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Question: 1 when a bone is healing from a fracture which...

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1. When a bone is healing from a fracture, which of the following is happening? a osteoclasts are using calcium to form new bone b) bone marrow is incorporating calcium and becoming hardened c) osteoblasts are breaking down bone d) osteoblasts are forming new bone 2. Arteries carry? a) b) c) d) oxygen-poor blood blood toward the heart oxygen-rich blood blood away from the heart 3. If the hearts SA node were stop sending impulses to the AV node what would most likely occur? a) b) a heart attack an arrhythmia likely leading to cardiac arrest c) the AV node would take over as the pacemaker and the heart would function normally d) the valves of the heart would stay open 4. You just measure your blood pressure at 118/83. But, you are thirsty and drank a large 32 oz glass of water. Hon d you expect your blood pressure to respond? a) the kidneys would retain water to increase your blood pressure b) the pressure would go up c) the pressure would go down immediately after drinking water d) it would have no effect on blood pressure, the kidneys are a separate system 5. An enzyme? a) b) c) d) Is a fatty acid Is broken down in the process Increases the activation energy Is reusable 6. Wondering what is really in baked beans, I tested it and here are my results: Benedict test: Orange Iodine test: black Sudan IV test: red Biuret test: purple Baked beans must contain: a) starch, fat, and protein d) sugar, protein, and starch 7. Which of the following statements sugar and fat c) sugar, fat, and starch is true? Insulin is released by the gall bladder to breakdown fats b) Bile is released from the pancreas to break down starch c) Starches are absorbed in the stomach d) Amylase contained in the saliva breaks down starches 8. An abundant and continual supply of ATP is necessary for all living cells. Active muscle cells require an extraordina amount of ATP to permit strenuous exercise for prolonged periods. Toxins, reduced blood flow, and a compromised respiratory system can interfere with the transport of oxygen to active cells. A runner in a marathon faces multiple obstacles to continue to produce sufficient ATP to remain competitive. Breathing faster when we exercise allows us to? ry a) b) c) d) exchange more oxygen and carbon dioxide, to make more oxygen available for glycolysis exchange more oxygen and carbon dioxide, to make more oxygen available for the electron transport chain to help ATP make more energy to reduce excess oxygen levels 9. When muscles are asked to work at their maximum strength which of the following will occur: a) b) c) d) They will use lactic acid instead of glucose as an energy source They will signal the respiratory system to decrease respiratory rate They may switch to anaerobic respiration They require more carbon dioxide10. When recording blood pressure the larger top number is the systolic pressure. b) False 11. The Harvard step test is a way of calculating cardiovascular fitness b) False 12. Asthma effects the respiratory system in which way? a) b) c) d) by stopping the lungs ability to regulate pH by constricting the bronchioles by blocking gas exchange in the alevoli by blocking airflow through the larynx 13. A male measured his waist-to-hip ratio and calculated it to be 0.9. This indicates a) He is pear shaped b) He has a higher CV risk c) He has a lower CV risk d) He has a higher risk for Type 2 diabetes 14. Vaccinations expose the immune system to a weak form of a pathogen, this allows the immune system to a) produce memory B-cells which allows the body to quickly produce antibodies if exposed to the pathogen again. b) respond unpredictably and can cause autism. c) store extra lymphocytes. d) produce extra T-cells that will recognize and destroy all future pathogens. 15. What sort of neurons would carry information from your spinal cord to your muscles? a) motor neuron b) Intemeuron c) efferent neuron d) sensory neuron 16. In most American diets, which of the following tend to be over consumed? a) Iron b) Fiber c) Calcium Sugar 17. Which of the following is true of the microbiome of the human digestive system? a) it can change based on what you eat b) it is mostly made of disease causing pathogenic bacteria c) the stomach acid prevents any bacteria you consume from polluting the microbiome d) it can be killed by the MMR vaccine 18. A person with a damaged hypothalamus would most likely show which of the following: a) uncontrollable anger b) stumbling andor uncoordinated body movements c) increased hunger d) Paralysis e) memory loss 19. Which part of the brain controls basic bodily functions such as breathing and heart rate? a) cerebral cortex b) Hypothalamus c) Cerebellum d) Thalamus e) pons and medulla 20. If you do not eat for 12 hours, which of the following would be occurring to maintain homeostasis? a) your pancreas would be releasing insulin to trigger your liver to take glucose out of the blood stream and store it b) you could become diabetic c) your pancreas would be releasing glucagon, triggering the release of stored sugars from your liver d) the concentration of glucose in your blood stream would be high (hyperglycemia)21. Walking around without shoes, you step on a sharp rock. Quickly, and without thinking, you pick up your foot. Which of the following neurons would carry the pain signal to your brain? a) motor neuron b) interneuron c) efferent neuron d) sensory neuron 22. What has lead to greater number of measles outbreaks in recent years? a) b) c) d) new strains of measles have occurred that the vaccine is not effective against the MMR vaccine is no longer effective. lower rates of measles vaccination in the general population failure of people to properly wash their hands 23. Being exposed to environmental tobacco smoke (living or working with a smoker) a) Has little or no effect on your cardiovascular risk b) May cause your blood pressure to be low c) Increases your cardiovascular risk more than currently being a smoker d) May increase your cardiovascular risk as much as being a former smoker 24. BMI takes into account the overall % bodv fat a) True b) False 25. Which of the following lists the CORRECT order of passage of food through our digestive tract? a) mouth → esophagus → pharynx → stomach → small intestine → large intestine b) mouth - pharynx -» esophagus stomach-large intestinesmall intestine c) mouth- pharynx - esophagus -stomach -small intestine-large intestine d) mouth- esophagus pharynx -* stomach -large intestine-small intestine 26. I had a smoothie in my refrigerator and wanted to find out what was in it, I tested it and here are my results: Benedicts test: orange Iodine test black Sudan IV test: large red droplets Biuret test: blue It must contain: a) starch, sugar, and protein b) fats, sugars, protein, and starch c) fats, sugar, and starch d) fats, sugars, and protein e) fats and sugars 27. How would the kidneys react if blood pressure dropped from 120/80 to 100/60? a) by shutting down. b) by excreting salts into the urine c) d) by removing excess water as urine by conserving as much water as possible 28. If the hearts SA node were stop sending impulses to the AV node what would most likely occur a) the valves of the heart would stay open b) the AV node would take over as the pacemaker and the heart would function normally c) a heart attack d) an arrhythmia likely leading to cardiac arrest 29. Veins carry a) oxygen-rich blood b) blood toward the heart c) blood away from the heart d) oxygen-poor blood30. If a person does not have enough biologically available calcium in their diet, which of the following is most likely happening a too much high impact exercise, such as rumning on hard ground has weakened the bones b) osteoblasts are breaking down bone c) not consuming enough iron and calcium has caused the bones to stop producing red bloods cells and become weak d) osteoclasts are breaking dowm bone faster than osteoblasts are creating 31. In person with Type II diabetes, which is the most likely way the body will respond after consuming a sugary snack: a) b) c) d) glucagon is released, blood glucose levels continue to increase no insulin is released, blood glucose levels remain high insulin is released and blood glucose levels return to normal insulin will be released, blood glucose levels remain high 32. When considering the microbiome, which of the following could have negative effects on it? a having furry pets b) breast feeding infants c) overuse of sanitizers in homes of young children d) consuming a variety of foods

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