Which carbohydrate, found only in plants, is indigestible by humans?
a. glycogen
b. starch
c. glucose
d. sucrose
e. cellulose
ANSWER: e
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Acetylcholine, a neurotransmitter, binds to ____
a. receptor tyrosine kinases b. ligand-gated ion channels c. adenylyl cyclase d. MAPK e. G-coupled protein receptors
In the accompanying figure illustrating the levels of life’s organization, what is represented in frame 3?
a. atom b. tissue c. molecule d. organ e. cell
Current recommendations for the treatment of MRSA infections in the United States will change based on
A. the cost of different antibiotics. B. congressional approval. C. the availability of different antibiotics. D. patterns of antibiotic resistance.
Embryo splitting is a type of cloning in which an egg is fertilized in vitro and
A) then the genomic DNA is replaced with that from a desired donor. B) allowed to reach the fetus stage before implanted into the designated mother. C) then following mitosis, the intact nuclei are transferred to somatic cells for embryo development. D) the cells are split after the eight-cell stage to be implanted into a surrogate mother. E) subjected to nuclear transfer.