Intercellular junctions Study guides, Class notes & Summaries

Robbins Basic Pathology 10th Edition Kymar Abbas Test Bank apter 1. The Cell as a Unit of Health and Disease 1 The nucleus _________, which is essential for function and survival of the cell. A) is the site of protein synthesis B) contains the genetic code C) transforms cellular energy D) initiates aerobic metabolism 2 Although energy is not made in mitochondria, they are known as the power plants of the cell because they: A) contain RNA for protein synthesis. B) utilize glycolysis fo...

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...

What are the 3 cell functions? - Aain integrity and shape of a cell n nutrients and form chemical building blocks 3. dispose of wastes strengthens the cell membrane and stabilizes it at temperature extremes - Answer-cholesterol a "coating of sugar" on the cells surfaces - Answer-glycocalyx kinetic energy inherent within a a substance as it moves down its concentration gradient (diffusion & Osmosis) - Answer-passive transport movement of a solute against its concentration gradient - Answ...

cell - Answer smallest unit of life function: carry out vital processes of absorption, assimilation, respiration, irritability, conductivity, growth, reproduction and excretion exo/endocytosis - Answer exocytosis: expulsion of materials out of cell EX= EXIT endocytosis: uptake of materials into cell EN=ENTER -pinocytosis: cell drinking (pino=wine=drinking) -phagocytosis: cell eating cell membrane - Answer plasma membrane surrounds celll composed of phospholipid bilayer an...

cell membrane phospholipids outer vs inner leaflets Outer Leaflet: C-E-Sphi PhospatidylCholine, PhosphatidylEthanolamine, Sphingomyelin Inner Leaflet: S-I PhosphatidylSerine, PhosphatidylInositol cell membrane major lipoprotein source of cholesterol LDL INTERCELLULLAR STRUCTURES Disk-shaped; For tight intercellular adhesion found in?? Macula Adherens (Desmosomes) think STAPLER wires! epithelium INTERCELLULLAR STRUCTURES • Ring-shaped • increases surface a...

rRNA is synthesized here - nucleolus intercellular junction type in the intestines - tight junctions emphysema in what part of the lung - alveolar duct Norepi causes the production of melatonin in what location by stimulating cAMP production - pinealocytes nuclear protamines are synthesized where - (late stage) spermatids a protein translated on a ribosome is directed to the ER because why? - a hydrophobic signal sequence is encoded into the protein at its amino terminus what causes th...

Cell Signaling and Apoptosis Types of Signaling • A ligand is a molecule that has specificity for a given receptor, and the binding of a ligand to the given receptor causes a change. • There is a wide array of cell ligands: hormones, peptides, sugars, and even small, hydrophobic molecules. • Regardless of its type, a ligand is always specific for the target receptor. This ligand-to-receptor specificity helps to regulate responses in the target cell while not impacting non-target cell...

APHY 101 Ivy Tech Exam 2 Midterm Questions and Answers – Latest 2024/2025 | Graded. is the pigment produced by melanocytes ANS Melanin 2. The primary characteristic of muscle tissue if their ability to ANS contract 3. Localized redness, swelling, warmth and pain are indications of ANS inflammation/infection 4. The of the subcutaneous layer acts as a heat insulator ANS adipose 5. The four tissue types are muscle, nervous, connective and ANS epithelial APHY 101 Ivy Tech Exam 2 Midte...

PNB Unit 3: Heart (Molecular) Exam 2024 2 similarities between skeletal and cardiac muscle cells -Answer-striated sarcomeres - sliding filament model how are the fibers of cardiac myocytes organized in the heart -Answer-fibers are arranged to wrap around the chambers so when contract, they squeeze the chambers of the heart and reduce their volume to create the pumping 3 features unique to cardiac muscle compared to skeletal -Answer-bifurcations anastomoses intercalated disks bifurcation...

Compare and contrast the endocrine system and the nervous system. Make sure you understand the differences between a neurotransmitter and a hormone, addressing the importance of receptor specificity. - ANSWER-Endocrine - Uses hormones released by endocrine glands Effects many effector organs (i.e. HGH to all muscles) Is slower and longer lasting Nervous - Uses electricity and chemicals to send a fast message Has a specific effector organ (i.e. certain muscle) Uses neurotransmitters releas...