A: lipids
B: cholesterols
C: carbohydrates
D: nucleic acids
E: proteins
举一反三
- All cells have a cell membrane made of proteins and ( ). A: lipids B: glucose C: amino acid D: fructose
- Membrane proteins are the functional units of cell membrane.
- The myelin sheath of the peripheral nerve consists of A: Schwann cell membrane and cytoplasm B: only Schwann cell cytoplasm C: multiple layers of Schwann cell membrane D: only the lipid of Schwann cell membrane E: Schwann cell membrane and basal lamina
- Which of the following cells in the testis contain the most smooth endoplasmic reticulum?() A: Spermatogonium B: Leydig cell C: Smooth muscle cell D: Sertoli cell E: Spermatid
- Which cell is the most abundant cell in the epidermis? A: Merkel cell B: Keratinocyte C: Langerhans cell D: Melanocyte
内容
- 0
Communication between cells is mediated by cell signaling molecules and ( ). A: Cell receptor B: Antibody C: Enzyme D: Electric signal
- 1
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
- 2
Which<br/>of the following cell is not labile cell () A: urothelial<br/>cell B: epidermis C: Lymphohematopoietic<br/>cell D: hepatocyte E: respiratory<br/>epithelial cell
- 3
In the following cells, which cell is derived from monocytes A: fibroblast B: macrophage C: mast cell D: plasma cell E: fat cell
- 4
Which of the following are incorrectly paired? ()<br/>A. A: cell: glucagon <br/> B: cell: insulin <br/> C: cell: somatostatin <br/> D: cell: gastrin <br/> E: cell: secretin