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Tutor profile: Juan D.

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Juan D.
Engaging Math & Science Tutor, over 5 years expeirence
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Questions

Subject: Biology

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Question:

Despite years and years of credible and tested scientific evidence, global warming is said to be "fake news" by many people across the world. The rising sea levels, increase in temperatures in the ocean and cities, and the stark changes in climate are obvious results of global warming. This phenomenon also has an important impact on CELLS. What is one impact the increase in temperature can have the function and health of cells?

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Juan D.
Answer:

Extreme increases in temperature are not only uncomfortable to live in but often not very safe. On the cellular level there are several functions affected by temperature but perhaps the most obvious is the effect an increase in temperature has on protein. Proteins have an optimal temperature, osmolarity, and pH. When any of those parameters are pushed out of wack, the protein DENATURES. Increasing the temperature past the optimal temperature range can break the bonds that hold the protein together and basically kill the protein.

Subject: Anatomy

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Question:

Rythro is a red blood cell traveling through the human cardiovascular system. Detail the path Rythro will take if it needs to get from the venous circulation in the thorax, to the arterial circulation.

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Juan D.
Answer:

Rythro (clever name right?) will have to go through the tumultuous pathway of blood through the heart. Remember that the venous circulation in the thorax is primarily carried by the vena cava (superior draining for the neck and head, and inferior, draining the rest of the body) and drains into the RIGHT ATRIUM. The blood then rushes past the tricuspid valve into the RIGHT VENTRICLE. Be sure to review the physiological background of the blood movement, paying close attention to the changes in pressure! From the RIGHT VENTRICLE the blood then moves through the PULMONARY VALVE into the pulmonary circulation (lungs). The now oxygenated blood then moves back into the heart to the LEFT ATRIUM. The mitral or bicuspid valve lets the blood go to the LEFT VENTRICLE. Lastly, the ventricle pushes blood through the aortic valve into the....AORTA!

Subject: Algebra

TutorMe
Question:

Drake is having his last concert of the year! Sasha and her friends are planning to attend and want to calculate how much money they will spend. The ticketing company charges a one-time fee of $7.50 per order, and $85 per ticket. Write an algebraic expression that will help X number of friends calculate the total cost attending the concert.

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Juan D.
Answer:

We've all been there, a must-go concert that will definitely give us the FOMO sickness at the thought of missing it. This question tests the topic of algebraic expressions and a bit of linear equations. To solve it we must first identify the variable = X (number of friends buying tickets). Then set up the equation using what YOU KNOW and what YOU'RE TRYING TO FIND. Will the one-time fee per order vary along with the number of friends? No. So, therefore, the $7.50 will NOT be affected by the X. Total = $7.50 + $85(X)

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