The luminal contents of the same organ that secretes the hormone into the blood inhibits the further release of ______.
A. gastrin
B. cholecystokinin
C. secretin
D. gastric inhibitory peptide
E. insulin
A. gastrin
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For each function described below, choose the cytoskeletal element it best characterizes (some of the functions listed are carried out by more than one cytoskeletal element): a. microtubules b. microfilaments c. intermediate filaments
________ provide structural support for epithelial cell shape (keratins) ________ enable movement of cells ________ enable movement of substances within cells ________ provide structural support for fibroblast cell shape (vimentins) ________ arrange and tether organelles within the cytoplasm ________ provide cellular movement as a component of cilia flagella ________ provide structural support for nuclear envelopes (lamins) ________ attach to the cytoplasmic surfaces of desmosomes ________ provide structural support to cells and layers of cells through attachment to adherens junctions ________ help cells to withstand compression when organized a spokelike array by the centrosome ________ separate chromosomes during cell division when organized in a spindle apparatus _______ provide a contractile ring to separate cells during cell division ________ support the plasma membrane and organize membrane proteins ________ shorten cell shapes during contraction What will be an ideal response?
Based only on this Southern blot and with no knowledge of which of the ?-globin SNPs you are looking at, which lane(s) might represent(s) a heterozygous individual?
What will be an ideal response?
According to the data, the crickets at 25°C have greater oxygen consumption per gram of tissue than do the crickets at 10°C. This trend in oxygen consumption is the opposite of that in the mice. The difference in trends in oxygen consumption among crickets and mice is due to their
(A) relative size (B) mode of nutrition (C) mode of internal temperature regulation (D) mode of ATP production
An anaerobic organism lacks the enzymes necessary for using __________ in respiration.
A) carbon dioxide B) water C) superoxide D) oxygen