Dietary iron and calcium are always absorbed completely from the digestive tract
Indicate whether the statement is true or false
F
You might also like to view...
A college student had a depressed mood and trouble falling asleep. Which chemical neurotransmitter could cause such problems?
A. Acetylcholine B. Epinephrine C. Endorphins D. Serotonin
The term down-regulation refers to the process by which
A. a glandular cell decreases the amount of hormone it secretes. B. a large amount of hormone shuts down all metabolic activity in a target cell. C. a cell decreases the number of receptors it has for a hormone. D. a carrier protein increases the rate of degradation for a hormone and thereby decreases its blood concentration. E. a carrier protein decreases the rate of degradation of the protein it ferries.
Diffusion of a solute through a solution is decreased by an
A) Increased concentration gradient. B) Increased size of molecule. C) Increased diffusion coefficient. D) Increased diffusion area.
Name the lobes and fissures of each lung
A) The left lung is divided into a superior lobe and an inferior lobe by the oblique fissure. The right lung is divided into a superior lobe and middle lobe by the horizontal fissure, and the oblique fissure separates the superior and middle lobes from the inferior lobe. B) The left lung is divided into a superior lobe and middle lobe by the horizontal fissure, and the oblique fissure separates the superior and middle lobes from the inferior lobe. The right lung is divided into a superior lobe and an inferior lobe by the oblique fissure. C) The left lung is divided into an anterior lobe and a posterior lobe by the vertical fissure. The right lung is divided into an anterior lobe and middle lobe by the horizontal fissure, and the vertical fissure separates the anterior and middle lobes from the posterior lobe. D) The left lung is divided into an anterior lobe and middle lobe by the horizontal fissure, and the vertical fissure separates the anterior and middle lobes from the posterior lobe. The right lung is divided into an anterior lobe and a posterior lobe by the vertical fissure. E) The left lung is divided into a superior lobe and an inferior lobe by the horizontal fissure. The right lung is divided into a superior lobe and lateral lobe by the coronal fissure, and the horizontal fissure separates the superior and lateral lobes from the inferior lobe.