Loss of body heat that occurs through submersion in cold water is an example of which of the following?
Evaporation
Convection
Conduction
Radiation
The Correct Answer is C
A. Evaporation is the process by which heat is lost as a liquid (like sweat) turns into a gas. This is not applicable in the case of submersion in cold water, as evaporation only occurs when moisture is on the skin and exposed to air.
B. Convection refers to the transfer of heat through the movement of air or fluids. While cold water can create a convection effect on the body, the primary heat loss in water is due to conduction rather than convection.
C. Conduction is the direct transfer of heat from one substance to another through physical contact. When the body is submerged in cold water, heat is lost to the water through conduction, as the colder water draws heat away from the body.
D. Radiation refers to heat loss through infrared radiation, typically when the body releases heat into the surrounding air. This is not the primary method of heat loss in cold water.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. The kidneys do not play a role in the chemical breakdown of protein. Their primary function is filtration and regulation of blood composition.
B. The mouth is where mechanical digestion (chewing) occurs, but chemical digestion of proteins does not begin there. Enzymes like amylase break down carbohydrates, not proteins.
C. The stomach is where protein digestion begins. The enzyme pepsin, activated by stomach acid (HCl), starts breaking down proteins into smaller peptides. This is the correct answer.
D. The small intestine continues the digestion of proteins, but the initial breakdown occurs in the stomach. The pancreas also releases digestive enzymes, including trypsin, to further digest proteins in the small intestine.
Correct Answer is C
Explanation
A. Oogenesis is the process of egg cell (ovum) formation in females and is responsible for producing gametes, not somatic cells.
B. Spermatogenesis is the process of sperm cell formation in males, also producing gametes, not somatic cells.
C. Mitosis is the process that produces somatic cells. It is a type of cell division that results in two genetically identical daughter cells, each with the same number of chromosomes as the parent cell. Somatic cells are all body cells except for gametes.
D. Meiosis is the process that forms gametes (sperm and eggs), reducing the chromosome number by half to ensure sexual reproduction results in a normal chromosome count. It does not form somatic cells.
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
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.