Carbon monoxide causes a decrease in oxygen transport to muscles during exercise.
a. true
b. false
a. true
You might also like to view...
Which statement is NOT correct about the trp operon?
A. Tryptophan acts as the corepressor. B. The structural genes make products that are part of an anabolic pathway for the synthesis of tryptophan. C. Tryptophan binds to the repressor protein and inactivates it. D. It is normally turned off if tryptophan is present.
Which of the following is true regarding single pass transmembrane proteins?
A. They traverse the membrane more than once and can only be extracted by using detergents B. Have 2-20 hydrophobic segments C. Protrude from only one side of the membrane D. Are comprised of 90% beta-sheet structures E. Contain only one hydrophobic segment
An allele known as BRCA1 is often found in women with breast and ovarian cancer. However, some women develop these cancers and do not have the BRCA1 allele. In addition, some women who have BRCA1 never develop breast or ovarian cancer. How can this be
explained? A) Something other than the gene must factor into whether cancer develops. B) It is just chance whether cancer will develop. C) The BRCA1 allele must be dominant. D) These types of cancers are in no way associated with specific alleles.
Steroid hormones _________.
a. bind to a receptor inside the target cell b. are made from cholesterol c. cause the cell to make new proteins d. all of these