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8. Large “storage” compartment; holds contents (mostly water) for later use (pla

ID: 210370 • Letter: 8

Question

8. Large “storage” compartment; holds contents (mostly water) for later use (plants only)

9. Surrounds and protects DNA

   

10. A new employee at a pet store accidentally places some fresh water fish in a salt water tank. This is a deadly mistake because in this situation, the salt water is a _________________ solution.

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

Facilitated diffusion                 

Simple diffusion                      

Osmosis                      

Active transport

12. The substance in which a solute is being dissolved.          

Solvent                 

Solute                    

Diffusion                              

Solution

13. Produces cellular energy from food energy

14. Site of protein synthesis

15. The passive movement of molecules across a semipermeable membrane with the concentration gradient from an area of high concentration to an area of low concentration via a protein channel.

Facilitated diffusion           

Simple diffusion                 

Osmosis                

Active transport

16. Produces food energy from light energy (plants only)

      

17.

                                       -A.B.C.D.

Passive    process; Does not require energy.

                                       -A.B.C.D.

Requires energy

                                       -A.B.C.D.

Requires a protein channel

                                       -A.B.C.D.

Movement of water only!

A.

Diffusion

B.

Active Transport

C.

Active Transport & Facilitated Diffusion

D.

Osmosis

                                                                                               

18. The substance being dissolved in a solution.

Diffusion          

Solvent

Solute              

Solution

19. Site of lipid synthesis

      

20. In hospitals, patients may be given fluids intravenously. These fluids are prepared at a concentration of 0.9% sodium chloride so that the ion concentration in the fluid is equal to the ion concentration in human blood. The IV fluid is an example of an _____________________ solution.

Explanation / Answer

8. Large “storage” compartment; holds contents (mostly water) for later use (plants only)

Vacuole

Vacuoles are mostly present in plant cells and store water and some enzymes.

9. Surrounds and protects DNA

Nucleus

   

Nucleus surrounds the genetic content in eukaryotic cells and protects it from cytoplasmic enzymes.

10. A new employee at a pet store accidentally places some freshwater fish in a saltwater tank. This is a deadly mistake because, in this situation, the salt water is a hypertonic solution.

Now the environment inside the fish is hypotonic compared to hypertonic salt water, and thus the fish would not be able to osmoregulate efficiently.

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

The answer is osmosis.

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

Vacuole

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