Which statement is false?
a. A molecule must be made of at least two atoms.
b. Compounds are made of elements.
c. Two atoms of oxygen make a molecule of oxygen.
d. Chemical bonds form between molecules of solute and solvent.
e. Elements are found in compounds and molecules.
ANSWER: d
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Many defined growth media that support microbial growth lack malonate, which is an important precursor for biosynthesis of lipid membranes. Based on this, we can infer cells also must have a metabolic pathway to generate malonate from other compounds
Indicate whether the statement is true or false.
The reason segmental duplications pose a logistical challenge in the proper alignment of DNA sequences is that they
A. are inherently repetitive. B. contain large numbers of LINEs, which interfere with sequence annotation. C. interfere with BLAST analysis. D. are often found in areas of constitutive heterochromatin.
Each pair of hydrogens generated in glycolysis are used to ________.
Fill in the blank(s) with the appropriate word(s).
In which part of the brain are memories stored?
a. association areas of cerebellum b. several sensory areas c. limbic lobe of cerebrum d. suprachiasmatic nucleus e. primary sensory areas of parietal lob