ATI TEAS Version 7 Practice Test – Science Questions with correct answers

Which blood group is the universal donor? Correct Answer - Type O A universal blood donor has type O, universal aceptor is type AB. Blood oxygen levels are most likely low when blood _________. Correct Answer - fills the right atrium An intracellular chemical signal can be produced in the cell membrane. Once it is produced, where does it go? Correct Answer - To another part of the same cell After food has been masticated in the oral cavity, where does it go next? Correct Answer - pharynx The diffusion of nutrients through the walls of the digestive system is critical to homeostasis in the body. Where does the majority of this diffusion take place in the digestive system? Correct Answer - small intestine As soon as an invader, known as a(n) _____, enters the body, the body begins to fight. Correct Answer - pathogen Where is skeletal muscle found? Correct Answer - attached to bones If a person smells something sweet, what form of information is this initially perceived as in the nervous system? Correct Answer - sensory