Biology, 27.11.2019 07:31 aubreymoore9441
1.during diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will a) move across the membrane to the outside of the cell.
b) stop moving across the membrane.
c) continue to move across the membrane in both directions.
d) move across the membrane to the inside of the cell.
2.an animal cell that is surrounded by fresh water will burst because the osmotic pressure causes (1 point)
a) water to move into the cell.
b) water to move out of the cell.
c) solutes to move into the cell.
d) solutes to move out of the cell. 3.which of the following statements is true? (1 point)
a) during active transport, a material may be moved from an area of low concentration to an area of high concentration.
b) during passive transport, energy is used to move material against a concentration gradient.
c) during active transport, water is pumped across a membrane to equalize the concentration of salts on both sides.
d) during passive transport, osmosis allows salts to move from one side of the membrane to the other to equalize concentrations on both sides.
Answers: 3
Biology, 22.06.2019 11:30, brayden2275
To store strawberries in sugar syrup, lucy placed them in a jar and covered them with sugar but did not add any water. do you think syrup will be formed? justify. a. no. since water is not added, there cannot be any syrup formation. b. no. the higher concentration of sugar on the outside will cause the water from the sugar to diffuse in the strawberry cells causing them to swell without formation of any syrup. c. yes. the higher concentration of sugar on the outside will cause the water from the strawberry to diffuse out resulting in syrup formation. d. yes. the sugar will melt over time and form the syrup.
Answers: 2
Biology, 22.06.2019 15:30, cheerthi16
What process creates gametes? a. fertilization b. mitosis c. meiosis
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Biology, 22.06.2019 16:30, gujaratif932
Which of the following is an example of competition a. the leaves of a tree prevent a small shrub from getting sunlight. three species of birds feed a different heights in the same tree. b. three species of birds feed at different heights in the same tree c. zebra and giraffe’s feed on different grassland plants d. cats living in two different homes eat the same brand of cat food.
Answers: 1
1.during diffusion, when the concentration of molecules on both sides of a membrane is the same, the...
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