Cells, tissues, organs and organ systems Knowledge-Based Practice

Questions

1. 1.

   Which of the following statements accurately characterizes the tissue level of structural organization in the human body?

   • A) It consists of multiple organs cooperating to carry out broad physiological processes.
   • B) It consists of a group of structurally similar cells and their intercellular matrix functioning together to perform a specialized task.
   • C) It represents an independent functional unit formed exclusively by a single solitary cell carrying out all life activities.
   • D) It is an anatomical structure composed of at least two distinct organs enclosed within a common membrane.
2. 2.

   Which of the following statements best distinguishes an organ system from an individual organ in human anatomical organization?

   • A) An organ is formed by several organ systems working collectively, whereas an organ system contains only one uniform tissue type.
   • B) An organ independently coordinates all systemic physiological functions, whereas an organ system is confined to isolated cellular tasks.
   • C) An organ system comprises multiple integrated organs working together to accomplish broad physiological functions, whereas an organ is a discrete structure of multiple tissues performing specific tasks.
   • D) An organ consists solely of identical cells operating in isolation, whereas an organ system forms the microscopic architectural framework of individual cells.
3. 3.

   Which of the following structures in the human body is classified at the organ level of structural organization?

   • A) An erythrocyte circulating through capillaries
   • B) Stratified squamous epithelium lining the oral cavity
   • C) The stomach functioning in mechanical and chemical digestion
   • D) The digestive tract coordinating nutrient processing
4. 4.

   Which sequence correctly arranges the levels of structural organization in the human body from the simplest unit of life to the most complex functional level?

   • A) Cells → tissues → organs → organ systems
   • B) Tissues → cells → organ systems → organs
   • C) Cells → organs → tissues → organ systems
   • D) Organs → tissues → cells → organ systems
5. 5.

   Which of the following statements correctly describes the structural relationship between tissues and organs in the human body?

   • A) Tissues are formed when multiple organ systems interact to perform a single systemic function.
   • B) An organ consists of a single specialized cell type that carries out all necessary physiological activities.
   • C) An organ is composed of two or more distinct tissue types working together to perform specific complex functions.
   • D) Individual cells aggregate directly into functional organ systems without forming intermediate tissue structures.

Answers and step-by-step solutions appear after you finish the test.