The number of substrate molecules converted to product in a given unit of time by a single enzyme molecule at saturation is referred to as the:

#Question id: 927

#Unit 1. Molecules and their Interaction Relevant to Biology

In the disease sprue, vitamin B12 (cobalamin) is poorly absorbed in the intestine, resulting in B12 deficiency. If each of the following fatty acids were in the diet, for which one would the process of fatty acid oxidation be most affected in a patient with sprue?

#Question id: 1252

#Unit 4. Cell Communication and Cell Signaling

 Following statements are regarding to the phosphoinositide signaling pathway.

A. Many RTKs and cytokine receptors can initiate the IP3/ DAG signaling pathway by activating phospholipase Cβ (PLCβ), a different PLC isoform.

B. Activated RTKs and cytokine receptors also can initiate another phosphoinositide pathway by binding a PI-3 kinase, thereby allowing the enzyme access to its membrane-bound phosphoinositide substrates, which then become phosphorylated at the 3 position.

C. Protein kinase B (PKB) becomes partially activated by binding to PI 3-phosphates with its PH domain.

D. Full activation of PKB requires phosphorylation by the kinase PDK1, which is also recruited to the membrane by binding to PI 3-kinase, and by a second kinase, PDK2.

Which of the following combination is incorrect?

#Question id: 20028

#Unit 13. Methods in Biology

#Question id: 19216

#Unit 12. Applied Biology

#Question id: 15719

#Unit 11. Evolution and Behavior