The outer segments of cones and rods contain ____
a. metabolic machinery
b. light-inhibiting photopigments
c. light-absorbing photopigments
d. synaptic terminal
e. ciliary muscles
ANSWER: c
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The leading cause of bacterial meningitis in adults is
A. Escherichia coli. B. Haemophilus influenzae. C. Streptococcus pneumoniae. D. Neisseria meningitidis.
Fred Griffith's experiment, in which he used two strains of Streptococcus pneumoniae, demonstrated that _____
a. pathogenic bacteria function differently in mice than in other organisms b. harmless bacteria can become transformed into disease-causing bacteria by a bacteria transformation factor c. pure DNA extracted from disease-causing bacteria transformed harmless strains into killer strains d. dead cells lose their genetic information e. DNA is a protein rich in nitrogen and phosphorus
Assuming resting conditions at sea level, what is the partial pressure of carbon dioxide in systemic veins?
A) 46 mm Hg B) 40 mm Hg C) 160 mm Hg D) 80 mm Hg E) 100 mm Hg
What is meant by the amino acid sequence of a protein?
What will be an ideal response?