Answer:
3: A device that uses radioactive fluid to determine the active areas of the brain
Explanation:
A positron emission tomography (PET) scan is an imaging test that helps reveal how your tissues and organs are functioning. A PET scan uses a radioactive drug (tracer) to show this activity. This scan can sometimes detect disease before it shows up on other imaging tests.
Depending on the type of exam, the radiotracer is injected, swallowed or inhaled as a gas. It eventually accumulates in the area of the body under examination. A special camera or imaging device detects radioactive emissions from the radiotracer. The camera or device produces pictures and provides molecular information.
I think the answer would be C. Hope this helps.
Answer:
Gametes
Explanation:
Haploids only contain one type of chromosome. Meiosis results in the production in gametes that are haploid.
Answer:
(B) The concentration of ATP in cells is generally much lower than that of AMP.
Explanation:
AMP is 5’-adenylic acid or adenosine monophosphate. It has only one phosphate group attached to the sugar as compared to three phosphate groups of ATP. In general, cells have a much lower concentration of AMP than ATP. ATP is found in much higher concentration in cells than the AMP since ATP serves as energy currency for the cells while AMP is involved in relatively few metabolic pathways.
The given question is incomplete as the group of choices are missing, however, the group of choices are given as follows:
Select one
a. Protein consists partially of amine groups that are neutral as a result of protonation (of one H ion)
b.Protein contains deprotonated carboxylate groups, resulting in a negative charge
c. The carboxylate groups in protein act very much like carboxylic acid groups (-COOH), except that they are deprotonated
d. If the human body did not act like a buffer solution, each time you ingested an acid the carboxylate groups would protonate, causing the protein structure to disintegrate.
Answer:
The correct answer (incorrect statement) is : option C.
Explanation:
pH of blood should be remain 7.5 in order to make proteins of the body and blood intact and functional. Human protein have neutral amine group due to the protonation and negative carboxylate group due to the deprotonation.
carboxyl group behave like an acid and carboxylate group behave like a base due to the fact that Carboxylate group (-COO-) is conjugate base of Carboxyl group. Human body acts like buffer to prevent the protein from disintegrate.
Thus, the correct answer is : option c.
