BIOS 251 WEEK 1- TEST QUESTIONS FULLY SOLVED LATEST 2025

BIOS 251 WEEK 1- TEST QUESTIONS FULLY SOLVED LATEST 2025 Which subspecialty of anatomy studies the structures and function of cells? Embryology Systemic anatomy Histology Cell biology Developmental biology - Answers Cell biology Atoms and molecules are part of which level of organization in the human body? Chemical Cellular Tissue Organ System - Answers Chemical A structure made up of two or more types of tissues that performs a specific set of functions is at what level of organization? Chemical Cellular Tissue Organ System - Answers Organ Which system of the body is responsible for elimination of wastes and regulating the volume and composition of the blood, including production of red blood cells? Urinary Respiratory Digestive Endocrine Nervous - Answers Urinary The development of specialized cells from unspecialized stem cells is a description of which of the following basic life processes? Metabolism Movement Growth Differentiation Reproduction - Answers Differentiation Cells are able to transport materials from one region of the cell to another just as the body is able to transport substances to different locations, or skeletal muscles (working with your skeleton) can transport you from the sofa to the refrigerator. What basic life process is illustrated by this description? Metabolism Growth Movement Differentiation Reproduction - Answers Movement Which of the following situations would represent a serious disruption of the homeostasis of the volume and composition of body fluids? Eating a normal meal and drinking a glass of water. Normal urination. Sweating on a warm day, but drinking lemonade in the shade afterwards. Drinking a sports drink after playing a game of basketball with friends. Becoming dehydrated as your lifeboat drifts on the empty ocean. - Answers Becoming dehydrated as your lifeboat drifts on the empty ocean. The homeostasis of the body is controlled through a series of steps called a feedback system or feedback loop. One component of such systems is a control center. Which of the following organs would frequently serve as the control center for a feedback system (remember, the control center evaluates the disruption to homeostasis, and it also triggers a response)? Skeletal muscles Brain Nerve endings in the skin Blood and lymphatic fluid Sweat glands - Answers Brain After working a 12 hour shift at the hospital Louisa comes home and lies down on her bed. She is lying on her back looking up at the ceiling with her head resting on her arms. What is her body position? Prone Anatomical position Supine Lateral Medial - Answers Supine Which pair of terms could be used to describe the location of the nose when compared to the location of the eyes? Medial and superior Lateral and proximal Medial and distal Medial and inferior Superior and distal - Answers Medial and inferior Maintenance of homeostasis requires small increases and decreases in body levels. - Answers True A loss of control of homeostasis can lead to disease or even death. - Answers True Normal limits are ranges of body functions on either side of a set equilibrium. - Answers True When homeostasis is disrupted, one or more body functions have moved outside of normal limits. - Answers True Only external stresses can disrupt homeostasis. - Answers False Shivering adjusts low body temperature to normal body temperature. - Answers True Which of the following does not require medical attention? Prolonged high fever. High blood pressure. High body temperature after exercise. All of these. - Answers High body temperature after exercise How does the endocrine system control homeostasis? Decreased heart rate. Release of hormones. Increased nerve impulses. None of these. - Answers Release of hormones What can receptors detect? Loss of homeostasis. Need for medical attention. A return to homeostasis. Loss of homeostasis and a return to homeostasis. - Answers Loss of homeostasis and a return to homeostasis The integrating center for homeostasis in the body is