Tight junctions Samenvattingen, Aantekeningen en Examens
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PSU BMB 252 EXAM 3 | QUESTIONS AND 100% CORRECT ANSWERS | LATEST UPDATE |GRADED A+
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What is the ECM? 
ANS 
Extracellular matrix 
a network of proteins and polysaccharide chains that are secreted by cells 
What are the two forms of the ECM? What are they each? 
ANS 
ECM of connective tissue= fibrous polymers like collagen 
Basal Lamina= flexible, thin mat of specialized ECM that underlies epithelial cell sheets 
and tubes 
What are the two ways that cells are attached in tissue? 
ANS 
either to the basal lamina or to the ECM and to each other 
What are the 4 main types of junct...
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Testbank for Biology 2nd Edition from OpenStax College
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Testbank for Biology 2nd Edition from OpenStax Collegeable of Contents Chapter 1 ................................................................................................................................. 2 Chapter 2 ................................................................................................................................. 2 Chapter 4 ................................................................................................................................. 5 Cha...
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Understanding Pathophysiology 7th Edition Test Bank: : Understanding Pathophysiology 7th edition by Huether, McCance: Updated A+ Guide Solution: 100%Verified Questions & Answers(Complete)
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1.	A student is observing a cell under the microscope. It is observed to have supercoiled DNA with histones. Which of the following would also be observed by the student? 
a.	A single circular chromosome 
b.	A nucleus 
c.	Free-floating nuclear material 
d.	No organelles 
 
ANS: B 
 
The cell described is a eukaryotic cell, so it has histones and a supercoiled DNA within its nucleus; thus, the nucleus should be observed. 
 
A single circular chromosome is characteristic of prokaryotic cells, whic...
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BIO 101 FINAL- STRAIGHTER-LINE EXAM/ BIO 101 STRAIGHTERLINE FINAL EXAM/ RECENT UPDATE 2023- 2024 QUESTIONS AND CORRECT ANSWERS/ ALREADY GRADED A+
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Which intercellular junction allows for the rapid movement of small molecules or 
ions to flow from one animal cell to the next? 
a. gap junctions 
b. tight junctions 
c. adhesion junctions 
d. desmosomes 
e. plasmodesmata > ANSWER: gap junctions 
When a lysosome fuses with a vacuole, 
a. they both disappear. 
b. they both return to the Golgi apparatus. 
c. protein synthesis begins. 
d. division begins. 
e. its contents are digested. > ANSWER: its contents are digested 
According to cell...
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Rio Bio 202 Exam 2 2023 with verified solutions
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Tunica Intima correct answersinternal-contains endothelium 
 
Tunica Media correct answers(middle)-layers of elastin and smooth muscle cells, where vasoconstriction/dilation occurs 
 
Tunica Externa correct answers(external)-loosely woven collagen fibers, also contains nerves/elastin fibers/lymph vessels 
 
Elastic Arteries correct answers(Conducting)-located near the heart, aorta and branches, largest in diameter 
 
Muscular Arteries correct answers(Distributing)-majority of 'named' arteries,...
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NURS 5315 Advanced Pathophysiology TEST 2 ELSEVIER QUESTIONS AND ANSWERS.
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NURS 5315 Advanced Pathophysiology TEST 2 ELSEVIER QUESTIONS AND ANSWERS. Chapter 7 Innate Immunity Questions 
1. 1.ID: 80 
Which of the following is an example of a physical barrier? 
A. Antibacterial fatty acids 
B. Lysozymes in tears 
C. Epithelial cells Correct 
Epithelial cells form tight junctions that are a physical barrier to entry for organisms. 
Sebaceous glands in the skin secrete antibacterial and antifungal fatty acids. Earwax 
and lysozymes in tears are examples of biochemical secr...
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VTNE: Pharmacology Questions and Answers 100% Pass
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VTNE: Pharmacology Questions and Answers 100% Pass Who regulates controlled drugs? The FDA (Food and Drug Administration) and the DEA (Drug Enforcement Administration) 
C-I Schedule I drugs have the most abuse potential and no current medically acceptable use Marajuana, heroin 
C-II Schedule II drugs have a high abuse potential and are prone to cause severe dependence Written prescription only (except in emergencies with written script within 72 hrs) No refills Morphine, oxycodone, amphetamines,...
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Understanding Pathophysiology 7th Edition Test Bank by Sue Huether and Kathryn McCance
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Understanding Pathophysiology 7th Edition Test Bank 
Chapter 1. Cellular Biology 
MULTIPLE CHOICE 
1. A student is observing a cell under the microscope. It is observed to have supercoiled DNA 
with histones. Which of the following would also be observed by the student? 
a. A single circular chromosome 
b. A nucleus 
c. Free-floating nuclear material 
d. No organelles 
ANS: B 
The cell described is a eukaryotic cell, so it has histones and a supercoiled DNA within its 
nucleus; thus, the nucleus...
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Portage Learning BIOD 101 Module 1 Problem Set Essential Biology I with Lab 202 Bowman
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Portage Learning BIOD 101 Module 1 Problem Set Essential Biology I with Lab 202 Bowman 
 
4/6/22, 10:26 PM Module 1 Problem Set: Essential Biology I with Lab-2021- Bowman 
Answer: Matter is anything that takes up space, by having a 
volume, and has mass. Matter can exist in a solid, liquid or 
gaseous (vapor) state. All matter is made up of certain basic 
substances called elements (See section 1.1 in module). 
Your Answer: 
Matter is anything that takes up space, by having a volume, and has 
ma...
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G2 Gas Technician Module 12 2023 with 100% correct answers
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What does an Aquastat do? - correct answer Its an automatic operating switch (normally open). Sense water temperature of a boiler and closes when temperature drops. 
 
What does a low water cut off do? - correct answer Automatic safety control (normally closed). Senses water level in the boiler. If level drops the switch opens and shuts off the gas valve. 
 
in series with gas valve.,What does a water flow switch do? - correct answer Automatic safety control (normally open). Senses water flow an...
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Anatomy and Physiology I Final exam test bank 20222023 (questions and answers) GRADED A UPDATE
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Question 1 Correct 1.00 points out of 1.00 Flag question Question text In an ecosystem, energy Select one: a. comes ultimately from bacteria b. cycles along with chemical nutrients c. typically flows from producers through a series of consumers d. typically flows from consumers to producers to decomposers Question 2 Correct 1.00 points out of 1.00 Flag question Question text Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hierarchy from least in...