The only PA-CAT practice questions you'll need to boost your confidence and get your dream score on the first try
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Which part of the cell plays an important role in cell transport as it is responsible for moving nutrients in and toxic substances out of the cell?
A plasma membrane, or the cell membrane, separates the inner aspects of the cell from the extracellular space, generating a fixed environment within the cell. It provides protection for the cell as well as some structural support, and it functions as the transport for the cell, moving nutrients into and unwanted substances out of the interior. The plasma membrane contains proteins and phospholipids that are important for interacting with various cells, membrane permeability, and cell transport.
Cytoplasm (A) is the liquid within the cell, generally composed of water and organic molecules. Endoplasmic reticulum (B), either smooth or rough, functions to produce proteins necessary for cell function. Ribosomes (D) are the site for protein synthesis within a cell that is responsible for reading and translating the ribonucleic acid (RNA) bases into amino acid sequences.
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