Plasma membrane is present in
A) Only in plants
B) Only in animals
C) Both plants and animals
D) None
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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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Cell membrane or plasma membrane is made up of
C) both lipids and proteins
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Read the following statements. a) Plastids are present only in plants. b) Lysosomes contain non-destructive enzymes.
B) a correct, b incorrect
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Very few animals and plants are present in deserts. Because
B) There is very little water
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Vidhya and Vijay were studying the effect of certain radiations on flower plants. Vidhya exposed her plants to UV rays and Vijay exposed his plants
Frequency of UV rays is greater than infrared rays, hence UV rays are much more energetic than infrared rays. Plants cannot tolerate the exposure of high energy rays. As a...
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The long plants always produce long plants only
(D) Short plants also produced
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Animals that depend only on plants for food are called
The correct answer is B) Herbivores
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Fill in the blanks. 1. Animals that depend on both plants and animals for food are called …………………
1. Omnivores 2. Herbivores 3. Carnivores 4. Frugivorous 5. Smell
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