Cotransport - Study guides, Revision notes & Summaries

transport proteins - are responsible for controlling passage across the membrane fluid mosaic model - The membrane is a mosaic of protein molecules bobbing in a fluid bilayer of phospholipids fatty acid tails - nonpolar, hydrophobic fatty acid heads - hydrophilic, polar periphial proteins - bound to the surface of the membrane integral proteins - penetrate the hydrophobic core (ones that span the membrane are transmembrane protiens How do cells recognize each other? - by binding to molec...

Exam 2: BIO1201/ BIO 1201 Study Guide (Latest 2024/ 2025 Update) | Questions and Verified Answers| 100% Correct| Grade A – LSU Q: transport proteins allow passage of hydrophilic substances across the membrane Q: carrier proteins Answer: bind to molecules and change shape to shuttle them across the membrane Q: passive transport Answer: the diffusion of a substance across a membrane with no energy investment Q: Diffusuion Answer: Spreading out of partic...

LOOP EXAM 2 QUESTIONS & ANSWERS 2024/2025 Location And Mechanism Of Action - ANSWERS"Thick Ascending Limb" - Loop Of Henle ***Blocks Na+/K+/2CL- Cotransport w/in Tubules Luminal Membrane = ↓ reabsorption of electrolytes ↑Secretion/↑Excretion: Na+, K+, CL-, Mg2+, Ca2+ "loops Lose Ca2+" ↑Dilute Urine Excretion ↑Prostaglandin Synthesis = ↑Renal Blood Flow = ↑Solute Delivery to Nephron Indications - ANSWERSStrongest Diuretic 1st Line Agent: ***CHF = Ac...

in order to micturate, the following must happen (3): - ️️- contraction of the internal urethral sphincter - contraction of the external urethral sphincter - relaxation of the detrusor muscle order of parts of nephron (7) - ️️1. glomerulus 2. glomerulus capsule 3. proximal convoluted tubules (PCT) 4. descending limb of the Loop of Henle 5. ascending limb of the Loop of Henle 6. distal convoluted tubules (DCT) 7. collecting ducts what are the functions of the urinary system? - ...

Biol 1201 Exam 2 Gregg Latest Update Already Passed Plasma membrane A selectively-permeable phospholipid bilayer forming the boundary of the cells. Hydrophilic heads and hydrophobic tails peripheral proteins Bound to the surface of the membrane Integral proteins penetrate the hydrophobic core Transport proteins Span membrane. Allow passage of hydrophilic substances functions of plasma membrane transport, enzymatic activity, signal transduction, cell-cell recognition, intercel...

HUMAN ANATOMY AND PHYSIOLOGY NEWEST EXAM QUESTIONS AND CORRECT ANSWERS ALREADY GRADED A+. Hypotonic - ANSWER- net water movement into cell. Cells swell and lyse. Filtration - ANSWER- occurs along a pressure gradient (high pressure to low pressure). Not a selective process, common in kidney Active transport - ANSWER- Requires energy (ATP) for movement against a concentration gradient, from low to high sodium-potassium pump - ANSWER- used to establish membrane potential. Energy (A...

BRS PHYSIOLOGY EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED 2024/2025 During thyroid hormone synthesis, how is iodide transported into the cell? I pump or Na-I cotransport These transporters actively transport iodine into the cell Inhibited by thiocynate and perchlorate anions How are adrenal androgens excreted? Lost as 17-ketosteroids in the urine How are estrogens produced? The A ring of testosterone is oxidized (aromatization) This occurs in the ovaries and placenta, but not in the...

approximately neutralIn order for phospholipids to form bilayers spontaneously in an aqueous environment, the pH should be: Answer> approximately neutral Which choice is considered an integral membrane protein? Answer> a protein with its amino-terminus in the cytoplasm and its carboxyterminus in the extracellular space In intestinal epithelial cells, a transport protein moves the bulky, polar glucose molecules through the membrane into the cytoplasm, while simultaneously transpo...

Nutrition and Metabolism Exam 3 Study Guide (APHY 102) Verified questions and answers Where is SGLT1 predominantly expressed? - CORRECT ANSWER-Sodium dependent glucose transporter: brain, heart, enterocytes What are the pathophysiological conditions that affect fructose uptake rate in the body? - CORRECT ANSWER-Fructosuria, hereditary fructose intolerance, and 1-6 biphosphatase deficiency How are nutrient molecules taken in enterocytes? - CORRECT ANSWER-Sugars: Transporters Prot...

physical characteristics of the kidneys: - - wrapped in fat capsule - bean shaped - laterally convex - medial indentation 3 major processes that result in urine formation - - glomerular formation - tubular reabsorption - tubular secretion according to the myogenic regulation of GFR, an increase in BP = AAs stretch and an increase in GFR is countered by: - vasoconstriction of AA to bring GFR back down to normal Because of various endocrinological issues, your patient has been struggling ...