Which of the following white blood cells have
receptors for activated complement proteins?
a. dendritic cells, macrophages, and
neutrophils
b. mast cells, macrophages, and neutrophils
c. dendritic cells, B lymphocytes, and
neutrophils
d. dendritic cells, eosinophils, and
macrophages
e. all of these white blood cells have receptors
for activated complement proteins
A
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Ligand binding to a receptor kinase results in:
A. phosphorylation of the cytoplasmic domain of the receptor. B. binding of cytoplasmic signaling molecules. C. receptor dimerization. D. All of these answer options are correct.
Why is the operon arrangement of genes beneficial to certain bacteria?
A. It allows for the differential regulation of individual genes that encode proteins with a common function. B. It allows the coordinated regulation of a group of genes that encode proteins with a common function. C. It allows the separate regulation of individual genes that encode proteins with different functions. D. It allows the coordinated regulation of a group of genes that encode proteins with different functions. E. It allows for coordinated regulation of a group of proteins involved in numerous cellular activities.
Resistance activities increase muscle mass by ____
a. stretching muscles b. increasing the number of mitochondria in cells c. encouraging the synthesis of more actin and myosin filaments d. encouraging the production of more muscle fibers e. converting red fibers to white fibers
This figure represents which aspect of plant regulation?
1.Phototropism
2.Elongation
3.Polarity
4.Abscission
