What are gap junctions Study guides, Class notes & Summaries
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NU 606 Exam 3: Chpt. 12, 13, 25, 26 Questions With Complete Solutions
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what are the two layers of the pericardial sac correct answer: outer fibrous pericardium anchors the heart to diaphragm 
visceral pericardium (epicardium) has a serous membrane 
 
what is unique about cardiac muscle (myocardial fibers) correct answer: - no nerves are present 
intercalated discs at the junctions between fibers (they contain desmosomes, connections to prevent muscle cells from separating during contraction, and gap junctions, which permit ions to pass from cell to cell which fac...
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ASU BIO 181: EXAM 2 QUESTIONS AND ANSWERS ALREADY PASSED
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ASU BIO 181: EXAM 2 QUESTIONS AND 
 
ANSWERS ALREADY PASSED 
 
90% of absorption in the intestine occurs where? The jejunum and the ileum 
 
A bacterium coated by antibodies is a signal that a macrophage should endocytose (eat) it 
true 
 
Adhering junctions are based on two different types of cytoskeleton filament systems. Name 
those systems. Actin Filament System 
Intermediate Filament System 
 
Any cell can present an antigen on a class I major histocompatibility complex (MHC) protein. 
true...
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Honors Biology Final Exam 2024 with Verified Solutions
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Honors Biology Final Exam 2024 with 
 
Verified Solutions 
 
What is the role of microtubules in cell division? 
 
 Microtubules form the mitotic spindle, which helps separate chromosomes into daughter 
cells during cell division. 
 
How does the concept of endosymbiosis explain the origin of mitochondria and chloroplasts? 
 Endosymbiosis suggests that mitochondria and chloroplasts originated from free-living 
prokaryotes that were engulfed by a host cell, establishing a mutualistic relationship...
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NURS 6501 ADVANCED PATHOPHYSIOLOGY EXAM WITH BEST SOLUTIONS
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NURS 6501 ADVANCED PATHOPHYSIOLOGY EXAM WITH BEST SOLUTIONS 
 
What is the plasma membrane? - encloses the cell and, by controlling the movement of substances across it, exerts a powerful influence on metabolic pathways 
 
What is signal transduction? - The transfer of molecular signals from the exterior to the interior of a cell. If not done apoptosis occurs 
 
What is protein regulation and what is it composed of? - protein homeostasis and is defined by the proteostasis network. This network i...
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Test Bank Porth Pathophysiology Concepts of Altered Health States 2nd Canadian Edition
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Test Bank Porth Pathophysiology Concepts of Altered Health States 2nd Canadian EditionTable of Contents Chapter 01: Concepts of Health and Disease .......................................................................................................... 2 Chapter 02: Concepts of Altered Health in Children ............................................................................................. 13 Chapter 03: Concepts of Altered Health in Older Adults ............................................
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BIOL 1201: Final Exam Questions with Verified Solutions
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BIOL 1201: Final Exam Questions with 
 
Verified Solutions 
 
What are the three types of cell signaling? 1. Direct Contact 
2. Local 
3. Distant 
 
Describe direct contact cell signaling and some examples. One cell actually physically 
touches another 
 
i.e. Gap Junctions (diffusion of signals through a plasma membrane), Plasmodesmata (diffusion 
of signals through a plasma membrane), and Cell-Cell Recognition (one cell have a type of 
signal molecule while the other cell has a receptor, and t...
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BMS 300 EXAM 2 (A+ GRADED)
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How are cells connected to each other and the extra-cellular matrix? correct answers -gap junctions 
-tight junctions 
-anchorning junctions 
 
How do we classify epithelial tissue? correct answers -cell shape 
-number of layers 
 
What is a Gap junction? correct answers Mediates cell to cell communication, 
Aggregates of intercellular channels that permit direct cell to cell transfer of ions and small molecules, 
 
What does a gap junction do? correct answers -connects to the cytoplasm in adja...
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Human Physiology Test I, Human Physiology Quiz |questions with correct answers
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What are the vessels that bring blood back to the heart? - ANSWERS: Superior and inferior vena cava 
 
what chamber of the vena cava go into? - ANSWERS: right atrium 
 
what determines heart rate? - ANSWERS: SA Node 
 
where is the SA node located? top of right atrium below where the superior vena cava comes in - ANSWERS: 
 
what structures are the end of cardiac cells joined at? - ANSWERS: Intercalated disks 
 
what is a desmosome? - ANSWERS: contained in intercalated disks 
- collagen fibers...
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Arizona State University BIO 202 Exam 1 Endocrine, Blood, Cardiac & Vascular Questions And Answers
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What are the mechanisms of cell communications? - CORRECT ANSWER-Gap 
junctions, neurotransmitters, paracrine (local) hormones, hormones (strict 
definition) 
What are paracrine (local) hormones? - CORRECT ANSWER-hormones 
secreted into tissue fluids to affect nearby cells 
What are hormones? - CORRECT ANSWER-chemical messengers that travel in 
the bloodstream, stimulates response in another tissue or organ 
What are target cells? - CORRECT ANSWER-Cells that have RECEPTORS for 
hormones 
What do...
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Test Bank Principles of Anatomy and Physiology, 12th Edition, by Bryan Derrickson, Gerald Tortora | Complete Guide A+
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Test Bank Principles of Anatomy and Physiology, 12th Edition, by Bryan Derrickson, Gerald Tortora Testbank Chapter 1. An Introduction to the Human Body Multiple Choice 1. This is the study of the functions of body structures. a. Anatomy b. Physiology c. Dissection d. Histology e. Immunology Ans: B Difficulty: easy Feedback: 1.1 2. This is defined as a group of cells with similar structure and function. a. Tissue b. Organ c. Molecules d. Compounds e. Organism Ans: A Difficulty: easy Feedback: 1.2...
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