If NADH and FADH2 fail to be oxidized as part of the electron transport chain (ETC), what is affected?
A) the phosphorylation and oxidation of glyceraldehyde-3-phosphate
B) the regeneration of oxaloacetate
C) the electromotive force required to drive the electron transport chain (ETC)
D) the formation of acetyl-CoA
Answer: C
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Which organ removes most of the worn-out red blood cells from the circulation?
a. bone marrow b. kidney c. large intestine d. pancreas e. spleen
The skin is sometimes referred to as the
A) cutaneous membrane. B) mucous membrane. C) serous membrane. D) synovial membrane. E) peritoneal membrane.
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
Which muscle is an antagonist to the gastrocnemius muscle?
A) soleus B) plantaris C) flexor digitorum longus D) tibialis anterior