NaCl‚ an influx of water occurs: the cells swell‚ the integrity of their membranes is disrupted‚ allowing the escape of their hemoglobin in the process of hemolysis because the solution is hypotonic. When 0.7% NaCl was added to the bloods‚ there is no net influx or efflux of water because the solution is isotonic. When 0.16 M NaCl was added to the bloods‚ the cells lose their normal biconcave shape‚ undergoing
Premium Cell membrane Osmosis Protein
change in mass Exercise 1D 1) If a potato core is allowed to dehydrate by sitting in the open air‚ would the water potential of the potato cells decrease or increase? As it dehydrates‚ the solutes become more concentrated so the solute potential becomes more negative and it decreases. 2) If a plant cell has a lower water potential than its surrounding environment and if pressure is equal to zero‚ is the cell hypertonic (in terms of solute concentration) or hypotonic to its environment? Will the cell
Premium Osmosis Diffusion Chemistry
Bio 30 Cell Questions Question Sheet McDougal Littell Biology Textbook – Page 70 3.1 Cell Theory 1. Explain the three major principles of cell theory in your own words. 2. What characteristics are shared by most cells? 3. How did improvements in the microscope help scientists form the cell theory? 4. How do prokaryotic and eukaryotic cells differ? 5. Today‚ scientists can study human cell grown in petri dishes. Explain how this technique builds on the work of early
Premium DNA Cell Organelle
III. Research- Sport drinks are most times are divided into three groups‚ which are Isotonic‚ Hypertonic‚ and Hypotonic. They are categorized by the concentration of electrolytes. Isotonic sports drinks contain similar concentrations of electrolytes as those found in the human body. Hypertonic sports drinks contain higher concentrations of electrolytes than what is found in the body. Hypotonic sport drinks contain a lower concentration of electrolytes than what is contained in the body
Premium Electrolyte Sports drink Potassium
Key Terms Active transport: membrane proteins use cellular energy (usually ATP) to move molecules or ions across a plasma membrane against their concentration gradient. Allele: different forms of a gene • genotype – the combination of alleles in an organism. Aquaporin: a specialised channel protein in the plasma membrane of a cell‚ which is selectively permeable to water. Attachment protein: a protein in the plasma membrane of a cell that attaches either to the cytoskeleton inside the cell‚
Premium Cell membrane Cell
of blood plasma‚ not of total body water. Bothe are regulated through independent mechanisms in humans and should not be conflated. Some authors have reported three types of dehydration based on serum sodium levels : hypotonic or hyponatremic‚ hypertonic or hypernatremic‚ and isotonic or isometric. Indeed‚ in humans‚ it has been commonly thought that the most commonly
Premium Water Blood Kidney
potential. 2. When the two solutions on either sides of the membrane are equal and no net movement is detected‚ the solutions are isotonic. This means that the solutions have the same concentration of solutes. If two solutions differ in the concentration of solutes that each has‚ the one with more solute is hypertonic. The solution that has less solute is hypotonic. 3. This experiment was performed to measure the osmosis of small molecules through cellulose bag (has the same structure that plant
Premium Osmosis Semipermeable membrane Diffusion
The purpose of this lab was to observe the rate of osmosis and diffusion‚ as well as the effect of molecular size of the particles on this rate. Part I of the lab was a demonstration of osmosis and diffusion‚ that dealt with raisins in different liquid environments‚ each with a different concentration of sugar. Part IV of the lab was using the same idea as the demonstration‚ by putting objects in different concentrations of a substance; in this case elodea leaves in salt water. In both cases‚ the
Premium Chemistry Water Concentration
Identify causes of specific types of hyponatremia and hypernatremia‚ including drug-induced causes * Hyponatremia * Hypotonic: Renal and Nonrenal Losses‚ Polydipsia‚ SIADH‚ HypOthyroidism‚ CHF‚ Cirrhosis‚ Adrenal insufficiency‚ Nephrotic Syndrome/CRF * Isotonic: Hyperlipidemia‚ Hyperproteinemia * 275-290 mOsm/L * Hypertonic: Hyperglycemia‚ Mannitol‚ Sorbitol * >290 mOsm/L * Hypernatremia * Hypovolemic: Free water loss
Premium Diabetes insipidus
membrane between the solvent on the other side. The water then moves through the membrane to make the solution more isotonic‚ which means that each side will have an equal amount of water to glucose ratio. With osmosis there are also processes that do not end so well in the concentrations being equal. In hypotonic solutions water flows into a low concentration area‚ in a hypertonic solution water is forced out
Premium Osmosis Diffusion Concentration