Which of the following is a characteristic of facilitated diffusion (passive tra

Question

Which of the following is a characteristic of facilitated diffusion (passive transport) of a molecule across a membrane? its rate is higher than that of simple diffusion of the molecule. It is highly specific for the molecule being transported. The direction of transport is determined by concentration and/or electrochemical gradients. The rate of transport is saturable All of the above are true Which of the following is an example of indirect active transport? Na^+/K^+ ATPase aquaporin water transport CFTR Cl^- transport Na^+/glucose symport glucose permease transport The breakdown of glucose to pyruvate by a cell is an example of what type of reaction? anabolic aerobic catabolic apoptotic synthetic The ATP "high-energy" or energy-rich" bonds are which of the following types of bond? phosphoester phosphoanhydride hydrogen ionic monophosphate consider the following list of phosphorylated compounds with their free energies of phosphate hydrolysis: Glucose-1-phosphate: -5.0 kcal/mol PEP: -14.8 kcal/mole ATP: -7.3 kcal/mol which of these molecules could phosphorylate an unknown compound whose free energy of phosphate hydrolysis is 10.3kcal/mol? Glucose-1-phosphate only PEP only ATP only ATP and PEP All three could phosphorylate the unknown compound. oxidation reactions in biological systems generally involve

Explanation / Answer

Answer:

(38)

E. all of the above

Facilitated diffusion is faster than simple diffusion, it doesn’t need ATP and it is always down the chemical gradient.

(39)

D. The Na+/glucose transport

Indirect active transport uses the downhill flow of an ion to pump some other molecule or ion against its gradient. An example is the Na+/glucose transporter protein which allows sodium ions and glucose to enter the cell together.

(40)

C.Catabolic

Breakdown of glucose to pyruvate is a catabolic process (molecules are broken down. During Catabolic reactions)

(41)

B. phosphoanhydride bonds

The phosphoanhydride bonds of ATP represent chemical potential energy. Hydrolysis of these bonds release energy.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.