5. To keep vegetables fresh, they are often placed in water. In this ___________

Question

5. To keep vegetables fresh, they are often placed in water. In this _________________ solution, the cells of the vegetable pull water from their environment into their central vacuoles leading to increased turgor pressure and a crisp, delicious, crunch.

6. The passive movement of molecules directly across a semipermeable membrane with the concentration gradient from an area of high concentration to an area of low concentration.

a- Simple diffusion                              

b- Facilitated diffusion                        

c- Osmosis

d- Active transport

7. The movement of molecules across a semipermeable membrane against the concentration gradient from an area of lower concentration to an area of higher concentration. This process requires a protein channel and energy.

a- Facilitated diffusion

b- Simple diffusion

c- Active transport

d- Osmosis

Explanation / Answer

5. To keep vegetables fresh, they are often placed in water. In this Hypotonic solution, the cells of the vegetable pull water from their environment into their central vacuoles leading to increased turgor pressure and a crisp, delicious, crunch.

[ Osmosis can be defined as the tendency of a fluid, usually water, to pass through a semipermeable membrane into a solution where the solventconcentration is higher, thus equalizing the concentrations ofmaterials on either side of the membrane. And a hypotonic solution is any solution that has a lower osmotic pressure than another solution. In the biological fields, this generally refers to a solution that has less solute and more water than another solution. ]

6. The passive movement of molecules directly across a semipermeable membrane with the concentration gradient from an area of high concentration to an area of low concentration. - b- Facilitated diffusion.

This process usually requires some carrier molecules associated with the cell membrane but without any input of free energy.

7. The movement of molecules across a semipermeable membrane against the concentration gradient from an area of lower concentration to an area of higher concentration. This process requires a protein channel and energy.

c- Active transport

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