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Select the correct statement from the following regarding cell membrane.
[2012]
- a)Na+ and K+ ions move across cell membrane by passive transport
- b)Proteins make up 60 to 70% of the cell membrane.
- c)Lipids are arranged in a bilayer with polar heads towards the inner part.
- d)Fluid mosaic model of cell membrane was proposed by Singer and Nicolson
Correct answer is option 'D'. Can you explain this answer?
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Select the correct statement from the following regarding cell membran...
Fluid mosaic membrane model was proposed by Singer and Nicholson in 1972. It is most accepted model of structure of biomembrane.
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Select the correct statement from the following regarding cell membran...
Fluid Mosaic Model of Cell Membrane
Explanation:
The correct statement regarding the cell membrane is option D. The fluid mosaic model of the cell membrane was proposed by Singer and Nicolson in 1972. This model describes the structure and function of the cell membrane.
Structure of Cell Membrane:
The cell membrane is a thin, flexible, and semi-permeable layer that surrounds the cell. It is composed of lipids, proteins, and carbohydrates.
- Lipids: The cell membrane is primarily composed of lipids, which include phospholipids, cholesterol, and glycolipids. These lipids are arranged in a bilayer with the polar heads facing outwards and the nonpolar tails facing inwards.
- Proteins: Proteins make up about 50% of the cell membrane by weight. They are embedded in the lipid bilayer and can be either peripheral or integral proteins. These proteins play a crucial role in the transport of molecules across the membrane, cell signaling, and cell recognition.
- Carbohydrates: Carbohydrates are also present on the cell membrane, primarily in the form of glycoproteins and glycolipids. They are involved in cell recognition and communication.
Function of Cell Membrane:
The cell membrane has several functions, including:
- Regulating the movement of molecules in and out of the cell
- Providing structural support to the cell
- Facilitating cell signaling and communication
- Cell recognition and identification
Conclusion:
Hence, the correct statement regarding the cell membrane is that the fluid mosaic model of the cell membrane was proposed by Singer and Nicolson.
Explanation:
The correct statement regarding the cell membrane is option D. The fluid mosaic model of the cell membrane was proposed by Singer and Nicolson in 1972. This model describes the structure and function of the cell membrane.
Structure of Cell Membrane:
The cell membrane is a thin, flexible, and semi-permeable layer that surrounds the cell. It is composed of lipids, proteins, and carbohydrates.
- Lipids: The cell membrane is primarily composed of lipids, which include phospholipids, cholesterol, and glycolipids. These lipids are arranged in a bilayer with the polar heads facing outwards and the nonpolar tails facing inwards.
- Proteins: Proteins make up about 50% of the cell membrane by weight. They are embedded in the lipid bilayer and can be either peripheral or integral proteins. These proteins play a crucial role in the transport of molecules across the membrane, cell signaling, and cell recognition.
- Carbohydrates: Carbohydrates are also present on the cell membrane, primarily in the form of glycoproteins and glycolipids. They are involved in cell recognition and communication.
Function of Cell Membrane:
The cell membrane has several functions, including:
- Regulating the movement of molecules in and out of the cell
- Providing structural support to the cell
- Facilitating cell signaling and communication
- Cell recognition and identification
Conclusion:
Hence, the correct statement regarding the cell membrane is that the fluid mosaic model of the cell membrane was proposed by Singer and Nicolson.
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Select the correct statement from the following regarding cell membrane.[2012]a)Na+ and K+ ions move across cell membrane by passive transportb)Proteins make up 60 to 70% of the cell membrane.c)Lipids are arranged in a bilayer with polar heads towards the inner part.d)Fluid mosaic model of cell membrane was proposed by Singer and NicolsonCorrect answer is option 'D'. Can you explain this answer?
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Select the correct statement from the following regarding cell membrane.[2012]a)Na+ and K+ ions move across cell membrane by passive transportb)Proteins make up 60 to 70% of the cell membrane.c)Lipids are arranged in a bilayer with polar heads towards the inner part.d)Fluid mosaic model of cell membrane was proposed by Singer and NicolsonCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Select the correct statement from the following regarding cell membrane.[2012]a)Na+ and K+ ions move across cell membrane by passive transportb)Proteins make up 60 to 70% of the cell membrane.c)Lipids are arranged in a bilayer with polar heads towards the inner part.d)Fluid mosaic model of cell membrane was proposed by Singer and NicolsonCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select the correct statement from the following regarding cell membrane.[2012]a)Na+ and K+ ions move across cell membrane by passive transportb)Proteins make up 60 to 70% of the cell membrane.c)Lipids are arranged in a bilayer with polar heads towards the inner part.d)Fluid mosaic model of cell membrane was proposed by Singer and NicolsonCorrect answer is option 'D'. Can you explain this answer?.
Select the correct statement from the following regarding cell membrane.[2012]a)Na+ and K+ ions move across cell membrane by passive transportb)Proteins make up 60 to 70% of the cell membrane.c)Lipids are arranged in a bilayer with polar heads towards the inner part.d)Fluid mosaic model of cell membrane was proposed by Singer and NicolsonCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Select the correct statement from the following regarding cell membrane.[2012]a)Na+ and K+ ions move across cell membrane by passive transportb)Proteins make up 60 to 70% of the cell membrane.c)Lipids are arranged in a bilayer with polar heads towards the inner part.d)Fluid mosaic model of cell membrane was proposed by Singer and NicolsonCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select the correct statement from the following regarding cell membrane.[2012]a)Na+ and K+ ions move across cell membrane by passive transportb)Proteins make up 60 to 70% of the cell membrane.c)Lipids are arranged in a bilayer with polar heads towards the inner part.d)Fluid mosaic model of cell membrane was proposed by Singer and NicolsonCorrect answer is option 'D'. Can you explain this answer?.
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Select the correct statement from the following regarding cell membrane.[2012]a)Na+ and K+ ions move across cell membrane by passive transportb)Proteins make up 60 to 70% of the cell membrane.c)Lipids are arranged in a bilayer with polar heads towards the inner part.d)Fluid mosaic model of cell membrane was proposed by Singer and NicolsonCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Select the correct statement from the following regarding cell membrane.[2012]a)Na+ and K+ ions move across cell membrane by passive transportb)Proteins make up 60 to 70% of the cell membrane.c)Lipids are arranged in a bilayer with polar heads towards the inner part.d)Fluid mosaic model of cell membrane was proposed by Singer and NicolsonCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Select the correct statement from the following regarding cell membrane.[2012]a)Na+ and K+ ions move across cell membrane by passive transportb)Proteins make up 60 to 70% of the cell membrane.c)Lipids are arranged in a bilayer with polar heads towards the inner part.d)Fluid mosaic model of cell membrane was proposed by Singer and NicolsonCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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