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Fluid mosaic model was proposed by Singer and Nicolson. According to this model, there is a central lipid bilayer of phospholipids with their polar head group towards the outside and the non-polar tails pointing inwards. Some proteins are embedded in the lipid layer are called integral or intrinsic proteins and they cannot be separated from the membrane. There are large globular integral proteins which project beyond the lipid layer on both the sides. Superficially attached proteins are called extrinsic or peripheral proteins and can be easily removed. Some membrane lipids and integral proteins remains bound to oligosaccharides which project into the extracellular fluid.
Q. The passage of substances across the cell membrane occurs by:
- a)Active transport
- b)Passive transport
- c)Bulk transport
- d)All of the above
Correct answer is option 'D'. Can you explain this answer?
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Fluid mosaic model was proposed by Singer and Nicolson. According to ...
These are the mechanisms through which molecules can be moved across the membrane. Passive transport mechanism use no energy while active transplant require energy to get it done.
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Fluid mosaic model was proposed by Singer and Nicolson. According to ...
Understanding the Passage of Substances Across Cell Membranes
The passage of substances across the cell membrane is crucial for maintaining cellular function and homeostasis. This movement can occur through various mechanisms, which are categorized as follows:
Active Transport
- Requires energy (ATP) to move substances against their concentration gradient.
- Involves specific transport proteins, such as pumps (e.g., sodium-potassium pump).
- Essential for nutrient uptake and waste removal.
Passive Transport
- Does not require energy; substances move along their concentration gradient.
- Includes diffusion, facilitated diffusion, and osmosis.
- Integral proteins assist in the transport of larger or polar molecules (e.g., glucose and ions) through channels.
Bulk Transport
- Also known as vesicular transport, involves the movement of large quantities of substances.
- Includes processes such as endocytosis (bringing substances into the cell) and exocytosis (expelling substances from the cell).
- Utilizes vesicles, which are membrane-bound sacs, to transport materials.
Conclusion
Given these diverse mechanisms, the correct answer is option 'D' - "All of the above." Each transport method serves specific functions in cellular activities, allowing cells to maintain their internal environment, communicate, and respond to changes in their surroundings. Understanding these processes is fundamental in the study of cell biology, particularly in contexts such as pharmacology and physiology, relevant for NEET aspirants.
The passage of substances across the cell membrane is crucial for maintaining cellular function and homeostasis. This movement can occur through various mechanisms, which are categorized as follows:
Active Transport
- Requires energy (ATP) to move substances against their concentration gradient.
- Involves specific transport proteins, such as pumps (e.g., sodium-potassium pump).
- Essential for nutrient uptake and waste removal.
Passive Transport
- Does not require energy; substances move along their concentration gradient.
- Includes diffusion, facilitated diffusion, and osmosis.
- Integral proteins assist in the transport of larger or polar molecules (e.g., glucose and ions) through channels.
Bulk Transport
- Also known as vesicular transport, involves the movement of large quantities of substances.
- Includes processes such as endocytosis (bringing substances into the cell) and exocytosis (expelling substances from the cell).
- Utilizes vesicles, which are membrane-bound sacs, to transport materials.
Conclusion
Given these diverse mechanisms, the correct answer is option 'D' - "All of the above." Each transport method serves specific functions in cellular activities, allowing cells to maintain their internal environment, communicate, and respond to changes in their surroundings. Understanding these processes is fundamental in the study of cell biology, particularly in contexts such as pharmacology and physiology, relevant for NEET aspirants.
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Fluid mosaic model was proposed by Singer and Nicolson. According to this model, there is a central lipid bilayer of phospholipids with their polar head group towards the outside and the non-polar tails pointing inwards. Some proteins are embedded in the lipid layer are called integral or intrinsic proteins and they cannot be separated from the membrane. There are large globular integral proteins which project beyond the lipid layer on both the sides. Superficially attached proteins are called extrinsic or peripheral proteins and can be easily removed. Some membrane lipids and integral proteins remains bound to oligosaccharides which project into the extracellular fluid.Q. The passage of substances across the cell membrane occurs by:a)Active transportb)Passive transportc)Bulk transportd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?
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Fluid mosaic model was proposed by Singer and Nicolson. According to this model, there is a central lipid bilayer of phospholipids with their polar head group towards the outside and the non-polar tails pointing inwards. Some proteins are embedded in the lipid layer are called integral or intrinsic proteins and they cannot be separated from the membrane. There are large globular integral proteins which project beyond the lipid layer on both the sides. Superficially attached proteins are called extrinsic or peripheral proteins and can be easily removed. Some membrane lipids and integral proteins remains bound to oligosaccharides which project into the extracellular fluid.Q. The passage of substances across the cell membrane occurs by:a)Active transportb)Passive transportc)Bulk transportd)All of the aboveCorrect 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 Fluid mosaic model was proposed by Singer and Nicolson. According to this model, there is a central lipid bilayer of phospholipids with their polar head group towards the outside and the non-polar tails pointing inwards. Some proteins are embedded in the lipid layer are called integral or intrinsic proteins and they cannot be separated from the membrane. There are large globular integral proteins which project beyond the lipid layer on both the sides. Superficially attached proteins are called extrinsic or peripheral proteins and can be easily removed. Some membrane lipids and integral proteins remains bound to oligosaccharides which project into the extracellular fluid.Q. The passage of substances across the cell membrane occurs by:a)Active transportb)Passive transportc)Bulk transportd)All of the aboveCorrect 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 Fluid mosaic model was proposed by Singer and Nicolson. According to this model, there is a central lipid bilayer of phospholipids with their polar head group towards the outside and the non-polar tails pointing inwards. Some proteins are embedded in the lipid layer are called integral or intrinsic proteins and they cannot be separated from the membrane. There are large globular integral proteins which project beyond the lipid layer on both the sides. Superficially attached proteins are called extrinsic or peripheral proteins and can be easily removed. Some membrane lipids and integral proteins remains bound to oligosaccharides which project into the extracellular fluid.Q. The passage of substances across the cell membrane occurs by:a)Active transportb)Passive transportc)Bulk transportd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?.
Fluid mosaic model was proposed by Singer and Nicolson. According to this model, there is a central lipid bilayer of phospholipids with their polar head group towards the outside and the non-polar tails pointing inwards. Some proteins are embedded in the lipid layer are called integral or intrinsic proteins and they cannot be separated from the membrane. There are large globular integral proteins which project beyond the lipid layer on both the sides. Superficially attached proteins are called extrinsic or peripheral proteins and can be easily removed. Some membrane lipids and integral proteins remains bound to oligosaccharides which project into the extracellular fluid.Q. The passage of substances across the cell membrane occurs by:a)Active transportb)Passive transportc)Bulk transportd)All of the aboveCorrect 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 Fluid mosaic model was proposed by Singer and Nicolson. According to this model, there is a central lipid bilayer of phospholipids with their polar head group towards the outside and the non-polar tails pointing inwards. Some proteins are embedded in the lipid layer are called integral or intrinsic proteins and they cannot be separated from the membrane. There are large globular integral proteins which project beyond the lipid layer on both the sides. Superficially attached proteins are called extrinsic or peripheral proteins and can be easily removed. Some membrane lipids and integral proteins remains bound to oligosaccharides which project into the extracellular fluid.Q. The passage of substances across the cell membrane occurs by:a)Active transportb)Passive transportc)Bulk transportd)All of the aboveCorrect 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 Fluid mosaic model was proposed by Singer and Nicolson. According to this model, there is a central lipid bilayer of phospholipids with their polar head group towards the outside and the non-polar tails pointing inwards. Some proteins are embedded in the lipid layer are called integral or intrinsic proteins and they cannot be separated from the membrane. There are large globular integral proteins which project beyond the lipid layer on both the sides. Superficially attached proteins are called extrinsic or peripheral proteins and can be easily removed. Some membrane lipids and integral proteins remains bound to oligosaccharides which project into the extracellular fluid.Q. The passage of substances across the cell membrane occurs by:a)Active transportb)Passive transportc)Bulk transportd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Fluid mosaic model was proposed by Singer and Nicolson. According to this model, there is a central lipid bilayer of phospholipids with their polar head group towards the outside and the non-polar tails pointing inwards. Some proteins are embedded in the lipid layer are called integral or intrinsic proteins and they cannot be separated from the membrane. There are large globular integral proteins which project beyond the lipid layer on both the sides. Superficially attached proteins are called extrinsic or peripheral proteins and can be easily removed. Some membrane lipids and integral proteins remains bound to oligosaccharides which project into the extracellular fluid.Q. The passage of substances across the cell membrane occurs by:a)Active transportb)Passive transportc)Bulk transportd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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Fluid mosaic model was proposed by Singer and Nicolson. According to this model, there is a central lipid bilayer of phospholipids with their polar head group towards the outside and the non-polar tails pointing inwards. Some proteins are embedded in the lipid layer are called integral or intrinsic proteins and they cannot be separated from the membrane. There are large globular integral proteins which project beyond the lipid layer on both the sides. Superficially attached proteins are called extrinsic or peripheral proteins and can be easily removed. Some membrane lipids and integral proteins remains bound to oligosaccharides which project into the extracellular fluid.Q. The passage of substances across the cell membrane occurs by:a)Active transportb)Passive transportc)Bulk transportd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Fluid mosaic model was proposed by Singer and Nicolson. According to this model, there is a central lipid bilayer of phospholipids with their polar head group towards the outside and the non-polar tails pointing inwards. Some proteins are embedded in the lipid layer are called integral or intrinsic proteins and they cannot be separated from the membrane. There are large globular integral proteins which project beyond the lipid layer on both the sides. Superficially attached proteins are called extrinsic or peripheral proteins and can be easily removed. Some membrane lipids and integral proteins remains bound to oligosaccharides which project into the extracellular fluid.Q. The passage of substances across the cell membrane occurs by:a)Active transportb)Passive transportc)Bulk transportd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Fluid mosaic model was proposed by Singer and Nicolson. According to this model, there is a central lipid bilayer of phospholipids with their polar head group towards the outside and the non-polar tails pointing inwards. Some proteins are embedded in the lipid layer are called integral or intrinsic proteins and they cannot be separated from the membrane. There are large globular integral proteins which project beyond the lipid layer on both the sides. Superficially attached proteins are called extrinsic or peripheral proteins and can be easily removed. Some membrane lipids and integral proteins remains bound to oligosaccharides which project into the extracellular fluid.Q. The passage of substances across the cell membrane occurs by:a)Active transportb)Passive transportc)Bulk transportd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Fluid mosaic model was proposed by Singer and Nicolson. According to this model, there is a central lipid bilayer of phospholipids with their polar head group towards the outside and the non-polar tails pointing inwards. Some proteins are embedded in the lipid layer are called integral or intrinsic proteins and they cannot be separated from the membrane. There are large globular integral proteins which project beyond the lipid layer on both the sides. Superficially attached proteins are called extrinsic or peripheral proteins and can be easily removed. Some membrane lipids and integral proteins remains bound to oligosaccharides which project into the extracellular fluid.Q. The passage of substances across the cell membrane occurs by:a)Active transportb)Passive transportc)Bulk transportd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice NEET tests.
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