One can inject dyes of different sizes into a liver cell and determine those molecules that can readily pass through gap junctions. What sized molecules can pass through gap junctions?
A. <1,000 Daltons
B. >1,000 Daltons, but <1,500 Daltons
C. >10,000 Daltons
D. >5,000 Daltons, but <10,000 Daltons
E. >1,500 Daltons, but <5,000 Daltons
A. <1,000 Daltons
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What is the role of the villi?
A. To secrete digestive enzymes into the digestive tract B. To secrete water into the digestive tract C. To absorb small nutrient molecules from the digestive tract D. To move food along the digestive tract
Which gland produces both aldosterone and cortisol?
a. hypothalamus b. adrenal cortex c. anterior pituitary d. thyroid e. pineal
Even a single stimulus can activate protein kinase A in presynaptic neurons involved in the gill-withdrawal reflex in Aplysia.
Answer the following statement true (T) or false (F)
If recombination results in random integration of a DNA sequence so that it produces a non-homologous region, the recombination is ________
Fill in the blank(s) with correct word