At the smallest level of organization, the DNA wraps itself around small globular proteins called histones. Complexes of histones and DNA form nucleosomes, which appear as "beads" on the DNA strand. Chromatin refers to the decondensed DNA that has not formed separate chromosomes.
They help work together because when the heart pmps blood through the body and the cells flow through the blood non stop its like a barrier of protection
Answer: True
Explanation: The basal metabolic rate (BMR) is responsible for about 75% of our calorie expenditure daily. The Basal metabolic rate (BMR) is the energy expenditure rate per unit time by humans or animals at rest. it is the amount of energy per unit of time that we need to keep the body functioning daily even when at rest. Some of these processes that occur even when we are at rest includes blood circulation, brain function, regulation of body temperature, nerve function, cell growth and breathing.
The correct answer is the last statement.
If the regulatory serine is mutated to alanine, then acetyl-CoA carboxylase will get activated spontaneously and will produce malonyl-CoA. The increased concentrations of malonyl-CoA will obstruct the oxidation of fatty acids by preventing the entry of fatty acids into the mitochondria.
It is because the AMP-activated protein kinase phosphorylates the serine residues of acetyl-CoA carboxylase to inactivate it. If a mutation occurs in such residues, then the AMPL cannot phosphorylate acetyl-CoA carboxylase and this enzyme will get activated spontaneously.
In such a situation, there will be more than sufficient production of malonyl-CoA, which will inhibit the admittance of more fatty acid getting inside the mitochondria; this will indirectly prevent the oxidation of fatty acids.
