ATI RN
Exam Questions on Cells Tissues and Organs Questions
Question 1 of 5
The conversion of fibrinogen to fibrin
Correct Answer: C
Rationale: Thrombin (from prothrombin) cleaves fibrinogen, and fibrin monomers polymerize to form clots; heparin inhibits thrombin.
Question 2 of 5
Potassium depletion
Correct Answer: A
Rationale: Muscle biopsy reveals low K+; GI losses (e.g., diarrhea) deplete K+; it reduces muscle activity.
Question 3 of 5
While doing work and running, you move your organs like hands, legs etc. Which among the following is correct?
Correct Answer: D
Rationale: Skeletal muscles or striated muscles are present in the body wall and the limbs, i.e biceps and triceps of arms, legs whose contraction and relaxation are in the control of organism, called voluntary muscles attached to the bones by tendons. When they contract, the tendon moves the bone for the movement of limbs.
Question 4 of 5
Which of the following helps in repair of tissue and fills up the space inside the organ?
Correct Answer: C
Rationale: Areolar is connective tissue in animal's body between skin and muscles, around blood vessels and nerves, and in the bone marrow which fills the space in the organs, supports internal organs and repair tissues.
Question 5 of 5
Survival of plants in terrestrial environment has been made possible by the presence of
Correct Answer: B
Rationale: Xylem and phloem are the complex permanent tissues called vascular bundle which are present in higher plants and help to survive without water in terrestrial environment.