Example for semipermeable membrane …………..
A) Paper
B) Cloth
C) Egg
D) Plastic
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Give an account of eukaryotic plasma membrane.
Eukaryotic plasma membrane/ Cell membrane/ Biomembrane: 1. It is thin, quasi-fluid structure present both extracellularly and intracellularly. 2. Extracellularly, it is present around protoplast and intracellularly, it is present around most of...
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Explain the structure of plasma membrane on the basis of Fluid mosaic model.
Fluid mosaic model: 1. Fluid mosaic model was proposed by Singer and Nicholson (1972). 2. This model states that plasma membrane is made up of phospholipid bilayer and proteins. 3. Proteins are embedded...
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Give the functions of plasma membrane.
1. The significant function of plasma membrane is transport of molecules across it. Plasma membrane is selectively permeable. 2. Passive transport: a. Many molecules move across the membrane without spending energy. b. Some...
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The diffusion membrane is made up of: (A) Thick columnar epithelium of alveoli (B) Endothelium of alveolar capillaries (C) Basement substances in betw
Correct Answer - Only B and C
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A tube of uniform cross sectional sectional area `1 cm^(2)` is closed at one end with semi permeable membrane. A solution having 6g glucose per 100 ml
Correct Answer - `0.2.5`
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How transport vesicles identify their target cell or cell membrane?
While transport vesicles are leaving from the trans face of the Golgi, certain markers get impregnated on their membrane. These markers help them to identify their specific target cell or...
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What are nuclear membrane?
Nucleus is known as the master cell organelle as it regulates various metabolic activities through synthesis of various proteins and enzymes. The nucleus in eukaryotic cell is made up of nuclear...
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Cell membrane or plasma membrane is made up of
C) both lipids and proteins
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Semipermeable membrane is necessary for A) Osmosis
Correct option is A) Osmosis
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In plant cells : A) the cytoplasm, lining of the cell wall acts as semipermeable membrane.
D) cell sap acts as 4 semipermeable membrane.
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