Which of the following is not parameter to affect diffusion concentration?
1 .Gradient of concentration
2. Permeability of the membrane separating them
3. Temperature, Pressure
4. Gas constant
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe diffusion of any substance across a membrane depends on
1 .Solubility in proteins
2 .Solubility in carbohydrates
3 .Solubility in lipids
4. Solubility in glycolipids
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySubstances which are soluble in lipids…….a…...But which have a hydrophilic moiety……..b……
1. a- move slowly
2. a- move similarly as that of others
3. b- move faster
4. a- move faster
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWater channels are made up of
1. Eight aquaporins
2. Eight different types of aquaporins
3 .Ten aquaporins
4. Ten different types of aquaporins
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPorins are not present in
1. The outer membranes of Plastids
2. The outer membrane of Mitochondria
3. The outer membrane of bacteria
4. Inner membrane of Plastids
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is not sensitive to inhibitors?
1 .Pump
2 .Diffusion
3. Facilitated Diffusion
4. Potions
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is correct with respect to Facilitated Diffusion?
1. Some channels are always open while others can be controlled
2. All channels are always open
3. Some channels are closed while others are always open
4. No regulation of channels as such.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMolecules move in opposite direction across the membrane by the means of a transport protein, such movement is called
1. Biport
2. Symport
3. Antiport
4. Uniport
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMolecules moves across a membrane independent of other molecules, by the means of membrane protein, the process is called
1. Biport
2. Symport
3. Uniport
4. Antiport
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyActive Transport
Which of the following is wrong?
1. Uses energy to transport
2. Uses energy to pump molecules against a concentration gradient
3. Carried out by specific membrane proteins
4. Substances are transported from a high concentration to low concentration
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology