Which pituitary hormone acts on the thyroid gland?
A) TSH
B) ACTH
C) FSH
D) HGH (STH)
Ans: A) TSH
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A young girl falls while riding her bicycle. Initially she seems fine, but later she is complaining of severe femoral pain. Where is her pain?
A) Her knee B) Her foot C) Her thigh D) Her lower leg
What is all of the DNA in a set of 23 chromosomes referred to as?
A. The phenotype B. A chromatid C. The karyotype D. The genome E. A centromere
Salt was added to a beaker of distilled water (the water was not stirred). A sample taken from the bottom of the beaker was found to be 20% salt. At the same time, a sample taken from the top of the beaker was found to be 2% salt. After 24 hours
A. the samples would still be 2% and 20% respectively. B. the difference in the percentage of salt between the top and bottom samples would increase. C. the salt would float to the top. D. the percentage of salt in the top and bottom samples would be approximately equal. E. None of the choices are correct.
In one form of endocytosis a molecule binds to a specific protein on the cell surface and triggers vesicle formation and endocytosis. What type of transport is this?
A. Active exocytosis B. Pinocytosis C. Facilitated diffusion D. Receptor-mediated endocytosis