In skeletal muscle, which of the following is not found in a thin filament?
A. F actin
B. Titin
C. Troponin
D. Tropomyosin
E. Calcium receptors
B. Titin
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This figure shows an example of regulation of hormone secretion by a negative feedback loop. The large box labeled 1 represents the initial stimulus. What endocrine glands are indicated by the letters d and e?
A. d = thalamus, e = anterior pituitary B. d = hypothalamus, e = thyroid gland C. d = hypothalamus, e = posterior pituitary D. d = hypothalamus, e = anterior pituitary E. d = thalamus, e = posterior pituitary
A base is an electrolyte that releases ions that combine with hydrogen ions.
Answer the following statement true (T) or false (F)
Lateral outgrowths of which of the following develop into the cerebral hemispheres?
A. Telencephalon B. Mesencephalon C. Diencephalon D. Metencephalon E. Neural tube
The advantage of having many nuclei in a skeletal muscle fiber is the ability to
A) contract. B) produce more ATP with little oxygen. C) store extra DNA for metabolism. D) produce large amounts of the muscle proteins needed for muscle contraction. E) All of the answers are correct.