Water will move through the cell membrane by:
dialysis.
pumps.
facilitated diffusion.
osmosis.
The Correct Answer is D
A. dialysis: This is the diffusion of solutes (not water) across a selectively permeable membrane.
B. pumps: Pumps refer to active transport, which moves substances against a concentration gradient using energy.
C. facilitated diffusion: This is the movement of solutes through a membrane carrier or channel.
D. osmosis: This is specifically the passive movement of water from an area of low solute concentration to an area of high solute concentration.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. weaker the contraction: This is the opposite of the law; a lack of stretch usually results in a weaker stroke volume.
B. slower the heart rate: Starling's Law deals with stroke volume (the force of the pump), not the electrical timing of the heart rate.
C. faster the heart rate: Heart rate is primarily controlled by the SA node and the autonomic nervous system, not fiber stretch.
D. stronger the contraction: Also known as the Frank-Starling mechanism, this law states that the more the cardiac muscle is stretched (due to increased blood filling the heart), the more forcefully it will contract to pump that blood out.
Correct Answer is C
Explanation
A. hemoglobin: This is the iron-containing protein within the cell that carries oxygen, not the cell itself.
B. osteons: These are the structural units of compact bone, unrelated to blood cell production.
C. erythroblasts: These are the immature, nucleated cells in the red bone marrow that eventually synthesize hemoglobin and eject their nuclei to become reticulocytes and then mature erythrocytes.
D. hematopoietic stem cells: While all blood cells originate here, the specific maturation sequence for red blood cells specifically identifies erythroblasts as the intermediate nucleated stage.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today