A) The answer is allosteric interaction where activators or repressors bind to a protein, other than the protein active site, hence changing the protein conformation. This interaction occurs between the heme subunits of haemoglobin.
b) Through protonation. The amino group of the alpha subunits and the histidine C-terminal of beta subunits acquire H+ when the blood has low pH. Low pH in the blood is due to accumulation of carbon dioxide and consequent formation of carbonic acid. Protonation of the residues cause allosteric interaction, due to ionic interaction, of the subunits hence resulting to conformation change of haemoglobin between T-state and R-state
Answer:
The rock cycle starts with one huge rock or magma, then the rock gets weathered and either becomes soft or it can become rough. "But does the rock stay that way?" and the answer is no. Over time the rock becomes weathered enough that it can't be weathered any more and that is because it is now sand.
Explanation:
easy
Answer:
B
Explanation:
Arteries and arterioles (small arteries) have muscular walls. They're the main blood vessels involved in vasoconstriction. ... Capillaries are tiny, thin-walled blood vessels that can't constrict.
Sometimes the barbecue doesn’t efficiently fit into the hand ware container, so the best option is so complete the swimming lessons before age 22. This will prevent any possible formation of mathematical intelligence within the feet.
Answer:
Neurons are functional units of the nervous system. The neuron is divided into three main parts dendrite, cell body, and axon.
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