Tight junctions Study guides, Class notes & Summaries

Testbank for Biology 2nd Edition from OpenStax CollegeChapter 1 1 Figure 1.6 1: C; 2: F; 3: A; 4: B; 5: D; 6: E. The original hypothesis is incorrect, as the coffeemaker works when plugged into the outlet. Alternative hypotheses include that the toaster might be broken or that the toaster wasn't turned on. 3 Figure 1.16 Communities exist within populations which exist within ecosystems. 4 B 6 D 8 C 10 C 12 B 14 D 16 Answers will vary, but should apply the steps of the scientific method. One poss...

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...

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...

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,...

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,...

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...

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...

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...

TEST BANK FOR UNDERSTANDING PATHOPHYSIOLOGY (6TH ED) BY SUE E. HUETHER, KATHRYN L. MCCANCE TEST BANK FOR UNDERSTANDING PATHOPHYSIOLOGY (6TH ED) BY SUE E. HUETHER, KATHRYN L. MCCANCE TEST BANK FOR UNDERSTANDING PATHOPHYSIOLOGY (6TH ED) BY SUE E. HUETHER, KATHRYN L. MCCANCE PART ONE: BASIC CONCEPTS OF PATHOPHYSIOLOGY Unit 1: The Cell 1. Cellular Biology 2. Genes and Genetic Diseases 3. Epigenetics and Disease (NEW) 4. Altered Cellular and Tissue Biology 5. Fluids and Electrolytes,...

What do you think would happen if the elastic fibers in tissues were distensible but not elastic? - ANSWER This would cause the tissues to be unable to resume their original shape and size once the stretching forces were removed. Predict what would happen if the tight junctions in blood vessels were not functional. - ANSWER Tight junctions make the spaces between the cells relatively impermeable to water and many solutes. Nonfunctional tight junctions in blood vessels would allow much of the ...

Tissues groups of similar cells organized to execute the same function histology study of tissues organs comprised of various tissues in a structural or functional unit organ system when organs work together for a specific task level of cellular organization cells, tissues, organs, organ systems Extracellular Matrix The substance in which animal tissue cells are embedded, consisting of mostly glycoproteins, secreted by fibroblasts of connective tissue, medium for cell recognition usin...