Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134042435
Author: Michael D. Johnson
Publisher: PEARSON
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Chapter 3, Problem 7CR
Summary Introduction
To review:
The fate of the cell in a low salt or high salt environment.
Introduction:
The maintenance of the volume of a cell is important for various reasons. Cells try to regulate their cell volume by various mechanisms such as the sodium-potassium (Na+/K+) pump. The volume of the cell also depends on the concentration of the fluid surrounding it. In other words, it depends on the tonicity or the relative concentration of solutes such as sodium (Na+) ions in two different fluids (inside the cell and outside the cell).
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You have two types of cells (animal cells and plant cells) that you will place in a variety of conditions. Please describe what would happen to each of those two cells in the following solutions, i) isotonic solution; ii) hypertonic solution; iii) hypotonic solution.
If a scientist drops an animal cell into a solution that contains 10 times more salt than is found inside the cell, which of the following will happen? Hint: drawing a picture may help you.
A) The cell will burst since the solution is hypertonic
B) The cell will shrink since the solution is hypotonic.
C) The cell will burst since the solution is hypotonic.
D) The cell will shrink since the solution is hypertonic.
E) The cell will not change in size since the solution is isotonic.
What diseases and disorders will affect the regulations of liquid liquid phase separation in cells and what diseases and disorders will be caused if the regulations of liquid liquid phase separation is disrupted?
Chapter 3 Solutions
Human Biology: Concepts and Current Issues (8th Edition)
Ch. 3 -
1. What is your opinion on this controversy? What...Ch. 3 - Suppose that you held frozen embryos at a private...Ch. 3 - Prob. 1CRCh. 3 - Prob. 2CRCh. 3 - Describe how phospholipids are oriented in the...Ch. 3 - Define passive transport and name the three...Ch. 3 - Compare and contrast endocytosis and exocytosis.Ch. 3 - Describe the activity of the sodium-potassium pump...Ch. 3 - Prob. 7CRCh. 3 - Prob. 8CR
Ch. 3 -
9. What are the four stages of ATP production...Ch. 3 -
10. Describe what happens to a cell’s ability to...Ch. 3 -
1. Which of the following adaptations would...Ch. 3 - Which of the following is always at the same...Ch. 3 - Prob. 3TYCh. 3 - Red blood cells placed in distilled water will: a....Ch. 3 - Which organelles are most active during vigorous...Ch. 3 - Phagocytic white blood cells engulf and digest...Ch. 3 - Prob. 7TYCh. 3 -
8. Which organelles would be active in liver...Ch. 3 - Prob. 9TYCh. 3 -
10. Which of the following is/are the most...Ch. 3 - Prob. 11TYCh. 3 - Prob. 12TYCh. 3 -
13. In which stage of cell respiration does...Ch. 3 - Which of the following is/are recycled during...Ch. 3 - Most of the ATP produced during cell respiration...Ch. 3 - Imagine that you are shown two cells under the...Ch. 3 - The sodium-potassium pump is a large protein...Ch. 3 - Mitochondria resemble a bacterial cell in a number...Ch. 3 - Prob. 4AWKCh. 3 - Recently, a young man from Derby in the United...Ch. 3 - You have been selected to serve on a jury for a...Ch. 3 - Although normal physiological processes produce...
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- You fill a bag made of semipermeable membrane with a .5 mol/litre solution of sugar, seal it and immerse it into a .3mol/litre solution of salt and water. Which description best fits what will happen. 1) The environment is hypertonic to the contents, so the bag will shrink as water leaves the bag. 2)The environment is hypotonic to the contents, so the bag will expand as water enters the bag. 3) The environment is hypertonic to the contents, so the bag will expand as water enters the bag. 4) The environment is hypotonic to the contents, so the bag will shrink as water leaves the bag.arrow_forwardExplain the effects of putting a cell into a hypotonic, hypertonic, or isotonic medium.arrow_forwardMelvin, ace biology student, is making a display for Ms. Fishhawk's class to show what "isotonic," "hypertonic" and "hypotonic" mean. Melvin has a tank where the two sides are separated by a semi-permeable membrane. The figure shows the solutions that Melvin pours into each side of the tank. 30% starch 70% water A 5% starch 95% water B a. Label the figure to show which side is the hypertonic side and which is the hypotonic side.arrow_forward
- What phenomenon would you expect to see occurring under a microscope when healthy cells of E. coli bacteria are placed in a dish of distilled water? Briefly explain the underlying mechanism.arrow_forwardDescribe the biochemical composition of cells.arrow_forwardMelvin, ace biology student, is making a display for Ms. Fishhawk's class to show what "isotonic," "hypertonic" and "hypotonic" mean. Melvin has a tank where the two sides are separated by a semi-permeable membrane. The figure shows the solutions that Melvin pours into each side of the tank. 30% starch 70% water A 5% starch 95% water B the a. Label the figure to show which side is the hypertonic side and which is the hypotonic side. b. After loading the tank with the solutions, Melvin lets the tank sit for 20 minutes. Assuming membrane is the same as the dialysis membranes we used in lab, will the volume of the two solutions change? In what way?arrow_forward
- Molecules that can diffuse directly through the cell membrane without the aid of channels or carriers include?arrow_forwardWhat happens to cells in an isotonic, hypertonic and hypotonic solution? Why?arrow_forwardWhen the potato cube is surrounded by a hypotonic solution what change in mass occurs in the potato cells?arrow_forward
- Osmosis Define osmosis and why does blood cell become clear in distilled water?arrow_forwardIdentify the effects of isotonic, hypertonic, and hypotonic effects on a bacterial cell.arrow_forwardIdentify the biochemical building blocks that are the component of cell. Provide unique solution.arrow_forward
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