Select a true statement about active transportIt takes place in both directionsIt occurs without the help of carrier proteinsIt allows all transmissible molecules to pass through membraneNone of the above
Question
Select a true statement about active transportIt takes place in both directionsIt occurs without the help of carrier proteinsIt allows all transmissible molecules to pass through membraneNone of the above
Solution
The true statement about active transport is: "It takes place in both directions".
Active transport is a process that moves molecules across a cell membrane from a region of their lower concentration to a region of their higher concentration. This process is against the concentration gradient, thus requires energy, usually in the form of ATP. It can occur in both directions depending on where the molecules need to go.
It's important to note that active transport does require the help of carrier proteins to move molecules across the membrane, and it does not allow all transmissible molecules to pass through the membrane, only specific ones. Therefore, the other options are not correct.
Similar Questions
True or false? Active transport can only take place across a membrane.
How do molecules move that are facilitated by active transport?lower concentration to higher concentrationthrough the cell membranehigher concentration to lower concentration
Unlike passive transport mechanisms, active transport requires the input of cellular .
In passive transport, no is spent to pass a substance across a membrane.
Identify all of the following which are passive transport method(s).Group of answer choicesfacilitated diffusion via a channel proteinfacilitated diffusion via a carrier proteinactive transportautophagycotransportexocytosisreceptor-mediated endocytosispinocytosissimple diffusionendocytosisphagocytosis
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