The specific compound that is capable of receiving light energy as the first step in sensory transduction is
A. retinal.
B. rhodopsin.
C. cone opsin.
D. vitamin A.
E. melanin.
A. retinal.
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Why do transcription and translation take place in two different locations?
A) DNA is located in the nucleus, whereas the ribosomes needed for translation are not in the nucleus. B) DNA is located in the nucleus, whereas the ribosomes needed for translation are found outside the cell. C) DNA is located in the nucleus, whereas the ribosomes needed for transcription are found outside the cell. D) Translation takes place in the nucleus, whereas the DNA is located elsewhere.
Contraction of the diaphragm causes
A. a person to exhale. B. the size of the chest cavity to increase. C. air to flow from the lungs to the outside. D. compression of the lungs.
Which of the following is NOT a desirable characteristic of an ideal antimicrobial agent?
A) It is inexpensive. B) It is stable during storage. C) It is harmless to humans. D) It only arrests growth of vegetative cells. E) It acts quickly.
One method of release
What will be an ideal response?