When cells are not responding to normal
controls over growth and division, they form a
tissue mass known as a
a. metastasis.
b. malignancy.
c. tumor.
d. carcinogen.
e. nucleosome
C
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When the pituitary gland releases thyroid-stimulating hormone (TSH), the hormone circulates throughout the entire bloodstream, yet only the cells of the thyroid gland respond. This specificity is due to the presence of _____ in the cell membranes of the thyroid
1.adhesion proteins 2.receptor proteins 3.recognition proteins 4.transport proteins
Which will exhibit the most shared maternal effects (uterine environment, etc.), identical or fraternal twins?
What will be an ideal response?
Which component of the following reaction is the substrate? sucrose + sucrase + water ? sucrase + glucose + fructose
A) sucrose B) sucrase C) glucose D) fructose
Electron transport takes place in the ________
A) mitochondria B) chloroplasts C) cytoplasm D) ribosomes