Biology, 30.11.2020 23:30 hooplikenari

A student poured a solution of bromthymol blue indicator into three test tubes. Then, he placed an aquatic plant in two of the test tubes. He placed a stopper on each test tube and placed them all in the dark for 24 hours. Bromthymol blue turns from blue to yellow in the Presence of CO2. Question 1 - Which process or processes would you expect the organisms in the test tubes to carry out? Cellular Respiration, photosynthesis or both?

Question 2 - What is the purpose of the bromthymol blue in the experiment? How can the student use this indicator to draw conclusions about the processes that the aquatic plants are carrying out?

Question 3 - Predict what colour the test tubes will be 24 hours in the dark?

Question 4 - The student takes test tube 3 (after it has been in the dark for 24 hours) and out it in a sunny window, predict what will happen to the colour of the test tube. Give reasoning to support your prediction.

Answers: 2

Show answers

Another question on Biology

Biology, 21.06.2019 19:30

Agroup of students are walking in the park, and one of them takes a picture of a pollen grain that is being blown by the wind.what caption can the student use for this picture? fahrte "littl1111111nimmt-hhhfull film# # #gene mutation in actiongene flow at workgenetic drift as it happensnatural selection in progresshii

Answers: 2

Answer

Biology, 21.06.2019 19:40

In german cockroaches, curved wing (cv) is recessive to normal wing (cv+). bill, who is raising cockroaches in his dorm room, finds that the frequency of the gene for curved wings in his cockroach population is 0.6. in his friend joe’s apartment, the frequency of the gene for curved wings is 0.2. one day joe visits bill in his dorm room, and several cockroaches jump out of joe’s hair and join the population in bill’s room. bill estimates that, now, 10% of the cockroaches in his dorm room are individual roaches that jumped out of joe’s hair. what is the new frequency of curved wings among cockroaches in bill’s room? 0.69 0.4 0.5 0.31 0.20

Answers: 1

Answer

Biology, 22.06.2019 03:30

Which of the following typically characterizes a tropical rainforests

Answers: 1

Answer

Biology, 22.06.2019 08:00

When a doggo starts to pace around in the same line for a hand full of days. what would that mean?

Answers: 2

Answer

You know the right answer?

A student poured a solution of bromthymol blue indicator into three test tubes. Then, he placed an a...