Transport of materials into a cell against a concentration gradient, from low to high, requires

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A) water.

B) energy.

C) osmosis.

D) a passageway.

Describe the structure of DNA, and explain the law of complementary base pairing.

Environmental microbiology ... A ... shows great promise, but has not yielded any significant discoveries yet. B ... includes methods like metagenomics, which sequence and interpret all the DNA in an environmental sample. C ...

During digestion, what process or action breaks food down into smaller units that can be absorbed by the body?

What is the organelle responsible for synthesis of proteins by bound ribosomes called? proteosome rough endoplasmic reticulum golgi apparatus smooth endoplasmic reticulum?

Why does salad become soggy and wilted when the dressing has been on it for a while? Explain in the terms of osmosis.

List 4 piece's of evidence that support the theory plate tectonics

Which is the best example of a force counteracting Fp? using a dolly to push a box to another location two children pulling apart a wishbone a group of dogs pulling a dogsled across ice two people pushing a broken-down car up the road

What layer of atmosphere reflects radio waves

Which functional group allows the sugar glucose to dissolve in blood? a. Carboxyl b. Hydroxyl c. Phosphate

A protein is in its native conformation when a. it is thermodynamically least stable b. it has the highest gibbs free energy c. it is in any of its functional, folded states d. it is unfolded e. none of the above