Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
01. Interest in the study of the human body was first stimulated in human beings by A) the need to stay healthy B) to help women in childbirth C) a concern with illness and injury D) dissatisfaction with supernatural explanations of death 02. In the human body, the most complex level of organization is the A) cell B) tissue C) organ D) organ system 03. ________ are described as groups or layers of cells that have common functions. A) Organs B) Organisms C) Tissues D) Organ systems 04. The sum of all chemical reactions in the body is A) digestion B) metabolism C) assimilation D) growth 05. The self-initiated change in an organism's position or travel from one place to another is A) responsiveness B) absorption C) circulation D) movement 06. Absorption occurs when A) nutrients move from the digestive tract into the bloodstream B) energy is released from food C) nutrients are used to make new chemical substances D) blood is pumped by the heart to supply the muscles with oxygen 07. Removal of products not needed by the body is A) digestion B) absorption C) assimilation D) excretion 08. The most abundant chemical in the body is A) water B) oxygen C) glucose D) carbon dioxide 09. The rate at which chemical reactions take place in the body is controlled by A) oxygen B) pressure C) heat D) available food 10. If the effectors that regulate body temperature do not function correctly, which of the following will not occur? A) skin sensors detect a change in body temperature B) skin sensors report the information to the temperature regulation center C) sweat glands increase perspiration or shivering begins D) the brain compares actual body temperature to normal body temperature 11. In a healthy person, homeostasis means that internal body conditions A) do not change or fluctuate B) change around the set point C) remain exactly at predetermined set points D) change in response to changes in the external environment 12. Choose the best example of positive feedback. A) When the heart rate increases during exercise. B) Something that reinforces or strengthens the original stimulus like labor pains. C) Mechanisms are usually of long duration. D) The dilation of surface blood vessels when a person exercises on a hot day. 13. In maintaining homeostasis, the feedback to the control center is triggered by A) changes away from the set point B) the need to change the set point to accommodate to the new condition C) immediately life threatening conditions D) changes in the external environment 14. Which of the following is not a part of the integumentary system? A) hair B) mediastinum C) skin D) sweat gland 15. The system that is mostly known for excretion is A) digestive system B) urinary system C) nervous system D) endocrine system 16. The spleen is located in the A) abdominal cavity B) pelvic cavity C) mediastinum D) thoracic cavity 17. The brachial region is found on the A) face B) neck C) arm D) leg 18. The shape of cells in the body vary based on A) maturity B) function C) location of reproduction D) ability to reproduce 19. The organelles are found in the A) cytoplasm of the cell B) nucleus of the cell C) cell membrane D) cytoplasm and nucleus 20. Which of the following statements about the cell membrane in the bilayer model is incorrect? A) The membrane forms a boundary around the cellular contents. B) The membrane allows some substances to enter and leave the cell but not others. C) The basic structure of the cell membrane is a lipid-protein bilayer. D) The interior of the cell membrane allows water-soluble substances to pass through it. 21. Energy released from glucose and other nutrients is made useful to cells by the A) endoplasmic reticulum B) Golgi apparatus C) mitochondria D) lysosomes 22. The "garbage disposals of the cell" are the A) endoplasmic reticulum B) centrosomes C) peroxisomes D) lysosomes 23. Which of the following will most likely not reach equilibrium? A) diffusion B) facilitated diffusion C) active transport D) all will reach equilibrium 24. Which term best describes the function of vesicles? A) protein synthesis B) energy production C) transport D) secretion 25. Thin, threadlike processes within the cytoplasm that function in various kinds of cell movement are A) microfilaments and microtubules B) cilia and flagella C) centrioles D) vesicles 26. The nucleolus is a small, dense body composed mainly of A) RNA and protein B) DNA C) invaginated cytoplasm D) chromatin 27. Chromatin fibers coil into rod-like structures known as A) ribosomes B) lysosomes C) chromosomes D) DNA 28. Passive mechanisms that transport materials across the cell membrane include all of the following except A) diffusion B) filtration C) osmosis D) endocytosis 29. The mechanism in which molecules or ions spread randomly from areas of higher concentration to areas of lower concentration is A) filtration B) osmosis C) exocytosis D) diffusion 30. Which of the following substances can diffuse readily through the cell membrane? A) sodium B) carbon dioxide C) glucose D) amino acids 31. Molecules such as glucose that are too large to pass through the membrane pores and are insoluble in lipids enter the cell from a high to low concentration using A) active transport B) filtration C) endocytosis D) facilitated diffusion 32. The substance that moves through the cell membrane during osmosis is A) glucose B) water C) sodium D) oxygen 33. Osmosis is a special case of A) filtration B) diffusion C) facilitated transport D) pinocytosis 34. When fluid is forced through a membrane by hydrostatic or blood pressure, the mechanism is called A) filtration B) facilitated diffusion C) controlled by electrically gated channels D) hormone mediated 35. In the process of exocytosis A) white blood cells remove bacteria from tissue B) fluid is brought into the cell C) substances are released by the cell when ATP levels are sufficient D) receptors determine if a substance will be taken into the cell 36. The process by which cells develop different characteristics in structure and function is called A) maturation B) replication C) hybridization D) differentiation 37. Which of the following is not a characteristic of cancer? A) hyperplasia B) differentiation C) metastasis D) invasiveness 38. Which of the following is not a function of bone? A) storage of inorganic salts B) provide shape, support, and protection to body structures C) contain the structures that produce red blood cells D) produce vitamin D cofactors 39. Which of the following elements is not normally found in bone? A) magnesium B) lead C) carbonate ions D) potassium 40. All of the following can reduce the risk of developing osteoporosis except A) performing weight-bearing exercise on a regular basis B) avoiding medications containing bisphosphonates C) consuming adequate daily amounts of calcium and vitamin D D) avoiding smoking 41. The finger and toe bones are called A) tarsals B) carpals C) patellae D) phalanges 42. Bending a joint so that the angle between the bones decreases is A) extension B) flexion C) dorsiflexion D) rotation 43. Choose the true statement regarding skeletal muscle cells. A) Another term for a skeletal muscle cell is myofibril. B) Each skeletal muscle cell has many nuclei and mitochondria. C) The muscle cell membrane is called the sarcoplasm. D) Skeletal muscle cells never extend the full length of a muscle. 44. The connective tissue that surrounds entire muscles is A) perimysium B) endomysium C) epimysium D) elastin 45. Choose the true statement regarding skeletal muscle cells. A) Another term for a skeletal muscle cell is muscle fiber. B) Each skeletal muscle cell has one nuclei and mitochondria. C) The muscle cell membrane is called the sarcoplasm. D) Skeletal muscle cells never extend the full length of a muscle. 46. During high intensity exercise, muscle fibers rely upon what process for energy? A) aerobic respiration B) increased metabolism of glucose C) anaerobic respiration D) increased blood supply 47. Muscle fatigue can be caused by all of the following except A) lowering of pH due to lactic acid build-up B) interruption of blood supply C) formation of a cramp D) lack of acetylcholine 48. Muscle tone refers to A) a state of sustained, partial contraction of muscles that is necessary to maintain posture B) a feeling of well-being following exercise C) the ability of a muscle to maintain contraction against an outside force D) the condition athletes attain after intensive training 49. The primary flexor of the forearm is the A) internal oblique B) biceps brachii C) biceps femoris D) triceps brachii 50. The shoulder muscle that abducts the upper arm and can both flex and extend the humerus is the A) biceps brachii B) deltoid C) infraspinatus D) supraspinatus