Biology

Biology, 15.07.2019 04:30, lele12319

Astudent hypothesized that the green color of plant leaves is related to exposure to sunlight and tested this hypothesis by placing a dark green plant in a dark closet. three days later, the student discovered that the plant was a much lighter shade of green. which statement is most likely the conclusion the student reached?

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Biology, 27.07.2019 03:30, TerronRice

Ascientist follows this procedure to test whether plants have been performing photosynthesis. place plant x in a dark closet and plant y on a sunny windowsill. wait several days, then remove a leaf from each plant. boil leaves in alcohol to remove the chlorophyll. add a chemical indicator that detects sugars. (dark purple = sugars are present; dark orange = sugars are not present) what results will the scientist most likely obtain when placing drops of the indicator on the leaves? 1: plant x: dark purple plant y: dark purple 2: plant x: dark orange plant y: dark purple 3: plant x: dark orange plant y: dark orange 4: plant x: dark purple plant y: dark orange

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Biology, 11.09.2019 22:30, tsunommygames

Astudent wants to test if a bean plant will grow taller under green light than under sunlight. select fror the drop-down menu the correct step of the scientific method that each statement describes two identical bean plants are grown next to each other. they receive the same amount of water and sunlight. one plant is covered with a green, light-filtering plastic cover, and the other with a clear plastic cover. measurements of the bean plants' heights are recorded every day for two weeks the student writes a lab report detailing the experimental procedure and results the bean plant grown under the green filter will grow taller than the bean plant grown under unfiltered sunlight green light makes plants grow taller the measurements show that the plant grown in natural sunlight grew taller than the green-filtered plant so green light does not make plants grow taller

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Chemistry, 18.09.2019 18:30, Lollipop1287

Astudent hypothesized that the green color of plant leaves is related to exposure to sunlight and tested this hypothesis by placing a dark green plant in a dark closet. three days later, the student discovered that the plant was a much lighter shade of green. which statement is most likely the conclusion the student reached

Answers: 1

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Biology, 28.10.2019 21:31, reeseleprell4141

Astudent performed an experiment to demonstrate that a plant needs chlorophyll for photosynthesis. he used plants that had green leaves with white areas. after exposing the plants to sunlight, he removed a leaf from each plant and processed the leaves to remove the chlorophyll. he then tested each leaf for the presence of starch. starch was found in the area of the leaf that was green, and no starch was found in the area of the leaf that was white. he concluded that chlorophyll is necessary for photosynthesis. which statement represents an assumption the student had to make in order to draw this conclusion? (1) starch is synthesized from the glucose produced in the green areas of the leaf. (2) starch is converted to chlorophyll in the green areas of the leaf. (3) the white areas of the leaf do not have cells. (4) the green areas of the leaf are heterotrophic.

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