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
Cell theory wikipedia , lookup
Neuronal lineage marker wikipedia , lookup
Adoptive cell transfer wikipedia , lookup
Hematopoietic stem cell wikipedia , lookup
Human embryogenesis wikipedia , lookup
Developmental biology wikipedia , lookup
Human genetic resistance to malaria wikipedia , lookup
Homeostasis Practice Test Name: 1. Date: Which statement explains the importance of maintaining a constant internal environment to ensure proper enzyme functioning? A. Changes in pH and temperature will cause the enzyme reaction rate to be too fast. B. Temperature and pH determine amino acid sequences in enzymes. C. Changes in pH will change the genetic instructions of enzymes. D. Increasing the temperature and pH can alter the speci c shape of enzymes. 4. Base your answers to the following question(s) on the information and data table below and on your knowledge of biology. Five students design an experiment to answer the question: “How is heart rate a ected by running?” Two chairs were set up at di erent ends of a large room. The pulse rate of each student was taken at rest just before running. Each of the ve students ran between the chairs a di erent number of times. Their pulse rates were taken after running and the results are shown in the table below. E ect of Running on the Heart Student 2. Breathing rate is constantly being monitored and adjusted in the human body, which results in A. the di erentiation of mature body cells B. feedback mechanisms removing damaged cells C. modi cation of gene activity in cells D. the internal environment being kept within certain limits Number of Times the Student Pulse Rate After Running Ran Between the Chairs (beats/min) A 2 B 4 88 96 C 6 104 D 8 112 E 10 120 Explain how the change in heart rate helps to maintain homeostasis during exercise. 5. The disease known as malaria may result in a fever, a decrease in red blood cells, and an enlarged liver and spleen. These symptoms are evidence of A. a disruption of homeostasis 3. The diagram below represents an activity that occurs in the human body. B. a decrease in allergic reactions C. an increased number of cell organelles D. hormone destruction This diagram best illustrates A. active transport B. maintenance of homeostasis C. synthesis of nutrients D. di erentiation page 1 6. Base your answer to the following question(s) on the information below and on your knowledge of biology. 9. The accompanying diagram represents the actions of two hormones in the human body. An investigation is carried out to determine the e ect of exercise on the rate at which a person can squeeze a clothespin. Muscle fatigue occurs during this activity when A. carbon dioxide is used up in the muscle cells This diagram best illustrates B. simple sugar is converted to starch in the muscle cells A. recombination C. insertion B. feedback D. deletion C. proteins accumulate in mitochondria in the muscle cells D. certain waste products collect in the muscle cells 7. 10. The graph below shows the levels of glucose and insulin in the blood of a human over a period of time. The most immediate response to a high level of blood sugar in a human is an increase in the A. muscle activity in the arms B. blood ow to the digestive tract C. activity of all cell organelles D. release of insulin This graph represents 11. A. an allergic reaction What will most likely happen to wastes containing nitrogen produced as a result of the breakdown of amino acids within liver cells of a mammal? B. an antigen-antibody reaction A. They will be digested by enzymes in the stomach. C. maintenance of homeostasis D. autotrophic nutrition 8. B. They will be removed by the excretory system. Which phrase does not describe a way the human body responds to ght disease? C. They will be destroyed by specialized blood cells. D. They will be absorbed by mitochondria in nearby cells. A. destruction of infectious agents by white blood cells B. production of antibodies by white blood cells C. increased production of white blood cells D. production of pathogens by white blood cells page 2 Homeostasis Practice Test 12. Which situation indicates that a disruption of homeostasis has taken place? 15. Which is an example of an e ector? A. a taste bud of the tongue A. the presence of hormones that keep the blood sugar level steady B. the auditory nerve of the ear C. the retina of the eye B. the maintenance of a constant body temperature D. a muscle of the arm C. cell division that is involved in normal growth 16. D. a rapid rise in the number of red blood cells organs in multicellular organisms Select the process, chosen from the list below, that is best described by the statement shown. Results in muscle fatigue and cramping in humans 13. Which order of metabolic processes converts nutrients consumed by an organism into cell parts? A. photosynthesis B. alcoholic fermentation A. digestion ! absorption ! circulation ! di usion ! synthesis C. aerobic respiration D. lactic acid fermentation B. absorption ! circulation ! digestion ! di usion ! synthesis 17. C. digestion ! synthesis ! di usion ! circulation ! absorption D. synthesis ! absorption ! digestion ! di usion ! circulation 14. What is the role of sensory organs in the body? 18. A. the transmission of impulses directly to e ectors B. the detection of environmental stimuli Nerve impulses are carried from the spinal cord to the muscles of the arm by A. sensory neurons C. motor neurons B. tendons D. ganglia The skeleton of the human embryo is made up primarily of A. bone C. cartilage B. muscle D. epithelium C. the conduction of impulses from the spinal cord D. the interpretation of impulses from motor neurons page 3 Homeostasis Practice Test Achoo! Most sneezing bouts are caused by nasal irritation. Viruses, bacteria, and inhaled irritants such as pepper, dust, and pollen are common causes. In some people, looking at a bright light can cause sneezing; this is known as the photic response. Sneezing usually begins when receptors in the interior of the nose are stimulated. A message is carried by a nerve to a reaction of the midbrain which in turn, stimulates blood vessels to dilate and mucous glands to increase their activity. Other impulses go to the respiratory center in the medulla, causing it to stimulate inhalation. As soon as inhalation is complete, muscles encircling the top of the airway of the victim temporarily constrict. The nose and mouth are momentarily sealed o from the rest of the respiratory passages. Then the process of exhalation begins. As the diaphragm and abdominal muscles contract, pressure builds until the seal is forced open and air explodes out in a sneeze. A sneeze that originates with an irritation of the nose can be explained by this process, but in the case of a sneeze caused by a bright light, unidenti ed portions of the brain seem to be involved in producing the photic response. This response appears to be inherited and is present in approximately 20% of the population. page 4 Homeostasis Practice Test 19. Irritation of the nasal passages rst results in 23. A. a forceful exhalation of air through the mouth A. production of gastric juices B. rapid inhalation and exhalation B. production of saliva C. irregular contraction and relaxation of the diaphragm C. storage of pancreatic juices D. storage of bile D. dilation of blood vessels and increased production of mucus 24. 20. The removal of a human gallbladder interferes most directly with the The impulses involved in sneezing would most likely follow which pathway Into which parts of the human digestive system are digestive enzymes secreted? A. mouth, esophagus, stomach A. motor neuron ! interneuron ! sensory neuron B. stomach, small intestine, large intestine C. mouth, stomach, small intestine B. motor neuron ! sensory neuron ! interneuron D. esophagus, stomach, large intestine C. sensory neuron ! interneuron ! motor neuron 25. D. sensory neuron ! motor neuron ! interneuron In humans, the large intestine is the major site for the A. completion of lipid digestion 21. Which part of the human central nervous system is correctly paired with its function? B. absorption of water into the bloodstream C. completion of carbohydrate digestion A. spinal cord - coordinates learning activities D. storage of nutrients for future use B. cerebellum - serves as the center for re ex actions 26. C. cerebrum - serves as the center for memory and reasoning D. medulla - maintains muscular coordination 22. Which two structures are directly involved in locomotion in humans? 27. A. visceral muscle and brous tendons B. smooth muscle and ligaments In the human digestive system, most nutrients are absorbed into the blood through the lining of the A. esophagus C. small intestine B. stomach D. large intestine In a human, peristalsis occurs in which organs? A. salivary gland, esophagus, and stomach C. skeletal muscle and bones B. stomach, small intestine, and pancreas D. cardiac muscle and immovable joints C. esophagus, stomach, and small intestine D. esophagus, small intestine, and liver page 5 Homeostasis Practice Test 28. Which part of human blood is primarily responsible for transporting nutrients, hormones, and wastes? 33. The breathing rate of a human is regulated by the A. concentration of nitrogen in the lungs A. red blood cell C. white blood cell B. plasma D. platelet B. pressure of the air in the trachea C. concentration of carbon dioxide in the blood 29. In humans, a function of intercellular uid is to D. pressure of the blood in the capillaries A. produce red blood cells 34. B. serve as a transport medium 30. Which is a characteristic of lymph nodes? C. produce white blood cells A. They carry blood under great pressure. D. serve as a lter for uric acid B. They move uids by means of a muscular pump. In humans, red bone marrow provides C. They produce new red blood cells. D. They contain phagocytic cells. A. structural support for the body B. a source of new blood cells 35. An example of a human response is C. an attachment site for muscle tissue A. a stone approaching the eye D. a site to trap bacteria B. the buzz of a bee 31. 32. C. the fragrance of a rose Filtering dust particles out of the human respiratory tract is a function of the A. cilia C. epiglottis B. bronchioles D. alveoli D. the secretion of a hormone In humans, the exchange of respiratory gases occurs within the A. nose C. bronchial tubes B. trachea D. alveoli page 6 Homeostasis Practice Test Problem-Attic format version 4.4.266 c 2011–2015 EducAide Software _ Licensed for use by Adrienne Crouch Terms of Use at www.problem-attic.com Homeostasis Practice Test 05/09/2016 1. Answer: D 18. Answer: C 2. Answer: D 19. Answer: D 3. Answer: B 20. Answer: C 21. Answer: C 22. Answer: C 23. Answer: D 24. Answer: C 4. Answer: – The heart rate increases, which transports more oxygen from the lungs to the muscle cells. – The heart beats faster and transports carbon dioxide to the lungs faster for elimination. – Increased heart rate removes wastes from cells more rapidly. 5. Answer: A 25. Answer: B 6. Answer: D 26. Answer: C 7. Answer: C 27. Answer: C 8. Answer: D 28. Answer: B 9. Answer: B 29. Answer: B 10. Answer: D 30. Answer: B 11. Answer: B 31. Answer: A 12. Answer: D 32. Answer: D 13. Answer: A 33. Answer: C 14. Answer: B 34. Answer: D 15. Answer: D 35. Answer: D 16. Answer: D 17. Answer: C