举一反三
- Short regions of α helix are especially abundant in proteins that are embedded in cell __________, such as transport proteins and receptors.
- KDEL序列是ER可溶性蛋白的驻留信号，因此识别KDEL的受体只分布在ER膜上。
- The first step in the secretory pathway, from the ER to Golgi, is mediated by ( ).
- Some nuclear receptor proteins may be activated by intracellular metabolites rather than by secreted signal molecules.
- The method that can be used to sequence the proteins is A: MS B: X-ray cystallography C: NMR D: Cyro-EM
内容
- 0
Which of the following statements about non-coding DNA is true ()? A: DNA sequences that do not encode proteins B: DNA sequences that do not encode RNA and proteins C: DNA sequence without function D: DNA sequence without phenotype after deletion<br/>[单选题][2分][难度3]
- 1
The fermented Pu’er tea is called（ ）， it has gone through pile-fermentation procedure and it belongs to the dark tea. A: fermented B: ripe Pu’er C: raw Pu’er D: pile Pu’er
- 2
Which of the following transport requires NO transport proteins A: Simple diffusion B: Facilitated diffusion C: Ion channels diffusion D: Co-transport E: Na+-K+ pump
- 3
() is a kind of international multimodal transport. A: Through transport B: Overland Common Point C: Intramodal transport D: Interior Point Intermodal
- 4
The primary structure of proteins consists of a sequence of amino acids linked together by peptide bonds and includes any disulfide bonds.