Biology achiever test #3

[Danny289]

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Oxygen deficient blood in the human body may be traced at:
this is the question in achiever and the answer is " right atrium of the heart"
based on achiever. another answer is "aorta" that i beilieved is correct answer. I checked with Bio book it seems aorta is the answer.
I am missing something here?

 

[Mstoothlady2012]

Oxygen deficient blood in the human body may be traced at:
this is the question in achiever and the answer is " right atrium of the heart"
based on achiever. another answer is "aorta" that i beilieved is correct answer. I checked with Bio book it seems aorta is the answer.
I am missing something here?

oxygen deficient blood is found in right atrium.

Aorta has the most oxygenated blood which supplies blood to rest of your body. Why would it have oxygen deficient blood?

 

[klutzy1987]

Your blood gets oxygenated in he alveoli, goes to the left atrium-->left Ventricle-->Aorta. Therefore the aorta would be full of oxygenated blood.

 

[Thundercatz]

yea. the answer is right atrium. The most oxygenated would be the left atrium as blooding leaving the lungs goes to the pulmonary veins to the left atrium.

Remember that the right atrium is in the pulmonary system, which carries to the blood to the lungs so it can oxygenated. Oxygenated blood leaves the lungs to systemic system and provides oxygen for the rest of your body.

 

[Danny289]

ok, guys, this is from campbell:
"When the O2 level is severely depressed-at high altitude, for instance, O2 sensors in the aorta and carotid arteries in the neck send alarm signals to the breathing control centers,......"

 

[klutzy1987]

ok, guys, this is from campbell:
"When the O2 level is severely depressed-at high altitude, for instance, O2 sensors in the aorta and carotid arteries in the neck send alarm signals to the breathing control centers,......"

So their are sensors their, but their certainly isnt any oxygen deficient blood there. It means that the blood has lower oxygen levels than usual but not that the oxygen levels there are lower than other lpaces in the body.

 

[Danny289]

So their are sensors their, but their certainly isnt any oxygen deficient blood there. It means that the blood has lower oxygen levels than usual but not that the oxygen levels there are lower than other lpaces in the body.

I got it thanks, confused with sensors, a little bit over analizing 🙂 the question, actualy it is the easiest question can possible.

 

[osimsDDS]

ok, guys, this is from campbell:
"When the O2 level is severely depressed-at high altitude, for instance, O2 sensors in the aorta and carotid arteries in the neck send alarm signals to the breathing control centers,......"

yea, thats just telling you that there are receptors in the aorta and carotid arteries...when you intake O2 and it travels from left atrium to left vetricle and then aorta the receptors there are telling your brain that there is less O2 because of elevation/high altitude...not to be confused with just zero O2...

The most amount of oxygen is going to be found in the left atrium/left ventricle

The least amount of oxygen (deoxy) is going to be found in the right atrium/right ventricle becuase thats where all the waste (CO2) from your body is coming via the inferior and superior vena cava's

 

[Mstoothlady2012]

ok, guys, this is from campbell:
"When the O2 level is severely depressed-at high altitude, for instance, O2 sensors in the aorta and carotid arteries in the neck send alarm signals to the breathing control centers,......"

exactly that's the whole point of having those receptors in aorta. Aorta "usually" should have oxygenated blood, if it doesn't that these sensors detect it and send it to medulla oblangata or whatever to start breathing faster and make more oxygen available to lungs for higher O2 exchange rate.

 

[Thundercatz]

ok, guys, this is from campbell:
"When the O2 level is severely depressed-at high altitude, for instance, O2 sensors in the aorta and carotid arteries in the neck send alarm signals to the breathing control centers,......"

Danny, just think about it for a second. The right atrium is carrying blood to the lungs. What does the lung do? The lung replenishes the blood with more O2. Would it make any sense to carry blood with high level of O2 already back to the lungs?

 

[PooyaH]

ok, guys, this is from campbell:
"When the O2 level is severely depressed-at high altitude, for instance, O2 sensors in the aorta and carotid arteries in the neck send alarm signals to the breathing control centers,......"

Chakereh Danny joon,

Aorta gets the signal when blood has low O2, but that doesn't mean aorta is oxygen deficient! It still carries oxygenated blood, but it just receives the signal that blood O2 is low and consequently sends a signal to the breathing control centers! Right atrium is definitely oxygen deficient!

 

[Danny289]

Chakereh Danny joon,

Aorta gets the signal when blood has low O2, but that doesn't mean aorta is oxygen deficient! It still carries oxygenated blood, but it just receives the signal that blood O2 is low and consequently sends a signal to the breathing control centers! Right atrium is definitely oxygen deficient!

I don't accept advice from " perspolis Fans" 😡

😀 😀

 

[Danny289]

I got it guys thanks, it is funny how i confused this very simple question, I hope it is not gonna happen in real DAT 😀

 

[shoombol tallah]

I don't accept advice from " perspolis Fans" 😡

😀 😀

haha damet garm thats what im talking about !!

BTW there is another question in the bio section of achiever 3 that i think has an explanation in the solution that is wrong. Its the last question and the explanation or solution says that sperm does not have an X chromosome. If sperm doesn't have an X chromosome then how does the father pass on his X chromosome to his daughter? Anyone notice that too?

 

[PooyaH]

I don't accept advice from " perspolis Fans" 😡

😀 😀

yeah yeah yeah....I just hope you guys get 12th next season and not 14th!!! 😀

 

[Danny289]

haha damet garm thats what im talking about !!

BTW there is another question in the bio section of achiever 3 that i think has an explanation in the solution that is wrong. Its the last question and the explanation or solution says that sperm does not have an X chromosome. If sperm doesn't have an X chromosome then how does the father pass on his X chromosome to his daughter? Anyone notice that too?

very bad wording in achiever, sometimes it is word games like this question
achiever saying "Sperm cell -- contains X and Y chromosomes"
look at these words just you add "s" to the cell, the answer will be correct or change and to "or"
because sperm cell can not have X and Y in same time. it can just carry one of them.
hope it helped

 

[shoombol tallah]

very bad wording in achiever, sometimes it is word games like this question
achiever saying "Sperm cell -- contains X and Y chromosomes"
look at these words just you add "s" to the cell, the answer will be correct or change and to "or"
because sperm cell can not have X and Y in same time. it can just carry one of them.
hope it helped

No that part i understand. But in the solution it says that sperm cells dont have an X chromosome. I dont think thats possible is it?

 

[achilles2]

it sounds like the questions is asking when will your BODY sense that its blood is 02 levels are low....that would be the aorta and other baroreceptor locations like the carotid arteries in the neck