Examlex
Which one of the following statements is correct?
Nucleus
The central and most important part of an object, movement, or group, forming the basis for its activity and growth, or in cells, a membrane-bound organelle that contains the cell's chromosomes.
Cell Membrane
The semipermeable membrane surrounding the cytoplasm of a cell, responsible for controlling the passage of substances in and out of the cell.
Substances
Materials or items with distinct physical or chemical properties.
Cytoplasm
The gel-like substance within a cell, excluding the nucleus, that contains organelles and is the site of numerous metabolic reactions.
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