GLUTs are integral membrane proteins that assist in the facilitated diffusion of glucose into and out of cells. What reaction in glycolysis prevents glucose from being transported back out of the cell?A. Hexokinase phosphorylates glucose using ADP, creating a glucose molecule that can’t cross the hydrophobic interior of the plasma membrane.B. Hexokinase dephosphorylates glucose using ATP, creating a glucose molecule that can’t cross the hydrophilic portion of the plasma membrane.C. Hexokinase dephosphorylates glucose using ADP, creating a glucose molecule that can’t cross the hydrophilic portion of the plasma membrane.D. Hexokinase phosphorylates glucose using ATP, creating a glucose molecule that can’t cross the hydrophobic interior of the plasma membrane.

Gluconeogenesis, must bypass irreversiblereactions of glycolysis, except:a. Hexokinaseb. Phosphohexose isomerasec. Pyruvate kinased. Phosphofructokinase

17. Transmembrane proteins are involved in the transport of sugars across the plasma membrane.Glucose can be moved into cells by facilitated diffusion using proteins called GLUT proteins. Theseproteins expose a single binding site on one side of the membrane. Glucose binds to this site and causesa change in the shape of the protein. This change moves the glucose across the membrane and releasesit on the other side.i. Explain why facilitated diffusion via GLUT proteins requires no metabolic energy.

Glycolysis is a part of cellular respiration that breaks the glucose molecule down to what? A. Acetyl CoA B. Pyruvic acid C. FADH2 D. ATP and NADH

The phosphorylation of glucose to glucose-6-P in the glycolysis pathway is catalyzed by glucokinase. Which enzyme in the gluconeogenesis pathway catalyzes the reverse reaction (G6P > Glucose)? A. Glukose-6-fosfatase / Glucose-6-phosphatase B. Piruvaatkinase / Pyruvate kinase C. Heksokinase / Hexokinase D. Fosfofruktokinase / Phosphofructokinase E. Fruktose-1,6-bifosfatase / Fructose-1,6-bisphosphatase

Which two processes depend on glucose being able to exit the cell where they occur?Group of answer choicesfermentation and glycogenolysis in the musclegluconeogenesis and glycogenolysis in the liverglycolysis and gluconeogenesis in the liverglycolysis and glycogen synthesis in the liver