MOD.MASTERING BIO+CAMPBELL ETXT CODE
18th Edition
ISBN: 9781323749531
Author: Pearson
Publisher: PEARSON C
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Textbook Question
Chapter 6.2, Problem 2CC
DRAW IT Ø Draw a simplified elongated cell that measures 125×1×1 arbitrary units. A nerve cell would be roughly this shape. Predict how its surface-to-volume ratio would compare with those in Figure 6.7. Then calculate the ratio and check your prediction.
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This activity will help you remember the functions of select cellular structures.
Choose 5 or more cellular structures and write an analogy about how those structures function together in an everyday system. The analogous system should be something you already know (e.g., football organization, factory, etc.). Be sure to use only one every day system that incorporates all 5+ cellular structures (and not a different, unrelated system for each structure).
Be sure to:
Include 5 or more cellular structures
Relating all the cellular structures to a single everyday system
Accurately representing the analogous functions of the cellular structures
Be creative and unique
fill in the blank
The repolarization phase of action potentials in neurons is due primarily to ............(ion) flow out of the cell
Circle one: is a tissue membrane the same thing as a plasma membrane? Yes or No
Chapter 6 Solutions
MOD.MASTERING BIO+CAMPBELL ETXT CODE
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 - Which structure is not part of the endomembrane...Ch. 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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- Cytoplasmic extensions of _______ send and receive chemical messages. a. neuroglial cells b. neurons c. fibroblasts d. melanocytesarrow_forwardVisit this site (http://openstaxcollege.org/l/nervetissue3) to learn about how nervous tissue is composed of neurons and glial cells. The neurons are dynamic cells with the ability to make a vast number of connections and to respond incredibly quickly to stimuli and to initiate movements based on those stimuli. They are the focus of intense research as failures in physiology can lead to devastating illnesses. Why are neurons only found in animals? Based on what this article says about neuron function, why wouldnt they be helpful for plants or microorganisms?arrow_forwardFigure 35.3 Which of the following statements is false? The soma is the cell body of a nerve cell. Myelin sheath provides an insulating layer to the dendrites. Axons carry the signal from the soma to the target. Dendrites carry the signal to the soma.arrow_forward
- Cytoplasmic extensions of _______ send and receive chemical messages. a. glial cells b. neurons c. fibroblasts d. melanocytesarrow_forwardMost tumors that originate in the brain are not cancer, but growth of any tumor within the confined space of the skull can put pressure on .surrounding nervous tissue and thus harm neurons. Treating brain tumors with drugs is difficult because of the blood-brain barrier. Lipid-soluble drugs can penetrate this barrier, but they get into and affect all other cells too. Explain why.arrow_forwardmolecular components not cellular.Answer carefully. Question: In terms of nerve action, describe 4 different molecular components involved. And for each, give a defect that would block nerve function.arrow_forward
- DRAW IT Three of the events described in the figure are ion flow; change in membrane potential; andopening, closing, or inactivation of channels. Use these events to draw a simple circuit diagram for thepositive feedback that underlies the rising phase of the action potential.arrow_forwardWhat cell type is this? Explain why Fibroblasts Epithelial cells Lymphocytes Macrophages the photo is of stained mammalian cellsthat are under under a compound light microscope at 400x total magnification. the cells were treated with cell fixing agent, methylene blue stain, and eosin stain.arrow_forwardNeurons have long thin processes called axons, structuresspecialized for conducting signals throughout the organism’s nervous system. Some axonal processes can be as long as 2 m—for example, the axons that originate in your spinal cord and terminate in the muscles of your toes. Small membrane-enclosed vesicles carrying materials essential to axonal function move along microtubules of the cytoskeleton, from the cell body to the tips of the axons. If the average velocity of a vesicle is 1 μm/s, how long does it take a vesicle to move from a cell body in the spinal cord to the axonal tip in the toes?arrow_forward
- Dendritic spines have an _______ cytoskeleton an average number of ________ per neuron. microtubule, 1-11 actin, 20 actin, 200,000 intermediate filament, 500,000arrow_forwardFill in the blanks: When a nerve cell is at rest, there is a relatively greater concentration of _______________________ ions outsideof its membrane.arrow_forward**Please just answer the questions no need for explanation** 1) What effect would the toxin have on a cell with a non-excitable membrane in the man's body? Answer choice (Hyperpolarization, Afterhyperpolarization, No effect, Depolarization) b)True/false A cell membrane can have a membrane potential of 0mV c) True/false If the effect of EPSPs from many synapses outweighs the effect of many IPSPs from many synapses, threshold potential can be reached at the initial segment. d) true/false Under normal conditions, one EPSP, from a single synapse on a dendrite, can stimulate an action potential at the initial segment. e) True/false A cell affected by tetrodotoxin would have an action potential firing rate in the initial segment of the axon of about 100 action potentials per secondarrow_forward
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