Review Sheet Exercise 1 Cell Transport Mechanisms and Permeability Activity 1: Simulating Dialysis (Simple Diffusion) • Describe two variables that affect the rate of diffusion: Two variables that affect the rate of diffusion are size and concentration gradient. The molecular size vs the MWCO size of the membrane can either increase‚ decrease‚ or prevent diffusion. The greater the concentration gradient the greater the diffusion rate due to molecules moving from areas of higher concentration
Free Diffusion Molecular diffusion Osmosis
progressive kidney disease and is characterized clinically by the increased blood pressure‚ occurrence of albuminuria and a gradual loss of kidney function (1). The morphological changes associated with early phase DN comprise diffuse thickening of the glomerular capillary basement membrane together with the nodular glomerulosclerosis (2). Although the pathophysiology of DN is mainly occur due to hyperglycemia‚ it is believed to involve a combination of genetic and environmental factors. Crucially‚ DN is
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require the use of ATP energy. During passive processes‚ molecules are transported through the membrane by differences in concentration or pressure between the inside and outside of the cell. Two important types of passive process are diffusion and filtration. Every cell in the human body uses diffusion as an important transport process through its selectively permeable membrane. During diffusion‚ molecules that are small enough to pass through a membrane’s pores or molecules that can dissolve in the
Free Diffusion Molecular diffusion Solution
* A reactant in an enzyme-catalyzed reaction is called a substrate. The area of the enzyme that binds to the substrate is called the active site - where the action takes place. * Cofactors and coenzymes are small molecules or ions that help enzymes to act. HSC Biology Notes – Hugh Phillips Maintaining a Balance 1.Most organisms are active in a limited temperature range: Identify the role of enzymes in metabolism‚ describe their chemical composition and use a simple model to describe their
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damage of endothelial tissues‚ as part of tubulo-interstitial damge‚ and vascular insufficiency may lead to severe harmful rounds of tissue ischemia and hypoxia‚ sequentially involving renal cellular function. The combination of vascular inadequacy‚ glomerular hypertension‚ and interstitial fibrosis is a destructive set of self-reinforcing processes that extends injury‚ inhibits restoration‚ and lead to progressive tissue injury. Refrence : Chawla‚ L.‚ Eggers‚ P.‚ Star‚ R. and Kimmel‚ P. (2014). Acute
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CHAPTER 1 INTRODUCTION 1.1 INTRODUCTION Calcium is the largest mineral in the human body‚ where it plays an important role in absorption and the releasing of calcium in the body is through the intestinal and kidney. The calcium in the body is controlled by hormones and vitamins (Takano et al). The three major components that involve in the controller the calcium is parathyroid hormone (PTH)‚ calcitonin and Vitamin D. The consistent the calcium in the body from despite variation in-take and excretion
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1. What is the molecular weight of Na+? 22.99 2. What is the molecular weight of Cl-? 35.45 3. Which MWCO dialysis membranes allowed both of these ions through?50‚ 100 and 200 4. Which materials diffused from the left beaker to the right beaker Urea‚ NaCl and glucose diffused 5. Which did not? Why? Albumin‚ because it is too large to diffuse Activity 2: Simulating Dialysis 1. What happens to the urea concentration in the left beaker (the patient)? Its concentration gradient
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CLINICAL CHEMISTRY – defined as the study of biochemical processes associated with health & dse & the measurement of constituents in body fluids or tissues to facilitate dx of dse - dual nature since it’s both a basic and applied science thus clin chem. technologists & technicians should have an understanding of the physiologic & biochemical processes occurring in the body‚ as well as technical skills to perform the various tests - chemistry in connection with the management
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widely-used technique to purify a solid mixture. The desired product is isolated from its impurities by differences in solubility. Insoluble impurities and colored impurities can be removed from hot solvent through the use of activated carbon and filtration. Soluble impurities remain in the cold solvent after recrystallization. The desired product should be as soluble as
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of pure compound is in the range of 169-172 ℃. During lab Paracetamol medication was dissolved in water‚ purified and recrystallized again. The purpose of the experiment was to learn basic recrystallization techniques that include hot and cold filtration. During experimental procedure sample was purified and its final melting point was measured. Procedure 1.0 g of impure Paracetamol was added to the flask with 2 boiling chips. 30 mL of distilled water were poured to the flask and the obtain
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