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The transport of polar molecules across ...

The transport of polar molecules across the cell membrane requires

A

an ion of positive charge

B

hydrophilic carrier ion

C

hydrophobic carrier ion

D

a carrier protein

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The correct Answer is:
D
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ARIHANT NEET-CELL: THE UNIT OF LIFE-Chapter Exercises A Taking it together (Assorted Questions of the Chapter for Advanced Level Practise )
  1. Continuity of cytoplasm from cell is maintained through cytoplasmic co...

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  2. A phospholipid molecule is amphipathic and produce two layers coming i...

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  3. The transport of polar molecules across the cell membrane requires

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  4. In a cell that is not dividing, the chromosomes are visible as a tangl...

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  5. In plants, maximum number of chromosomes (2n=1262) are found in

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  6. An angiospermic plant with minium number of chromosomes is

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  7. Centromere is that part of chromosome where

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  8. The part which does not take strain amongst the following is

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  9. Dicentric chromosomes have two centro-meres because they possess an ad...

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  10. In human, secondary constrictions II is found on chromosome

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  11. Telomere prevents the attachment of one chromosome to

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  12. The organs of dipterans from where polytene chromosomes have been repo...

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  13. Salivary gland chromosomes are also known as

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  14. A row of dense granules present in lampbrush chromosomes is known as

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  15. The highest number of mitochondria are present in

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  16. Mitochondria

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  17. The outer membrane of mitochondria consists of transport channels call...

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  18. Cytoplasmic organelle having vitamin-E and vitamin-B(2) is

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  19. If, we separate the cell organelles of a living cell, which part shoul...

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  20. Which of the following is larger in size?

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