how does form and function in nephrons allow reabsorption of just enough water to maintain osmotic balance? (Hint: "salt concentration gradient" will be a key part of your answer)
how does form and function in nephrons allow reabsorption of just enough water to maintain osmotic...
A concentration gradient affects the direction that solutes diffusion. Describe how molecules move with respect to the concentration. How does size affect the rate of diffusion? Does polarity affect the rate of diffusion? Explain your answer. If a piece of celery is placed in a glass of pure water, are the celery cells hypertonic, hypotonic or isotonic compared to the water? In which direction will water move? What is the water potential of pure water? Why don’t red blood cells...
Pre-Lab Questions A concentration gradient affects the direction that solutes diffusion. Describe how molecules move with respect to the concentration. How does size affect the rate of diffusion? Does polarity affect the rate of diffusion? Explain your answer. If a piece of celery is placed in a glass of pure water, are the celery cells hypertonic, hypotonic or isotonic compared to the water? In which direction will water move? What is the water potential of pure water? Why don’t red...
Just answer part 2 and 3 please (0.3 point) Part 1 ii See Periodic TableSee Hint A solution is created by dissolving 12.5 grams of ammonium chloride in enough water to make 355 mL of solution. How many moles of ammonium chloride are present in the resulting solution? moles of NH4CI 0.233 When chemists work with solid materials, we simply weigh out amounts of solid reagents and calculate mole amounts when thinking about stoichiometry. However, when we dissolve a solid...
Homework In this assignment you will be asked questions about water and osmotic pressure. Complete the assignment as directed and post your answer to the message board. Remember, do not upload files, I may not be able to open them so just leave everything on your post for me to read. You may use internet resources to respond but do not, that is do not, copy and paste from web sites. Also, using quotes does not make something your own...
2. *D1* Salt water is plentiful on earth; natural supplies of fresh water, on the other hand, are dwindling while mankind's demands grow. One appealing solution to this imbalance is to remove the salt from ocean water by some means. Here you will investigate the energy input that is necessary to accomplish this task. Special membranes can be manufactured that allow water, but not ions, to pass through. By pushing such a membrane through salt solution, one can separate salt...
How does soap function as an emulsifying agent for oil in water? Draw a picture of an oil droplet and several soap molecules to illustrate your answer.
does not dissociate Hydrochloric acid alkaline The pH of water is approximately 7, which means it is neutral partially dissociates fully dissociates when dissolved in water. acidic Complete these five statements by dragging the correct option into the space provided, then check your answer. (Maximum attempts: 5) an acidification volume an indicator a neutralisation When an acid and alkali react to form water and salt it is called A titration experiment can be used to determine the known concentration reaction....
All cells maintain a polarized plasma membrane. What role does polarization play in the function of neurons? You viewed your own cheek cells. What term best describes their shape? What is the function of the small projections (cilia) observed on the pseudostratified columnar slide? Skin cells, like those you observed in the section of scalp, produce keratin, a fibrous and water resistant protein. What role does keratin serve? What is the unifying feature of all the forms of connective tissue?...
11 A) At 25 ∘C, the osmotic pressure of a solution of the salt XY is 24.7 torr . What is the solubility product of XY at 25 ∘C? 8 A) Imagine that you are in chemistry lab and need to make 1.00 Lof a solution with a pH of 2.40. You have in front of you 100 mL of 7.00×10−2 M HCl, 100 mL of 5.00×10−2 M NaOH, and plenty of distilled water. You start to add HCl to...
Once contaminated, polluted water sources must be treated or they represent a hazard to local residents. We have mentioned before that lead (Pb2+) ions are a particularly dangerous pollutant. How do we remove ions that we can't even see? Here our understanding of solubility can help. If we add an anion that forms an insoluble salt with Pb2+ ions, we could filter off the solid that forms and remove much of the lead contamination. Use what you know to help....