DP Biology Questionbank
D.4 The heart
Description
| Nature of science: Developments in scientific research followed improvements in apparatus or instrumentation—the invention of the stethoscope led to improved knowledge of the workings of the heart. (1.8) |
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Understandings:
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Theory of knowledge:
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Directly related questions
- 17N.3.HL.TZ0.22c: State an early invention that led to improved knowledge of the heart.
- 17N.3.HL.TZ0.22b: Describe the unique properties of cardiac muscle cells.
- 17N.3.HL.TZ0.22a: Identify the structure labelled X.
- 17N.3.SL.TZ0.16c: Outline reasons for fitting an artificial cardiac pacemaker.
- 17N.3.SL.TZ0.16b: Explain the events that cause the sound shown on the phonocardiogram at the start of systole.
- 17N.3.SL.TZ0.16a: State the relationship between pressure and volume in the left ventricle.
- 17M.3.HL.TZ2.19b.iii: Severe hypokalemia can lead to ventricular fibrillation. Describe the medical response to...
- 17M.3.HL.TZ2.19b.ii: Outline the events that occur within the heart that correspond to the QRS complex.
- 17M.3.HL.TZ2.19b.i: Distinguish between the ECG trace of the patient with hypokalemia and the patient with hyperkalemia.
- 17M.3.HL.TZ1.21b.ii: Explain how the increase in CO2 concentration affects the release of oxygen to respiring cells.
- 17M.3.HL.TZ1.19c: Explain the reason for the delay between contractions of the atria and of the ventricles.
- 17M.3.HL.TZ1.19b: Describe how the structure of cardiac muscle cells allows them to transmit impulses.
- 17M.3.HL.TZ1.19a: Samples from cardiac muscle were taken during autopsies from individuals who had coronary heart...
- 17M.3.SL.TZ2.21c: The photomicrograph shows cardiac muscle. Label the structures I and II.
- 17M.3.SL.TZ2.21b: Explain the meaning of systolic and diastolic pressure.
- 17M.3.SL.TZ2.21a: The diagram shows the use of a sphygmomanometer in the measurement of blood pressure. Identify...
- 17M.3.SL.TZ1.20c: Outline the use of artificial pacemakers for patients with a heart condition.
- 17M.3.SL.TZ1.20b: State what is represented by the period between the points R and R’.
- 17M.3.SL.TZ1.20a: Using the letters provided, identify the parts of the ECG where the ventricle muscles are...
- 17M.1.SL.TZ1.10: The graph shows the effect of increasing the substrate concentration on the rate of an...
- 16N.3.HL.TZ0.22c: Explain why the QRS wave has a larger amplitude than a P wave.
- 16N.3.HL.TZ0.22b: Describe the electrical activity that occurs in the heart during the P wave.
- 16N.3.HL.TZ0.22a: Using the R–R interval in this ECG, calculate the heart beats per minute (bpm) of this patient....
- 16N.3.SL.TZ0.15c: State the two causes of normal heart sounds.
- 16N.3.SL.TZ0.15b: Suggest a reason for the difference in QT interval between females with anorexia nervosa and...
- 16N.3.SL.TZ0.15a: Outline the reasons that the female patients with anorexia nervosa have a lower mean ventricle...
- 16M.3.HL.TZ0.21c: During cardiac arrest, the ventricles of the heart might begin to contract in an uncoordinated...
- 16M.3.HL.TZ0.21b: Heart rate is affected by the hormone epinephrine. The action of epinephrine is mediated by a...
- 16M.3.HL.TZ0.21a: The diagram shows an ECG trace with the QRS complex indicated. Outline the events of the...
- 16M.3.SL.TZ0.20b: Explain how electrical signalling in the heart leads to ventricular contraction
- 16M.3.SL.TZ0.20a: The incidence of coronary heart disease (CHD) was investigated among 14 000 people. Baseline...
- 15N.3.HL.TZ0.13b: Calculate the increase in risk over the control group for a woman of 60–64 of developing CHD if...
- 15N.3.HL.TZ0.13c: Compare the results for the men and the women.
- 15N.3.HL.TZ0.13d: Suggest two reasons why a man is more likely to develop CHD if his brother had the disease.
- 15N.3.HL.TZ0.13a: State the risk of a man developing CHD between the ages of 55–59 if his brother had CHD.
- 13M.3.HL.TZ2.15: Explain the events of the cardiac cycle, including the heart sounds.
- 11M.3.HL.TZ1.14a: Outline how coronary thrombosis can be caused.
- 12M.3.HL.TZ1.14a: In healthy adults, there are heart sounds during the cardiac cycle. Outline the causes of two of...
- 12M.3.HL.TZ2.13c: Using the data, deduce whether the incidence of CHF or the incidence of anemia has a greater...
- 12M.3.HL.TZ2.13d: Iron is necessary for hemoglobin to carry oxygen so low iron levels cause low levels of...
- 12M.3.HL.TZ2.13b: Calculate the difference in median blood hepcidin concentration for CHF patients with anemia and...
- 12M.3.HL.TZ2.13a: State which group has the greatest range of blood hepcidin concentration.
- 10M.3.HL.TZ1.15: Explain the role of the SA (sinoatrial) node in the cardiac cycle.
- 12N.3.SL.TZ0.4a: Estimate, using the graph, the resting heart rate of the physically fit rower.
- 12N.3.SL.TZ0.4b (i): Estimate, using the graph, the increase in heart rate between exercise at 25 watts and 250 watts....
- 12N.3.SL.TZ0.4b (ii): Predict, with a reason, whether the increase would be greater or less in an untrained person when...
- 10N.3.HL.TZ0.13a: State the overall trend for CRP for men and women over the range of alcohol consumption.
- 10N.3.HL.TZ0.13b: Evaluate, using all the data, whether drinking small amounts of alcohol reduces the risk of CVD.
- 10N.3.HL.TZ0.13c: Deduce which is the best marker to measure the risk of CVD.
- 10N.3.HL.TZ0.13d: Outline atherosclerosis and the causes of CVD.
