Last Updated 23 Mar 2023

Osmosis and Simple Diffusion

Category Anatomy, Chemistry, Hair, Water
Words 519 (2 pages)
Views 557

Study guide questions: Movements through membrances 1. Prepare a graph that illustrate the diffusion distance of potassium in 10 minutes 2. Explain your graph : 3. Define simple diffusion: 4. Define osmosis: Osmosis can be defined as the movement of solvent molecules across a semipermeable or selectively permeable membrane ,from a region of lower concentration of the solute to that of a higher concentration till equilibrium is attained. 5.  The filtration by the fiter paper is done by the volume and the surface 8. What substance did not pass through the filter paper 9. What factor prevented these substances from passing through.

Abdominal impact injuries often involve the spleen. Explain the structural tissue characteristics that make the spleen so vulnerable to serious injury. 17. What cells produce the pigment in hair? 18. Distinguish the locations and tissues among epidermis, dermis, and subcutaneous layer 19. How do the cells of stratum corneum and stratum basale differ? 20. What part of hair extends from the hair papilla to the body surface 21.

In which layer of skin are sebaceous glands found 22. How are sebaceous gland associated with hair follicles 23. In what layer of skin are sweat glands usually located 24. Explain how bone cells embedded in solid ground substance obtain nutrients and eliminate wastes. By answering yes or no, indicate which of the following provides an example of simple diffusion. 1. A perfume bottle is opened, and soon the odor can be sensed in all parts of the room ----- 2. A sugar cube is opened into a cup of hot water, and without being stirred, all of the liquid becomes sweet tasting------- 3.

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Water molecules move from a faucet through a garden hose when the faucet is turned on ----- 4. A person blows air molecules into a balloon by forcefully exhaling-------- 5. A crystal of blue copper sulfate is placed in a test tube of water. The next day, the solid is gone, but the water is evenly colored------- By answering yes or no, indicate which of the following involves osmosis 1. A fresh potato is peeled, weighed, and soaked in a strong salt solution. The next day, it is discovered that the potato has lost weight ------ 2.

Garden grass wilts after being exposed to dry chemical fertilizer ------ 3. Air molecules escape from a punctured tire as a result of high pressure inside ----- 4. Plant seeds soaked in water swell and become several times as large as before soaking ---- 5. When the bulb of a thistle tube filled with is sealed by a selectively permeable membrane and submerged in a beaker of molasses’, the water level in the tube falls------- By answering yes of no, indicate which of the following involved filtration 1.

Oxygen molecules move into cell and carbon dioxide molecules leave a cell because of differences in the concentrations of these substances on either side of the cell membrane ------ 2. Blood pressure forces water molecules from the blood outward through the thin wall of a blood capillary ------- 3. Urine is forced from the urinary bladder through the tubular urethra by muscular contractions – 4. Air molecules enter the lungs through the airways when air pressure is greater outside these organs than inside------- 5. Coffee is made using a coffeemaker (not instant) ------

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Osmosis and Simple Diffusion essay

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