The plasma membrane is composed of two major types of molecules, and . Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: ____; interactions with other cells: _.

Question

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Answer 1

Textbook Question

Chapter 4, Problem 1FTB

The plasma membrane is composed of two major types of molecules, ______ and ______. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: __________; interactions with other cells: ___.

Expert Solution & Answer

Summary Introduction

To review:

The given blank spaces in the given statement, “the plasma membrane is composed of two major types of molecules, _____________ and _________________. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: _______________; interactions with other cells: ______________________.”

Introduction:

The cell is the basic structural and functional unit of life. The cell is composed of various cellular organelles present in a jelly-like fluid compartment known as cytoplasm. The cytoplasm containing cellular organelles is known as protoplasm, which is surrounded by a semi-permeable structure known as the cell membrane. In case of plants and some other microorganisms cell membrane is further surrounded by cell wall but in case of animals, the cell membrane is the outermost structure.

Explanation of Solution

Cell membranes are primarily composed of lipids and proteins. There are three major classes of lipids that form the lipid bilayer that surrounds the cell. These are phospholipids, glycolipids, and cholesterol. All in all, lipid bilayer maintains a hydrophobic atmosphere, hence only non-polar molecules can pass through it. Thus, it isolates the cell from its surroundings by conferring a semi-permeable nature to it.

The amount of different lipids varies according to the type of cells. Lipids form the lipid bilayer, which confers fluidity to the cell membrane. Some proteins are embedded within the bilayer. They have their hydrophobic amino acids exposed. These are known as integral membrane proteins.

Other types of proteins present in the membrane are peripheral membrane proteins. They are bound to the lipids through some amino acid R-group and exposed to the surrounding completely; hence, they are called peripheral membrane protein. They are exposed as they have to interact with receptors on other cells, or they themselves are receptors for the molecules used in cell signaling.

Conclusion

The plasma membrane is composed of two major types of molecules, lipids and proteins. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: Lipids; interactions with other cells; peripheral membrane proteins.

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Which component of the plasma membrane is primarily responsible for forming a physical barrier between the cell’s internal and external environments?

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Which of the following statements about a typical plasma membrane is correct? The hydrophilic interior of the membrane is composed primarily of the fatty acid tails of the phospholipids. Carbohydrates on the membrane surface are important in determing the overall bilayer structure. Phospholipids are the primary component that determines which solute can cross the plasma membrane. The two sides of the plasma membrane have different lipid and protein composition. The plasma membrane is covalently linked network of phospholipids and proteins that controls the movement of solutes into and out of a cell.

Answer 2

Textbook Question

Chapter 4, Problem 1FTB

The plasma membrane is composed of two major types of molecules, ______ and ______. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: __________; interactions with other cells: ___.

Expert Solution & Answer

Summary Introduction

To review:

The given blank spaces in the given statement, “the plasma membrane is composed of two major types of molecules, _____________ and _________________. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: _______________; interactions with other cells: ______________________.”

Introduction:

The cell is the basic structural and functional unit of life. The cell is composed of various cellular organelles present in a jelly-like fluid compartment known as cytoplasm. The cytoplasm containing cellular organelles is known as protoplasm, which is surrounded by a semi-permeable structure known as the cell membrane. In case of plants and some other microorganisms cell membrane is further surrounded by cell wall but in case of animals, the cell membrane is the outermost structure.

Explanation of Solution

Cell membranes are primarily composed of lipids and proteins. There are three major classes of lipids that form the lipid bilayer that surrounds the cell. These are phospholipids, glycolipids, and cholesterol. All in all, lipid bilayer maintains a hydrophobic atmosphere, hence only non-polar molecules can pass through it. Thus, it isolates the cell from its surroundings by conferring a semi-permeable nature to it.

The amount of different lipids varies according to the type of cells. Lipids form the lipid bilayer, which confers fluidity to the cell membrane. Some proteins are embedded within the bilayer. They have their hydrophobic amino acids exposed. These are known as integral membrane proteins.

Other types of proteins present in the membrane are peripheral membrane proteins. They are bound to the lipids through some amino acid R-group and exposed to the surrounding completely; hence, they are called peripheral membrane protein. They are exposed as they have to interact with receptors on other cells, or they themselves are receptors for the molecules used in cell signaling.

Conclusion

The plasma membrane is composed of two major types of molecules, lipids and proteins. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: Lipids; interactions with other cells; peripheral membrane proteins.

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Answer 3

Textbook Question

Chapter 4, Problem 1FTB

The plasma membrane is composed of two major types of molecules, ______ and ______. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: __________; interactions with other cells: ___.

Expert Solution & Answer

Summary Introduction

To review:

The given blank spaces in the given statement, “the plasma membrane is composed of two major types of molecules, _____________ and _________________. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: _______________; interactions with other cells: ______________________.”

Introduction:

The cell is the basic structural and functional unit of life. The cell is composed of various cellular organelles present in a jelly-like fluid compartment known as cytoplasm. The cytoplasm containing cellular organelles is known as protoplasm, which is surrounded by a semi-permeable structure known as the cell membrane. In case of plants and some other microorganisms cell membrane is further surrounded by cell wall but in case of animals, the cell membrane is the outermost structure.

Explanation of Solution

Cell membranes are primarily composed of lipids and proteins. There are three major classes of lipids that form the lipid bilayer that surrounds the cell. These are phospholipids, glycolipids, and cholesterol. All in all, lipid bilayer maintains a hydrophobic atmosphere, hence only non-polar molecules can pass through it. Thus, it isolates the cell from its surroundings by conferring a semi-permeable nature to it.

The amount of different lipids varies according to the type of cells. Lipids form the lipid bilayer, which confers fluidity to the cell membrane. Some proteins are embedded within the bilayer. They have their hydrophobic amino acids exposed. These are known as integral membrane proteins.

Other types of proteins present in the membrane are peripheral membrane proteins. They are bound to the lipids through some amino acid R-group and exposed to the surrounding completely; hence, they are called peripheral membrane protein. They are exposed as they have to interact with receptors on other cells, or they themselves are receptors for the molecules used in cell signaling.

Conclusion

The plasma membrane is composed of two major types of molecules, lipids and proteins. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: Lipids; interactions with other cells; peripheral membrane proteins.

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Answer 4

Textbook Question

Chapter 4, Problem 1FTB

The plasma membrane is composed of two major types of molecules, ______ and ______. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: __________; interactions with other cells: ___.

Expert Solution & Answer

Summary Introduction

To review:

The given blank spaces in the given statement, “the plasma membrane is composed of two major types of molecules, _____________ and _________________. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: _______________; interactions with other cells: ______________________.”

Introduction:

The cell is the basic structural and functional unit of life. The cell is composed of various cellular organelles present in a jelly-like fluid compartment known as cytoplasm. The cytoplasm containing cellular organelles is known as protoplasm, which is surrounded by a semi-permeable structure known as the cell membrane. In case of plants and some other microorganisms cell membrane is further surrounded by cell wall but in case of animals, the cell membrane is the outermost structure.

Explanation of Solution

Cell membranes are primarily composed of lipids and proteins. There are three major classes of lipids that form the lipid bilayer that surrounds the cell. These are phospholipids, glycolipids, and cholesterol. All in all, lipid bilayer maintains a hydrophobic atmosphere, hence only non-polar molecules can pass through it. Thus, it isolates the cell from its surroundings by conferring a semi-permeable nature to it.

The amount of different lipids varies according to the type of cells. Lipids form the lipid bilayer, which confers fluidity to the cell membrane. Some proteins are embedded within the bilayer. They have their hydrophobic amino acids exposed. These are known as integral membrane proteins.

Other types of proteins present in the membrane are peripheral membrane proteins. They are bound to the lipids through some amino acid R-group and exposed to the surrounding completely; hence, they are called peripheral membrane protein. They are exposed as they have to interact with receptors on other cells, or they themselves are receptors for the molecules used in cell signaling.

Conclusion

The plasma membrane is composed of two major types of molecules, lipids and proteins. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: Lipids; interactions with other cells; peripheral membrane proteins.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

To review:

The given blank spaces in the given statement, “the plasma membrane is composed of two major types of molecules, _____________ and _________________. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: _______________; interactions with other cells: ______________________.”

Introduction:

The cell is the basic structural and functional unit of life. The cell is composed of various cellular organelles present in a jelly-like fluid compartment known as cytoplasm. The cytoplasm containing cellular organelles is known as protoplasm, which is surrounded by a semi-permeable structure known as the cell membrane. In case of plants and some other microorganisms cell membrane is further surrounded by cell wall but in case of animals, the cell membrane is the outermost structure.

Explanation of Solution

Cell membranes are primarily composed of lipids and proteins. There are three major classes of lipids that form the lipid bilayer that surrounds the cell. These are phospholipids, glycolipids, and cholesterol. All in all, lipid bilayer maintains a hydrophobic atmosphere, hence only non-polar molecules can pass through it. Thus, it isolates the cell from its surroundings by conferring a semi-permeable nature to it.

The amount of different lipids varies according to the type of cells. Lipids form the lipid bilayer, which confers fluidity to the cell membrane. Some proteins are embedded within the bilayer. They have their hydrophobic amino acids exposed. These are known as integral membrane proteins.

Other types of proteins present in the membrane are peripheral membrane proteins. They are bound to the lipids through some amino acid R-group and exposed to the surrounding completely; hence, they are called peripheral membrane protein. They are exposed as they have to interact with receptors on other cells, or they themselves are receptors for the molecules used in cell signaling.

Conclusion

The plasma membrane is composed of two major types of molecules, lipids and proteins. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: Lipids; interactions with other cells; peripheral membrane proteins.

Answer 8

Expert Solution & Answer

Summary Introduction

To review:

The given blank spaces in the given statement, “the plasma membrane is composed of two major types of molecules, _____________ and _________________. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: _______________; interactions with other cells: ______________________.”

Introduction:

The cell is the basic structural and functional unit of life. The cell is composed of various cellular organelles present in a jelly-like fluid compartment known as cytoplasm. The cytoplasm containing cellular organelles is known as protoplasm, which is surrounded by a semi-permeable structure known as the cell membrane. In case of plants and some other microorganisms cell membrane is further surrounded by cell wall but in case of animals, the cell membrane is the outermost structure.

Explanation of Solution

Cell membranes are primarily composed of lipids and proteins. There are three major classes of lipids that form the lipid bilayer that surrounds the cell. These are phospholipids, glycolipids, and cholesterol. All in all, lipid bilayer maintains a hydrophobic atmosphere, hence only non-polar molecules can pass through it. Thus, it isolates the cell from its surroundings by conferring a semi-permeable nature to it.

The amount of different lipids varies according to the type of cells. Lipids form the lipid bilayer, which confers fluidity to the cell membrane. Some proteins are embedded within the bilayer. They have their hydrophobic amino acids exposed. These are known as integral membrane proteins.

Other types of proteins present in the membrane are peripheral membrane proteins. They are bound to the lipids through some amino acid R-group and exposed to the surrounding completely; hence, they are called peripheral membrane protein. They are exposed as they have to interact with receptors on other cells, or they themselves are receptors for the molecules used in cell signaling.

Conclusion

The plasma membrane is composed of two major types of molecules, lipids and proteins. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: Lipids; interactions with other cells; peripheral membrane proteins.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

To review:

The given blank spaces in the given statement, “the plasma membrane is composed of two major types of molecules, _____________ and _________________. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: _______________; interactions with other cells: ______________________.”

Introduction:

The cell is the basic structural and functional unit of life. The cell is composed of various cellular organelles present in a jelly-like fluid compartment known as cytoplasm. The cytoplasm containing cellular organelles is known as protoplasm, which is surrounded by a semi-permeable structure known as the cell membrane. In case of plants and some other microorganisms cell membrane is further surrounded by cell wall but in case of animals, the cell membrane is the outermost structure.

Answer 12

Explanation of Solution

Cell membranes are primarily composed of lipids and proteins. There are three major classes of lipids that form the lipid bilayer that surrounds the cell. These are phospholipids, glycolipids, and cholesterol. All in all, lipid bilayer maintains a hydrophobic atmosphere, hence only non-polar molecules can pass through it. Thus, it isolates the cell from its surroundings by conferring a semi-permeable nature to it.

The amount of different lipids varies according to the type of cells. Lipids form the lipid bilayer, which confers fluidity to the cell membrane. Some proteins are embedded within the bilayer. They have their hydrophobic amino acids exposed. These are known as integral membrane proteins.

Other types of proteins present in the membrane are peripheral membrane proteins. They are bound to the lipids through some amino acid R-group and exposed to the surrounding completely; hence, they are called peripheral membrane protein. They are exposed as they have to interact with receptors on other cells, or they themselves are receptors for the molecules used in cell signaling.

Answer 13

Conclusion

The plasma membrane is composed of two major types of molecules, lipids and proteins. Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: Lipids; interactions with other cells; peripheral membrane proteins.

Answer 14

Ch. 4 - The plasma membrane is composed of two major types...Ch. 4 - Fill-in-the-Blank The_______ is composed of a...Ch. 4 - Prob. 3FTB Ch. 4 - 4. Antibody proteins are synthesized on ribosomes...Ch. 4 - After each description, fill in the appropriate...Ch. 4 - Two organelles that are believed to have evolved...Ch. 4 - 7. What structure in bacterial cells is composed...Ch. 4 - 1. What are the three principles of the cell...Ch. 4 - 2. Which cytoplasmic structures are common to both...Ch. 4 - Prob. 3RQ

The plasma membrane is composed of two major types of molecules, and . Which type of molecule is responsible for each of the following functions? Isolation from the surroundings: ____; interactions with other cells: _.

Solution Summary: The author explains that the plasma membrane is composed of two major types of molecules, lipids and proteins.

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