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25 total questions
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question
match the type of membrane transport with the appropriate characteristic:
secondary active transport.
answer
movement of a substance that utilizes a carrier; energy comes
directly from hydrolysis of atp
driven indirectly by energy stored in concentration gradients of
ions
random motion of a substance resulting in movement from an area
of high to lower concentration
a passive process utilizing a protein carrier or channel
i dont know yet
To solve this, we recall the characteristics of secondary active transport. Secondary active transport uses the energy stored in ion concentration gradients (created by primary active transport) to move substances, so it is driven indirectly by that energy. The first option is primary active transport (uses ATP directly). The third is diffusion. The fourth is facilitated diffusion (passive with a carrier/channel).
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The correct option is: Driven indirectly by energy stored in concentration gradients of ions