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
VikaD [51]
2 years ago
13

Americans spend up to $100 billion annually for bottled water (41 billion gallons). The only beverages with higher sales are car

bonated soft drinks. Recent news stories have highlighted the fact that most bottled water comes from municipal water supplies (the same source as your tap water), although it may undergo an extra purification step called reverse osmosis. Imagine two tanks that are separated by a membrane that is permeable to water, but not to the dissolved minerals present in the water. Tank A contains tap water and tank B contains the purified water. In the reverse osmosis process, pressure is applied to the tap water tank to force the water molecules across the membrane into the pure water tank. Suppose that while the reverse osmosis system is running tank B becomes contaminated with salt water such that it ends up with a higher salt concentration than tank A. What would happen if the reverse osmosis system was turned off?
Biology
1 answer:
Nimfa-mama [501]2 years ago
5 0

Answer:

Answer: C) be hypertonic to Tank B.

Explanation:

The ability of an extracellular solution to move water in or out of a cell by osmosis is known as its tonicity. Additionally, the tonicity of a solution is related to its osmolarity, which is the total concentration of all the solutes in the solution.

Three terms (hypothonic, isotonic and hypertonic) are used to compare the osmolarity of a solution with respect to the osmolarity of the liquid that is found after the membrane.  When we use these terms, we only take into account solutes that can not cross the membrane, which in this case are minerals.

If the liquid in tank A has a lower osmolarity (lower concentration of solute) than the liquid in tank B, the liquid in tank A would be hypotonic with respect to the latter.

If the liquid in tank A has a greater osmolarity (higher concentration of solute) than the liquid in tank B, the liquid in tank A would be hypertonic with respect to the latter.

If the liquid in tank A has the same osmolarity (equal concentration of solute) as the liquid in tank B, the liquid in tank A would be isotonic with respect to the latter.

In the case of the problem, option A is impossible because the minerals can not cross the membrane, since it is permeable to water only. There is no way that the concentration of minerals decreases in tank A, so the solution in this tank can not be hypotonic with respect to the one in Tank B.

Equally, both solutions can not be isotonic and neither we can say that the solution in tank A has more minerals that the one in tank B because the liquid present in tank B is purified water that should not have minerals. Therefore, options B and D are also not correct.

Finally, the correct option is C, since in the purification procedure the water is extracted from the solution in tank A to obtain a greater quantity of purified water in tank B. In this way, the solution in Tank A would be hypertonic to Tank B.

√ Mark me brain thanks if you can!

You might be interested in
What are the roles of quality, policy and objectives in the University? (Answer in 300 words)​
Aleksandr-060686 [28]

The role of quality policy and objectives in the university is to define the purpose and strategic direction followed by the school authorities.

The quality policy is usually written in a brief statement which describes the vision, mission and the objective of the university. The importance (roles) of quality policy and objectives in an university includes:

  • Establishing a quality policy makes its known that the university operates with ethical standards that should not be disobeyed.
  • It serves as a requirement for any formalized quality management system.
  • It can serve as a way to drive passion for cultural change within an organisation (university)
  • It serves as a reminder to both employees and students of the university about their commitment to quality.

Learn more here:

brainly.com/question/7498492

8 0
2 years ago
Please help I can’t figure it out
antiseptic1488 [7]

Answer:

1) Both are surrounded by a cell membrane.

2) Both contain cytoplasm.

3) Only eukaryotic cells have a nucleus.

4) Only eukaryotic cells have membrane-bound organelles.

5) Both tend to be microscopic in size.

6) Only eukaryotes are either multicellular or unicellular.

7) Only prokaryotes are only single-celled.

4 0
2 years ago
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Amanda [17]

Answer:

C

Explanation:

Animals that don't adapt to their new environment die

6 0
3 years ago
Fill in the blank with the appropriate term. 1.The___________ is often considered to be the cell's control center. 2.The________
ValentinkaMS [17]
 1.The nucleus is often considered to be the cell's control center.
(because it contains the DNA)

2.The cytoplasm consists of everything inside the plasma membrane of the cell.
(actually it excludes the nucleus)

 3.The plasma membrane forms a boundary between the inside and outside of the cell. - it controls what can enter and what can't!


4.The cytoskeleton is essentially a "skeleton" inside the cell..
it maintains the form of the cell

5.The rough endoplasmic reticulum is covered with
Ribosomes -they make the proteins!


6.Lysosomes use enzymes to break down foreign matter and dead cells.

 7.plant cells cells specifically have a cell wall, a large central vacuole, and chloroplasts.-choloplasts are only found in plants!

3 0
3 years ago
Read 2 more answers
What Representative organism for roundworm
Bas_tet [7]
Roundworms or nematodes<span> constitute the phylum Nematoda. They are a diverse </span>animal phylum inhabiting a broad range of environments. The most essential representative for this group is the <span>Bursaphelenchus xylophilus. Hope this answers your question. Have a great day!</span>
8 0
3 years ago
Other questions:
  • Witch one came 1st . . . chicken or the egg . . .
    14·2 answers
  • Identify the word in italics.
    8·2 answers
  • The type of protein-energy malnutrition characterized by a general lack of protein in the diet is called __.
    5·1 answer
  • Farm animals can be classified based on what
    14·2 answers
  • Want to get a memory from short term to long term? You have to show a little love to your
    9·1 answer
  • Out of these possibilities, and they could have more than one answer, what kinds of energy are these?
    14·1 answer
  • I WILL GIVE 75 POINTS AND BRAINLYEST
    6·2 answers
  • How many phases are in "mitosis"?
    10·2 answers
  • Please answer fast!! ​
    12·1 answer
  • How air pollution affects environment and living thing
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!