If an intact cell is incubated with an enzyme that digests proteins so that all the (parts of) proteins on the outer surface of the cell are removed, will the cell be able to receive any environmental signals? Explain.Circle the correct answer. Osmosis is a type of...simple diffusionfacilitated diffusionprimary active transportsecondary active transportnone of the aboveLiver cells are in contact with the blood and exchange a variety of substances with the blood plasma (the noncellular part of blood). The concentration of water is equal in the cytoplasm of liver cells and in the blood plasma. Explain this observation in terms of membrane permeability and transport mechanisms.Animal cells typically maintain a higher concentration of Na+ outside the cell and a higher concentration of K+ inside the cell via the Na+-K+ pump. The drug ouabain inhibits the activity of the Na+-K+ pump. A nerve cell is incubated in ouabain. Predict what will happen to the concentrations of Na+ and K+ inside and outside the nerve cell as a result.You are studying how a newly discovered virus in bats enters their cells. When you examine cells that have taken up the virus, you find virus particles inside clathrin-coated vesicles. What membrane transport mechanismis the virus using to get inside the bat cells?Diatoms are protists that have complex glassy structures in their cell walls. These structures form within the Golgi apparatus. How do these structures reach the cell wall without having to pass through the plasma membrane?What is the evolutionary advantage of bacteria that have flagella vs. bacteria that do not?What are three functions of the cell nucleus? If all the lysosomes in a cell suddenly burst open, what would be the most likely result?More proteins would be made.The DNA within mitochondria would break down.The mitochondria and chloroplasts would divide.There would be no change in cell functions.The macromolecules in the cell would break down.What are two functions of a plant cell vacuole? In a dividing cell, the duplicated sets of chromosomes move along microtubules to opposite ends of the cell. How would you use an inhibitor to show that microtubules are essential for chromosome separation? What control treatment(s) would you use?What kind of cell junctions would you expect to find, and why, in a small animal where a chemical signal passes rapidly through cells to go from the head to the tail?Which statement about thermodynamics is true?The total amount of energy can change after a chemical reaction.Free energy can be kinetic, but not potential, energy.Free energy is used up in an exergonic reaction.Free energy cannot be used to do work.Entropy tends to increase.Circle the best answer. In an enzyme-catalyzed reaction,strain may be added to the substratethe rate decreases as substrate concentration increasesthe enzyme can be permanently changedthe rate is not affected by substrate concentrationa substrate does not change

Lipid molecule has a structure with hydrophilic heads that connect with water and nonpolar tails…

Answered: If an intact cell is incubated with an…

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter3: The Plasma Membrane And Membrane Potential

Section: Chapter Questions

Problem 6RE

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If an intact cell is incubated with an enzyme that digests proteins so that all the (parts of) proteins on the outer surface of the cell are removed, will the cell be able to receive any environmental signals? Explain.
Circle the correct answer. Osmosis is a type of...
1. simple diffusion
2. facilitated diffusion
3. primary active transport
4. secondary active transport
5. none of the above
Liver cells are in contact with the blood and exchange a variety of substances with the blood plasma (the noncellular part of blood). The concentration of water is equal in the cytoplasm of liver cells and in the blood plasma. Explain this observation in terms of membrane permeability and transport mechanisms.
Animal cells typically maintain a higher concentration of Na⁺ outside the cell and a higher concentration of K⁺ inside the cell via the Na⁺-K⁺ pump. The drug ouabain inhibits the activity of the Na⁺-K⁺ pump. A nerve cell is incubated in ouabain. Predict what will happen to the concentrations of Na⁺ and K⁺ inside and outside the nerve cell as a result.
You are studying how a newly discovered virus in bats enters their cells. When you examine cells that have taken up the virus, you find virus particles inside clathrin-coated vesicles. What membrane transport mechanismis the virus using to get inside the bat cells?
Diatoms are protists that have complex glassy structures in their cell walls. These structures form within the Golgi apparatus. How do these structures reach the cell wall without having to pass through the plasma membrane?
What is the evolutionary advantage of bacteria that have flagella vs. bacteria that do not?
What are three functions of the cell nucleus?
If all the lysosomes in a cell suddenly burst open, what would be the most likely result?
1. More proteins would be made.
2. The DNA within mitochondria would break down.
3. The mitochondria and chloroplasts would divide.
4. There would be no change in cell functions.
5. The macromolecules in the cell would break down.
What are two functions of a plant cell vacuole?
In a dividing cell, the duplicated sets of chromosomes move along microtubules to opposite ends of the cell. How would you use an inhibitor to show that microtubules are essential for chromosome separation? What control treatment(s) would you use?
What kind of cell junctions would you expect to find, and why, in a small animal where a chemical signal passes rapidly through cells to go from the head to the tail?
Which statement about thermodynamics is true?
1. The total amount of energy can change after a chemical reaction.
2. Free energy can be kinetic, but not potential, energy.
3. Free energy is used up in an exergonic reaction.
4. Free energy cannot be used to do work.
5. Entropy tends to increase.
Circle the best answer. In an enzyme-catalyzed reaction,
1. strain may be added to the substrate
2. the rate decreases as substrate concentration increases
3. the enzyme can be permanently changed
4. the rate is not affected by substrate concentration
5. a substrate does not change

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