________ bonds are needed for complex shapes of large organic molecules.
A. Ionic
B. Nondirectional
C. Stationary
D. Directional
Answer: D
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In bacterial synthesis of polysaccharides, such as starch and glycogen, glucose is donated to the end of the growing chain by ADP-glucose. A similar reaction occurs in bacterial branching of phospholipids when phosphatidic acid is attached to a ________.
A. dihydroxyacetone phosphate B. fatty acyl-ATP C. acetyl-CoA D. cytidine diphosphate carrier
A microbiologist Gram stains a bacterium and finds the bacterium to be blue to purple in color. This identifies the
A. bacterium as gram-positive. B. bacterium as a disease-causing organism. C. bacterium as an endospore former. D. species of bacterium. E. bacterium as gram-negative.
Chromosomes are aligned at the middle of the cell during _____
a. anaphase b. metaphase c. interphase d. prophase e. telophase
Four of the five choices listed below are periods of
the same cycle. Select the exception. a. G1 b. Mitosis c. Replication d. S e. G2