Answer question 2 and 3 What would the difference be for an animal cell under the same condition in Question 2? Again, cell salt concentration is 150MM and the cutside salt concentration would be 500mMQUESTION 1Which of the following would be a reasonable definition of osmosis?O Movement of molecules from high concentration to equal concentration.• Movement of solvent moiecules across a semipermeable membraneMovement of solute molecules across a semipermeable membraneO Movement of solvent molecules across a semipermeable membrane to equalize concentrations on each side of the membraneQUESTION 2You have a plant cell containing 150mM salt concentration You add a 500mM sall solution to the outside of the cell What would the autside solution concentrafion be compared to the cell concentation?HypertonicHypotonicIsotonicNone of theseQUESTION 3If we look at the leaves of the plant under the condition in Question 2 what would be observe?The leaves would appear healthy and expandedThe leaves would become willed and droopyThe leaves would not change their appearanceO Tha leaves vould fall off the plantQUESTION 4OThe cell would shrink and collapse.Cick Save and Submit to save and eubmit. Click Save All Ansuers to save all answers

Osmosis is a phenomenon in which water molecules move through selectively permeable membrane from a…

Answered: QUESTION 2 You have a plant cell…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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For fusion of a vesicle with its target membrane tooccur, the membranes have to be brought to within 1.5 nmso that the two bilayers can join (Figure Q13–1). Assum-ing that the relevant portions of the two membranes at thefusion site are circular regions 1.5 nm in diameter, calcu-late the number of water molecules that would remainbetween the membranes. (Water is 55.5 M and the volumeof a cylinder is πr2h.) Given that an average phospholipid occupies a membrane surface area of 0.2 nm2, how manyphospholipids would be present in each of the opposingmonolayers at the fusion site? Are there sufficient watermolecules to bind to the hydrophilic head groups of thisnumber of phospholipids? (It is estimated that 10–12 watermolecules are normally associated with each phospho-lipid head group at the exposed surface of a membrane.)
A blood cell with a 2% internal solute concentration is placed in a solution that has a 0.2% solute concentration. The solute is impermeable to the plasma membrane. How would you classify the solution compared to the cell – hypotonic, hypertonic or isotonic? Why? (2 pts.) B) Will the solutes move across the membrane? Why or why not? C) What type of transport would occur in this situation – diffusion, facilitated diffusion, osmosis, active transport or bulk transport. Explain. D) What would happen if the cell began to produce a new membrane protein that allowed the solutes to freely move in across the membrane? ould this change your answer to Part C? Explain.
1) a) Draw arrows to indicate which direction Na+ vs K+ions will tend to move.(into vsout of the cell) b) What prevents these solutes from diffusing across the membrane at a significant rate? c)If the solutes were unable to move across the membrane, would the cell be considered hypertonic, hypotonic or isotonic? d) If the solutes were unable to move across the membrane, which way would water move?(inside the cell, outside the cell or no net movement) e) How did the cell establish the differential in the shown ion concentrations in the first place?
41. A TRANSPORT MECHANISM ACROSS A MEMBRANE WHERE THE MOVEMENT OF THE SOLUTION IS FROM HIGHER TO LOWER CONCENTRATION UNTIL SUCH TIME THAT EQUILIBRIUM IS ESTABLISHED?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS 42. BIOMOLECULES ARE HYDROLYZED FIRST INTO THEIR SIMPLEST FORM BEFORE THEY CAN BE ABSORBED BY THE TISSUES. GLUCOSE ABSORPTION IS THROUGH WHICH OF THE FOLLOWING?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS 43. A TRANSPORT MECHANISM THROUGH MEMBRANE WHICH NEEDS ATP?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS 44. TRANSPORT MECHANISM ACROSS MEMBRANE OF GASES?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS 45. A TRANSPORT MECHANISM IN WHICH SMALLER PARTICLES PASSES THROUGH MEMBRANE BUT NOT THE BIG ONE?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS
In osmosis, water moves from an area of low solute concentration (high water concentration) to an area of high solute concentration (low water concentration). So, it's the movement of water that helps balance the concentration of solutes on both sides of a semipermeable membrane. My question is when water move from high concentration to low concentration ,it's the movement of water making it balance. So why does it says in definition low solutue concentration going to that high solutue concentration, isn't it make the solute like ion and other molecules going to the higher side and not making it balance. High concentration of water to low concentration water movement is make sense to me But low solute cocentration to high solute concentration part does not make sense at all Please explain how does low concerned ntration solute going to high concentration of solute making balance?
Information: Osmotic pressure is the pressure that a solvent exerts against a semipermeable membrane, such as a cell membrane. The higher the solute concentration, the lower the osmotic pressure. Red blood cells have an osmotic pressure equal to that of a 0.90% (m/v) solution of sodium chloride and 5.0% (m/v) solution of dextrose. A solution that has a higher concentration that this is called hypertonic; one with a lower concentration is called hypotonic. Osmotic pressure is an important factor affecting cells. Osmoregulation is the homeostasis mechanism of an organism to reach balance in osmotic pressure.Hypertonicity is the presence of a solution that causes cells to shrink.Hypotonicity is the presence of a solution that causes cells to swell.Isotonicity is the presence of a solution that produces no change in cell volume.When a biological cell is in a hypotonic environment, the cell interior accumulates water, water flows across the cell membrane into the cell, causing it to…
In your words explain passive transport by osmosis using isotonic, hypertonic, and hypotonic in both animal and plant cell.
7) Which is the best definition of osmosis?a) movement of molecules from an area of their higher concentration to an area of their lower concentrationb) movement of water across a membrane from an area of high concentration to a lower concentration.c) movement of molecules from an area of their lower concentration to an area of their higher concentration.d) movement of water across a semipermeable membrane from an area of low concentration to a higher water concentration with the use of ATP.e) movement of water across a semipermeable membrane from an area of high concentration to a lower concentration.8) Transcriptional factors are required for transcription in all the following organisms except: a) Protozoa b) Bacteria c) Archaea d) Eukarya e) b & c.9) The composition of the flagellar apparatus is more complex in ___ as compared to Prokaryotes: a) Protozoa b) Bacteria c) Archaea d) Mycota e) a & d
which surface to volume ratio woud be the most efficient for transmembrane transport of substance in cells
The following are the characteristics of the setup depicted below: The left side has a higher concentration of "yellow spheres" than the right side. The blue solution is water, and the yellow spheres dissolve in water (i.e. are osmoles). The dotted orange line is a semi-permeable membrane with characteristics exactly the same as a cell's plasma membrane. Below are TWO "If" statements that are separate questions. IF the yellow spheres are freely permeable across the dotted line, the process of [ Select ] ["facilitated diffusion", "active transport", "simple diffusion", "osmosis"] will occur. Consequently, the volume of water on the left side will [ Select ] ["stay the same", "decrease", "increase"] IF the yellow spheres cannot cross the membrane at all, the process of [ Select ] ["osmosis", "facilitated…
Which of the following statements are correct? Explain your answers. The plasma membrane is highly impermeable to all charged molecules. Channels have specific binding pockets for the solute molecules they allow to pass. Transporters allow solutes to cross a membrane at much faster rates than do channels. Certain H+ pumps are fueled by light energy. The plasma membrane of many animal cells contains open K+ channels, yet the K+ concentration in the cytosol is much higher than outside the cell. A symport would function as an antiport if its orientation in the membrane were reversed (i.e., if the portion of the molecule normally exposed to the cytosol faced the outside of the cell instead). The membrane potential of an axon temporarily becomes more negative when an action potential excites it.
6. A carrot, when dried out, becomes soft. There is a way to make it firm and crisp. Explain how and why, using the following guidelines. a) Draw and label a representative cell of the carrot, in its dried state. Be precise in your drawing. b)Describe the type of extracellular solution that is appropriate to add to make the desired change (name and define what type of solution, the net movements of solvent and solutes, etc.). c)Draw a representative cell of the carrot, in its possible state after the change. Represent the movement of water using an arrow to indicate what has happened.

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