Serological analysis for bacterial identification typically involves using
A. methods to identify cell enzymes.
B. the analysis of the appearance of colonies.
C. specific antibodies to the bacterial cell antigens.
D. a microscope to determine cell morphology.
E. the determination of guanine + cytosine base concentrations.
Answer: C
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Which of the following always tends to make chemical reactions spontaneous?
A) The reactants have lower potential energy than the products. B) The reactants are more ordered than the products. C) The temperature is low. D) The pressure is low.
The most common limit to plant growth is a lack of ____
a. phosphorous b. carbon c. hydrogen d. oxygen e. nitrogen
contains enzymes that transfer hydrogen from various substrates to oxygen, producing
A. lysosome B. vacuole C. mitochondrion D. Golgi apparatus E. peroxisome
Plant cells, unlike animal cells, are characterized by the presence of a ________
A) cell wall and a contractile vacuole B) cell wall and a central vacuole C) nucleus and a cell wall D) nucleus and a contractile vacuole