Protein that forms a channel to allow a particular molecule or ion to cross the plasma membrane.

What will be an ideal response?


channel protein

Biology & Microbiology

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The composition of the normal microbiota may be affected by

A. hormonal changes. B. use of antibiotics. C. obesity level. D. diet. E. All of the choices are correct.

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Flowers and fruits are unique to

A. gymnosperms. B. angiosperms. C. conifers. D. bryophytes. E. cycads.

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Transporting a solute against its concentration gradient requires ____

a. energy b. a gated channel c. exocytosis d. hypotonic and hypertonic differences across the cell membrane e. vesicle formation

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In higher eukaryotes genes are very close together

1.True 2.False

Biology & Microbiology