Explanation:
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Pulmonary surfactant is a mixture of lipids and proteins which is secreted into the alveolar space by epithelial type II cells. The main function of the surfactant is to lower the surface tension at the ir/liquid interface within the alveoli of the lung. In babies born prematurely, pulmonary surfactant may not be present in adequate amounts due to insufficient exocytosis in type II alveolar cells.
Answer:
A. Glucose leaves the cell through the GLUT-1 uniporter, traveling down the new concentration gradient.
Explanation:
The Glucose transporter 1 (GLUT1) protein is a critical uniporter transporter that facilitates the movement of glucose molecules across the plasma membrane. The expression of GLUT1 is increased when glucose concentration is reduced and, inversely, GLUT1 expression is reduced when glucose levels are increased. The erythrocytes are cells that continuously require the supply of glucose from the blood plasma, this mechanism involves the function of GLUT1 that permits the energy-free passage of glucose by diffusion.
Answer is: <span>c. they both connect the two hemispheres.
</span>Corpus callosum<span> is a wide </span>commissure<span> beneath the </span>cerebral cortex<span> in the </span>brains<span> of </span>placental mammals. Corpus callosum <span>connects the left and right </span>cerebral hemispheres <span>and enables communication between the hemispheres.
</span>Interior commissure<span> </span>is a bundle of nerve fibers<span>, connecting the two temporal lobes of the cerebral hemispheres across the midline.</span>
