Cross-bridges are portions of
A) Actin molecules.
B) Myosin molecules.
C) Troponin molecules.
D) Tropomyosin molecules.
E) Calcium ions
B) Myosin molecules.
You might also like to view...
What is the largest of the cranial nerves and the most important sensory nerve of the face?
A) Hypoglossal nerve (XII) B) Trigeminal nerve (V) C) Accessory nerve (XI) D) Facial nerve (VII) E) Abducens nerve (VI)
The hypophyseal fossa of the sella turcica contains the ________ gland
A) lacrimal B) pituitary C) olfactory D) nasal E) sellar
The fetus is surrounded by a protective layer of ________ fluid.
A. amniotic B. fetal C. embryonic D. cerebrospinal
Liam is a body builder and frequently consumes protein powder as part of his fitness regimen. He consumes more protein than his body actually uses. What happens to the excess protein?
A. It is stored in adipocytes after being converted into fats. B. The large proteins are secreted into the distal convoluted tubule by tubular secretion. C. It is broken down into urea by the liver, which is then filtered into the glomerular capsule and also secreted elsewhere in the nephron. D. It is filtered through the glomerular capillary into the glomerular capsule and into the nephron, where it is finally excreted in the urine.