_forwardAnswer the Guide Question: a) Each cell in an organism has all of the basic parts. Each has a function that benefits the other cells, how might the presence of different cell structures in plant and animal help them perform their functions as an organism. Explain. b) Why is the cell membrane considered as the guard of the cell? c) Why is the lysosome considered as the suicide bag of the cell?arrow_forward
- 26. All of the following are typical components of the plasma membrane of a eukaryotic cell EXCEPT (A) glycoproteins (B) cytochromes (C) cholesterol (D) phospholipids (E) integral proteins 27. The rate of division of most vertebrate cells is LEAST likely to be influenced by which of the following? (A) Contact with other cells (B) The availability of nutrients (C) Compounds that inhibit protein synthesis (D) The cell's photoperiod (E) The temperature of the organism 28. During respiration, most ATP is formed as a direct result of the net movement of (A) potassium against a concentration gradient (B) protons down a concentration gradient (C) electrons against a concentration gradient (D) electrons through a channel (E) sodium ions into the cell 29. Which of the following processes is carried out more efficiently by a C4 plant than by a C3 plant? (A) Light absorption (B) Chemiosmotic coupling (D) Photolysis (D) Fixation of CO, (E) Transport of sugars 30. A biologist isolates numerous…arrow_forwardWithout a properly functioning membrane, a cell would (a) not be able to give instructions to its organelles (b) not be able to hold a rigid shape (c) not be able to absorb sunlight (d) not be able to remove waste materialsarrow_forwardBased on Baluska et al. (2004)'s paper entitled "Eukaryotic Cells and their Cell Bodies: Cell Theory Revised" 1. What are the reasons why we need to revise the cell theory? Specify the parts why it is problematic and explain. 2. What is the cell body being proposed by Baluska (2004) and what makes it the ‘actual’ basic unit of life? Explain. 3. What is the cell periphery apparatus? How is it related to the aforementioned cell body? Explain.arrow_forward
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