Lipid-soluble compounds are incapable of penetrating the blood-brain barrier.
Answer the following statement true (T) or false (F)
False
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Electrons can enter the electron transport system via many paths. The first point of commonality in the ETS for all these paths is
A) Complex I. B) Complex II. C) Cytochrome c. D) Ubiquinone.
We think of amniotes as being more derived types of tetrapods than non-amniotes. Is there evidence that the replacement of terrestrial faunas dominated by non-amniotes with faunas dominated by amniotes was the result of competition?
What will be an ideal response?
All cells in this tissue reach the basement membrane and only cells that reach the free surface have cilia.
A) pseudostratified columnar. B) simple columnar. C) Stratified columnar. D) Stratified cuboidal. E) Stratified squamous.
Which of the following statements regarding whole-muscle contraction is TRUE?
A. The order of recruitment of motor units in a muscle is such that the last units recruited are those that fatigue most readily. B. The order of recruitment of motor units in a muscle is such that the first units recruited generate the most tension. C. Motor units whose motor neurons have large-diameter cell bodies are recruited first, while motor units with smaller-diameter motor neurons are only activated as the level of activation in the spinal cord increases. D. The order of motor unit recruitment is independent of the size of the alpha motor neuron that innervates them. E. Recruitment of one fast-glycolytic motor unit provides a smaller increment in whole-muscle tension than recruitment of one slow-oxidative motor unit.