Answer:
B
Explanation:
"Energy is generated in a red dwarf in the same way that it is in the Sun, namely through the fusion of hydrogen into helium. ... So long is the process, in fact, that the lifespan of a red dwarf can be far longer than the expected age of the universe, thought to be about 14 billion years."
Answer:
All of the above.
Explanation:
Allosteric protein may be defined as the protein that has multiple ligand sites and binds to the site other than the active site. Allosteric protein is involved in the regulation of metabolic pathways of the body.
Allosteric protein does not follow the Michaelis-Menton kinetics. These proteins are multisubunit protein and has the different binding sites for the effector as well as substrate molecule. These proteins are present at the committing steps of the metabolic pathways.
Thus, the correct answer is option (e).
Answer & Explanation:
All archeas are single-celled organisms, and despite having prokaryotic cells, there are both similarities and differences between archaea and bacterial cells and also with eukaryotes.
Archaea have only one cell that has no nucleus or real organelles, and its cells have membranes composed of branched lipids, which greatly alter the structure of the archaeal cell membranes. In addition, the archaea have only one DNA strand (uniqueness).
Animal cells differ from archeas because they are multicellular (organisms with several cells), each one having a nucleus, and they also have specialized organelles.
In addition, animal cells have compounds called phospholipids in their membranes, which are unbranched lipids, and therefore do not cause major changes in the structures of their cells. Finally, animal cells have double-stranded DNA (complementary duplication).
