1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Arada [10]
3 years ago
6

Two test tubes are filled with a solution of bromthymol blue. A student exhales through a straw into each tube, and the bromthym

ol blue turns yellow. An aquatic green plant is placed in each tube, and the tubes are corked. One tube is placed in the dark, and the other tube is placed in direct sunlight. The yellow solution in the tube in sunlight turns blue, while the one in the dark remains yellow. Which statement best explains why the solution in the tube placed in sunlight returns to a blue color?
Question 11 options:

Oxygen was produced by photosynthesis.

Oxygen was removed by respiration.

Carbon dioxide was removed by photosynthesis.

Carbon dioxide was produced by respiration.
Biology
1 answer:
amid [387]3 years ago
8 0

Answer:

The correct answer is oxygen was produced by photosynthesis.

Explanation:

During the process of photosynthesis carbon dioxide is consumed and oxygen is released in presence of sunlight.

    when plant is placed in the yellow solution and kept in sunlight the plant undergo photosynthesis.As a result the yellow solution in the tube in presence of sunlight turns blue because oxygen is released by reduction which is responsible for the blue coloration of the solution.

  On the other hand the plant that is placed in dark unable to undergo photosynthesis due to which there is no change in color.

   

You might be interested in
1. ________ refers to the minimum amount of stimulus energy required to be detected 50% of the time. a. absolute threshold b. di
Tatiana [17]

Answer:Absolute Threshold

Explanation:

The sensitivity of any given sensory system to the relevant stimuli can be expressed as an absolute threshold

4 0
3 years ago
What would be a limiting factor in an ecosystem?
Feliz [49]
D. population and nutrients


4 0
3 years ago
Read 2 more answers
Diabetes is an autosomal______ disease.
saveliy_v [14]
It’s not an autosomal disease at all
8 0
3 years ago
Read 2 more answers
Which of the following is a product of photosynthesis?
grigory [225]
The answer is oxygen
hope it helps!
7 0
3 years ago
Read 2 more answers
What serves as a structure in a cell?
Sunny_sXe [5.5K]

Answer:

The cell membrane, or in plant cells, the cell wall

Explanation:

In a plant cell the cell wall helps maintain structure, and in animal cells, the cell membrane regulates what goes in and out of the cell and acts as a structure

8 0
3 years ago
Other questions:
  • Recall types of scientific inquiry that biologists engage in that cannot be completely controlled.
    7·2 answers
  • Which of the following is the best example of an ecosystem? A. a nest of mockingbirds, some bullfrogs, a pond, and a sandy shore
    8·2 answers
  • When the supplies of a product decrease, the price of the product tends to increase. How might continuing increases in the price
    10·1 answer
  • What are the four bases found in DNA?
    12·2 answers
  • Explain what is elimination​
    7·2 answers
  • Whats the difference between a plant and animal cell?
    14·2 answers
  • Identify Causes: What are some factors that might cause changes in the population of grasshoppers?
    6·1 answer
  • 6. Which of the following is true about hurricanes? *
    7·1 answer
  • It’s an astronomy question
    13·1 answer
  • When these clouds break apart, they let out buckets of rain or snow
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!