living things are alive and they eat and breath air. like so humans, plants, animals.
non-living things are not alive so they dont eat or breath air. for example sunlight, rocks, water, air
D. They contain many carbon atoms
Muscles transfer force to bones through tendons. In an antagonistic muscle pair as one muscle contracts the other muscle relaxes or lengthens. ... The muscle that is contracting is called the agonist and the muscle that is relaxing or lengthening is called the antagonist. One example is tricep
<h2>b) option is correct </h2>
Explanation:
- Some bacterial toxins cause disease by altering the activity of G protein, cholera toxin is one of them
- Cholera toxin catalyse ADP ribosylation of Gs and blocks GTPase activity thus Gs GTP become permanently active
- Constitutive activation of Gs protein continuously induce adenylyl cyclase, cytosolic cAMP level rises that leads to activation of protein kinase A (pKA)
- Activated pKA catalyse phosphorylation of two transmembrane proteins of intestinal epithelial cells:
- CFTR cause excessive outflow of Cl- ion and Na+ H+ exchange cause efflux of Na+ ion, both enters in gut and form Na+ Cl-
- Na+Cl- leads to outflow of water from the gut, resulting in diarrhea and dehydration and this condition may cause death of organisms due to loss of water and ions
