Which statement regarding STRA6-mediated retinol uptake is best supported by the passage? Retinol uptake activity by STRA6 is limited without the presence of intracellular binding proteins. The expression of STRA6 is likely to be higher in the liver than in target organs. Retinol uptake activity by STRA6 is accelerated when retinol is stored as intracellular retinol rather than as retinyl esters. Binding of holo-RBP to STRA6 is likely to have a Hill coefficient greater than 1.

Neelaredoxin is a 15-kda protein that is a gene product common in anaerobic prokaryotes. it has superoxide-scavenging activity, and it is constitutively expressed. in addition, its expression is not further induced during its exposure to o2 or h2o2 (silva, g., et al. 2001. j. bacteriol. 183: 4413–4420). which of the following statements best describes neelaredoxin synthesis? a-neelaredoxin is produced at all times; levels are constant even when exposed to o2 or h2o2.b-neelaredoxin is produced at all times; exposure to o2 or h2o2 increases expression.c-neelaredoxin is produced at all times; exposure to o2 or h2o2 decreases or prevents expression.d-neelaredoxin is only produced when there is exposure to o2 or h2o2.

The reactions that occur in the ribosome, where amino acids are combined to form proteins are anabolic or catabolic?

Awolf pack hunts,kills, and feeds on a moose. in this interactions, the moose is a?