Proteins are the principal constituents of cells and determine not only cell structure but also cell function.
举一反三
- Cell biology is the study of cells and their structure, function, and _______.
- Which of the following statements about non-collagen adhesive proteins is wrong? A: The fibronectin mediates cell to cell adhesion. B: The molecular structure of fibronectin exhibits multi- domains for specific function. C: RGD tripeptide is the smallest structural unit of non-collagen binding proteins in ECM for cell to associate. D: Laminin is a hetero-trimmer protein composed of three polypeptide chains of α、β and γ.
- Which of the following would NOT be a function of MHC I? A: display peptides derived from turnover of a cell’s own proteins B: down-regulate the activity of NK cells C: in cross presentation, display pathogenic peptides acquired by phagocytosis D: signal that a red blood cell is old and should be removed and recycled E: bind CD8 when the cell interacts with a Tc cell
- All cells have a cell membrane made of proteins and ( ). A: lipids B: glucose C: amino acid D: fructose
- Cell differentiation is the process that a cell changes to carry out a specialized function.