Chemistry, 12.09.2019 21:30, villafana36

Astudent has four snails, four sprigs of elodea, eight test tubes of bromothymol blue, and two rooms (light and dark). the student wants to know what gases are produced by the snails and elodea in light and dark conditions. assuming the student only has time for one experiment, what setup will yield the most complete data?

Answers: 1

Show answers

Similar questions

Biology, 28.06.2019 02:30, amylumey2005

All organisms are dependent on a healthy carbon dioxide-oxygen balance. photosynthesis and cellular respiration are key processes in maintaining this balance. your class is conducting a lab experiment to investigate the relationship between photosynthesis and cellular respiration by observing how carbon dioxide cycles through a biological system. to conduct the experiment, each group set up four test tubes containing 30 ml distilled water and 3 ml of bromothymol blue. bromothymol blue is a ph indicator that changes from blue (alkaline) to yellow (acid). when carbon dioxide dissolves in water, it produces carbonic acid, turning the indicator from blue to yellow. the level of co2 was inferred from a change in the indicator color. a snail, elodea (aquatic plant), or both were added to the tubes and they were stoppered. tubes were placed under a grow light for 24 hours and the results recorded. the test tubes were then covered for 24 hours to produce a dark environment and the results recorded. which statement best explains the change in test tube d from the light setup to the dark setup. a) the rate of photosynthesis decreased in the dark, thus the elodea used less co2. the elodea and snails produced less co2 through cellular respiration, causing the co2 to be in equilibrium, making the solution more neutral (yellow). b) the rate of photosynthesis decreased in the dark, thus the elodea used less co2. the elodea and snails continued to produce co2 through cellular respiration, raising the level of co2 in the tube, causing the solution to become more acidic (yellow). c) the rate of photosynthesis decreased in the dark, thus the elodea used more co2. the elodea and snails continued to consume co2 through cellular respiration, lowering the level of co2 in the tube, causing the solution to become more basic (yellow). d) the rate of photosynthesis decreased in the dark, thus the elodea used less co2. the elodea and snails continued to consume co2 through cellular respiration, raising the level of co2 in the tube, causing the solution to become more acidic (yellow). eliminate

Answers: 1

continue

Biology, 01.11.2019 21:31, maria5633

Iwill give more then 50 points for this question pleas ! i will give ! carbon dioxide production in snails & elodea test tube contents initial color light set up dark set up tube a: control green green green tube b: elodea green blue green tube c: snail green yellow yellow tube d: elodea and snail green green yellow all organisms are dependent on a healthy carbon dioxide-oxygen balance. photosynthesis and cellular respiration are key processes in maintaining this balance. your class is conducting a lab experiment to investigate the relationship between photosynthesis and cellular respiration by observing how carbon dioxide cycles through a biological system. to conduct the experiment, each group set up four test tubes containing 30 ml distilled water and 3 ml of bromothymol blue. bromothymol blue is a ph indicator that changes from blue (alkaline) to yellow (acid). when carbon dioxide dissolves in water, it produces carbonic acid, turning the indicator from blue to yellow. the level of co2 was inferred from a change in the indicator color. a snail, elodea (aquatic plant), or both were added to the tubes and they were stoppered. tubes were placed under a grow light for 24 hours and the results recorded. the test tubes were then covered for 24 hours to produce a dark environment and the results recorded. which statement best explains the change in test tube d from the light setup to the dark setup. a) the rate of photosynthesis decreased in the dark, thus the elodea used less co2. the elodea and snails produced less co2 through cellular respiration, causing the co2 to be in equilibrium, making the solution more neutral (yellow). b) the rate of photosynthesis decreased in the dark, thus the elodea used less co2. the elodea and snails continued to produce co2 through cellular respiration, raising the level of co2 in the tube, causing the solution to become more acidic (yellow). c) the rate of photosynthesis decreased in the dark, thus the elodea used more co2. the elodea and snails continued to consume co2 through cellular respiration, lowering the level of co2 in the tube, causing the solution to become more basic (yellow). d) the rate of photosynthesis decreased in the dark, thus the elodea used less co2. the elodea and snails continued to consume co2 through cellular respiration, raising the level of co2 in the tube, causing the solution to become more acidic (yellow).

Answers: 1

continue

Biology, 01.11.2019 22:31, ansley81

Carbon dioxide production in snails & elodea test tube contents initial color light set up dark set up tube a: control green green green tube b: elodea green blue green tube c: snail green yellow yellow tube d: elodea and snail green green yellow all organisms are dependent on a healthy carbon dioxide-oxygen balance. photosynthesis and cellular respiration are key processes in maintaining this balance. your class is conducting a lab experiment to investigate the relationship between photosynthesis and cellular respiration by observing how carbon dioxide cycles through a biological system. to conduct the experiment, each group set up four test tubes containing 30 ml distilled water and 3 ml of bromothymol blue. bromothymol blue is a ph indicator that changes from blue (alkaline) to yellow (acid). when carbon dioxide dissolves in water, it produces carbonic acid, turning the indicator from blue to yellow. the level of co2 was inferred from a change in the indicator color. a snail, elodea (aquatic plant), or both were added to the tubes and they were stoppered. tubes were placed under a grow light for 24 hours and the results recorded. the test tubes were then covered for 24 hours to produce a dark environment and the results recorded. which statement best explains the change in test tube d from the light setup to the dark setup. a) the rate of photosynthesis decreased in the dark, thus the elodea used less co2. the elodea and snails produced less co2 through cellular respiration, causing the co2 to be in equilibrium, making the solution more neutral (yellow). b) the rate of photosynthesis decreased in the dark, thus the elodea used less co2. the elodea and snails continued to produce co2 through cellular respiration, raising the level of co2 in the tube, causing the solution to become more acidic (yellow). c) the rate of photosynthesis decreased in the dark, thus the elodea used more co2. the elodea and snails continued to consume co2 through cellular respiration, lowering the level of co2 in the tube, causing the solution to become more basic (yellow). d) the rate of photosynthesis decreased in the dark, thus the elodea used less co2. the elodea and snails continued to consume co2 through cellular respiration, raising the level of co2 in the tube, causing the solution to become more acidic (yellow).

Answers: 1

continue

Do you know the correct answer?

Astudent has four snails, four sprigs of elodea, eight test tubes of bromothymol blue, and two rooms...

Questions in other subjects:

Mathematics, 09.10.2019 12:30

What steps did you take to bisect an angle?...

German, 09.10.2019 12:30

How did martin luther react when peasant rebels took up his banner as a means of bringing about social change in germany?...

Health, 09.10.2019 12:30

Causes of peripapillary choroidal neovascularization...

Mathematics, 09.10.2019 12:30

One of the main goals in studying geometry is to develop your ability to reason critically, to draw valid conclusions based upon observations and proven facts. master detectives do...

English, 09.10.2019 12:30

Select the correct answer. does the verb agree with the subject in this sentence? they put all the balls in the locker. a. yes b. no...

Mathematics, 09.10.2019 12:30

Plzz the floor of a rectangular living room is 12 meters by 5 .what isthe distance between oppisite corners of the living room....

Mathematics, 09.10.2019 12:30

Write an equation for the function that includes the points (-2,3) and (-1,9)...

Business, 09.10.2019 12:30

When using the ice-point method to calibrate a thermometer, you should:...

History, 09.10.2019 12:30

2. why did the supreme court rule against william marbury even though it believed he should get his job back?...

English, 09.10.2019 12:30

Read the passage and choose the letter of the word or group of words that belongs in each space. identify the letter of the response you have chosen. in minnesota, wint...

Other tasks in the category: Chemistry More task