What is the sign of ΔG for transport of the glucose against its concentration gradient?
Added by Wayne W.
Step 1
ΔG indicates the spontaneity of a process; a negative ΔG means the process is spontaneous, while a positive ΔG means it is non-spontaneous. Show more…
Show all steps
Your feedback will help us improve your experience
Adi S and 77 other Chemistry 101 educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
For a typical human cell (T=37 °C) with a membrane potential of -0.070 V (inside negative), the concentrations of sodium ions are 12 mM in the cell and 145 mM in blood. Given that it takes two sodium ions to move one molecule of glucose via the sodium-glucose transporter and that for the process to occur, the overall ΔG must be negative, what is the ΔG for the reaction seen below, the transport of glucose by the sodium-glucose transporter? (Keep in mind that this is only half of the reaction that is performed, the other part is the sodium transport--for this question, you just need to energy of the glucose transport). glucose(out) → glucose(in) ΔG = ? less than -26.4 kJ/mole between -26.4 and -13.2 kJ/mole between -13.2 and 0 kJ/mole between 0 and 13.2 kJ/mole between 13.2 and 26.4 kJ/mole greater than 26.4 kJ/mole
Adi S.
Madhur L.
Calculate the free energy of transport in moving glucose from outside the cell to inside of the cell (concentration outside = 5 mM, concentration inside = 1 mM). The potential is - 50 mV, negative inside. The temperature is 298 K. If your answer does not have the correct units it will obtain no credit even if the number is correct.
Riaan S.
Recommended Textbooks
Chemistry: Structure and Properties
Chemistry The Central Science
Chemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD