The binding of ATP to myosin causes an allosteric change in myosin's actin-binding site such that the affinity of myosin for actin is decreased
Indicate whether the statement is true or false.
TRUE
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The major hormone secreted from granulosa cells is
a) Progesterone b) Estrogen c) Testosterone d) Aldosterone e) Relaxin
A man of Mediterranean ancestry goes to his doctor with the following symptoms. He is very tired all of the time. He has difficulty catching his breath after even mild exercise
His doctor orders the following tests: CBC, hematocrit, differential WBC count. The tests show immature erythrocytes, fragile erythrocytes, and less than 2 million RBCs per cubic millimeter. What would be a tentative diagnosis and suggested treatment? What will be an ideal response
What is the correct sequence of events along an axon that follows a membrane
reaching threshold potential? 1. The membrane depolarizes. 2. Sodium channels open and sodium ions diffuse inward. 3. The membrane repolarizes. 4. Potassium channels open and potassium ions diffuse outward. A) 1, 2, 4, 3 B) 4, 1, 3, 2 C) 3, 2, 4, 1 D) 2, 1, 4, 3
Trace the pathway of sperm from the seminiferous tubules to the external urethral orifice of the penis
What will be an ideal response?