Under favorable conditions, plasmodial slime molds exist primarily as ____
a. a coordinated, multicellular mass
b. individual amoeba-like cells
c. individual flagellated cells
d. a single, multinucleated cellular mass
e. spore-forming fruiting bodies
ANSWER: d
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A phosphate group is a compound containing phosphorus ____
a. and calcium attached to a base b. and sodium attached to a sugar c. chemically bonded to thymine d. chemically bonded to four oxygen molecules e. chemically bonded to three nitrogen molecules
Spores known as akinetes are reproductive structures of
A. members of the Bacillus genus. B. members of the genus Mycoplasma. C. members of the proteobacteria. D. members of the Archaea. E. members of the cyanobacteria.
If you had the ability to save from extinction only the lineages derived from two of the nodes listed below from the figure above, which two would you choose to preserve for the most phylogenetic diversity?
a. nodes e and f b. nodes d and e c. nodes c and d d. Any of the above choices are equivalent.
Hydrolysis reactions are commonly used inside the cell to split high-energy covalent bonds. For each of the three reactions below, use the ?G° for each reaction to determine the equilibrium constants (K)
Assume that each reaction occurs independently of the other two. ?G° (kcal/mole) Reaction 1: acetyl-P -> actetate + P –10.3 Reaction 2: ATP -> ADP + P –7.3 Reaction 3: glucose6-P -> glucose + P –3.3