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HHS Body Structure
Key Terms
Question | Answer |
---|---|
Chromatin | Structural component of the nucleus, composed of nucleic acids and proteins |
Chromosome | Threadlike structures within the nucleus composed of a deoxyribonucleic acid (DNA) molecule that carries hereditary information encoded in genes. |
cytoplasm | Jellylike substance found within the cell membrane composed of proteins, salts, water, dissolved gases, and nutrients |
Deoxyribonucleic acid (DNA) | Molecule that holds genetic information capable of replicating and producing an exact copy whenever the cell divides |
diaphragm | muscular wall that divides the thoracic cavity from the abdominopelvic cavity |
metabolism | sum of all physical and chemical changes that take place in a cell or an organism |
organelle | cellular structure that provides a specialized function |
pathology | Study of the nature of diseases, their causes, development, and consequences |
peristalsis | Rhythmic contraction and relaxation of the walls of a tubular organ to propel its contents onward. |