The answer would be: <span>secretes mucus that is not identical to stomach mucus
</span>
Stomach cell lining is protected by a thick mucus that prevents the acid from destroying the epithelial cells. But the mucus that secreted by the esophagus is different than the stomach. That makes esophagus can't protect itself from the stomach acid.
Answer:
Chloroplasts the food producers of the cell. But Those are only located in plants
siRNA prevent gene expression by binding to the product of transcription because <u>they bind to mRNA</u>
Explanation:
siRNA are short-sequence RNA strands, about 20 bp long, that bind to complementary regions on transcribed mRNA. This causes the formation of regions of dsRNA on the mRNA. This subsequently result in recruitment of enzymes such as Diver enzyme to cleave the mRNA and hence rendering it ineffective for translation into proteins. This is how siRNA negatively regulate genes, a process that has also been identified in research as a window to remedy genetic diseases.
Learn More:
For more on gene regulation check out;
brainly.com/question/7196655
brainly.com/question/12872159
#LearnWithBrainly
Answer:
Carrier proteins are responsible for the facilitated diffusion of sugars, amino acids, and nucleosides across the plasma membranes of most cells.
Explanation:
