6. What unit of measurement is often used to measure cell size? A. Millimeter B.
ID: 148356 • Letter: 6
Question
6. What unit of measurement is often used to measure cell size? A. Millimeter B. Micrometer C. Hectometer D. Centimeter 7. Movement of a substance from an area of higher concentration to one where it is less concentrated is known as A. equilibrium. B. active transport. C. diffusion. D. facilitation. E. selective transport. 8 Diffusion rate is fastest when the concentration gradient is A. steepest and temperature is highest. B. steepest and temperature is at body temperature. C. slightest and temperature is highest. D. slightest and temperature is at body temperature. E. slightest and temperature is lowest. 9. Osmosis is the diffusion of A. water within the inside of a cell. B. water across a membrane. C. solutes within the inside of a cell. D. solutes across a membrane 10. When a cell is placed in a solution with a very low solute concentration, water diffuses into the cell. Such a solution is called a(n)solution. A. hypertonic B. hypotonic C. isotonic D. endergonic 11. Cell shrinking, also known as crenation, occurs when a cell is placed into a(n)- solution. - A. isotonic B. hypertonic C. hypotonic D. exergonicExplanation / Answer
(6)b.micrometer because all other measurements are used for big size molecules or things.Cells are seen at microscopic level.
(7)c.diffusion,it is defined as the flow of molecules from high concentration to low concentration.
(8)a.steeper and tempreature is high.
(9)b.water across a membrane
(10).b.hypotonic
(11).b.hypertonic
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