Canadian Society for Medical Laboratory Science (CSMLS) Practice Exam

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Which part of the cell contains chromosomes?

Cytoplasm
Golgi apparatus
Organelles
Nucleus

The correct answer is: Nucleus

The nucleus is the part of the cell that contains chromosomes, which are structures made of DNA and proteins that hold the genetic information of an organism. Within the nucleus, chromosomes are organized and condensed during cell division, allowing for efficient separation and distribution of genetic material to daughter cells. The significance of the nucleus lies in its role as the control center of the cell, directing activities such as growth, metabolism, and reproduction through the regulation of gene expression. In contrast, the cytoplasm is the fluid matrix outside the nucleus where various cellular components are suspended, but it does not contain chromosomes. The Golgi apparatus is involved in modifying, sorting, and packaging proteins and lipids but does not house chromosomes. Organelles, in general, refer to specialized structures within the cell, including the nucleus itself, but the term is broad and does not specifically indicate the location of chromosomes. Thus, the nucleus is uniquely identified as the compartment that contains and protects the cell's chromosomes.