How would the lack of a cofactor for an enzyme affect that enzyme's function?
A) The enzyme's function would not be altered.
B) The enzyme would function more slowly.
C) The enzyme would function more quickly.
D) The enzyme would not be able to function.
E) The enzyme would cease to function after reaching a maximum rate.
D
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A multifactorial trait is determined by many environmental factors, but not necessarily genetic influences.
Answer the following statement true (T) or false (F)
Sperm cannot perform fertilization until they
A) undergo activation. B) lose their acrosome. C) undergo capacitation. D) are in the vagina for three days. E) All of the answers are correct.
What is the proper sequence of events that occurs in the ear when sound waves hit the tympanic membrane?
A) None of the listed responses is correct. B) displacement of auditory ossicles, displacement of the basilar membrane, occurrence of pressure waves in the perilymph, vibration of hair cells against the tectorial membrane, stimulation of cranial nerve VIII C) displacement of the auditory ossicles, occurrence of pressure waves in the perilymph, displacement of the basilar membrane, stimulation of the cranial nerve VIII, vibration of hair cells against the tectorial membrane D) displacement of auditory ossicles, occurrence of pressure waves in the perilymph, distortion of the basilar membrane, vibration of hair cells against the tectorial membrane, stimulation of cranial nerve VIII
A football player can hear his coach's voice above the noise of the crowd and can sense an opponent about to run him down. These abilities are due to the action of what part of the brain?
A. Pons B. Epithalamus C. Pineal body D. Thalamus E. Hypothalamus