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Tutor profile: Jobin M.

Inactive
Jobin M.
Tutor for two years
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Questions

Subject: Chemistry

TutorMe
Question:

Jimmy got a fully inflated helium balloon for his birthday. He began playing with the balloon outside until his mother called him in for dinner. Jimmy ran inside and forgot the balloon outside. The balloon sat in close to freezing weather outside overnight. What can Jimmy expect when he goes outside in the morning.

Inactive
Jobin M.
Answer:

Jimmy can expect that the balloon will be very flat. While the balloon has not popped, the helium inside the balloon has shrunk due to the constant volume outside and the cold temperature outside. We know this is true based on Charles' Law which states that the volume of a gas is proportional to its temperature.

Subject: Biochemistry

TutorMe
Question:

You and a team of brilliant scientists are studying the energy consumption habits of human red blood cells (RBC) . You notice that one of the RBC samples in your lab cannot produce ATP properly. One of your colleagues suggests that there is a defect in the enzyme Alpha-ketoglutarate dehydrogenase. Explain if your colleague's hypothesis is reasonable.

Inactive
Jobin M.
Answer:

Your colleague's hypothesis is NOT reasonable. Alpha-ketoglutarate dehydrogenase is an enzyme that is primarily used in the Krebs cycle, and the Krebs cycle occurs only in the mitochondrial matrix. Your lab studies human RBCs, which lack basic typical organelles that would be found in other cells; therefore, the Krebs cycle cannot occur in RBCs and Alpha-ketoglutarate dehydrogenase will not be responsible for the lack of ATP. Since glycolysis is the only major metabolic pathway that occurs in RBCs, you can assume there might be a defect involving the glycolytic pathway.

Subject: Algebra

TutorMe
Question:

Jennifer was selling cookies for a school fundraiser. Chocolate chip cookies cost $1, sugar cookies cost $2, and oatmeal cookies cost $3. Jennifer sold 10 more chocolate chip cookies than sugar cookies and twice as many sugar cookies as oatmeal cookies. If Jennifer sold 5 oatmeal cookies, how much money did she make from her combined cookies sales?

Inactive
Jobin M.
Answer:

Since we know that Jennifer sold 5 oatmeal cookies, we can multiple 5 by the price of the oatmeal cookies, $3, to get $15. Next, let's find out how many sugar cookies she sold. If she sold twice as many sugar cookies as oatmeal cookies, we can multiply 5 (number of oatmeal cookies) by 2 to get 10. Since Jennifer sold 10 sugar cookies, we can multiply 10 by the price of the sugar cookies, $2, to get $20. Now let's find out how many chocolate chip cookies she sold. If Jennifer sold 10 more chocolate chip cookies than sugar cookies, we can add 10 to 10 to get 20. Since Jennifer sold 20 chocolate chip cookies, we can multiple 20 by the price of chocolate chip cookies, $1, to get $20. Finally, we can add $15, $20, and $20 to get Jennifer's total cookie profit. Our total comes out to be $55, which means that Jennifer made $55 from her combined cookie sales

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