| Date | November 2014 | Marks available | 1 | Reference code | 14N.1.HL.TZ0.24 |
| Level | Higher level | Paper | Paper 1 | Time zone | TZ0 |
| Command term | Question number | 24 | Adapted from | N/A |
Question
How has the transmission of HIV been reduced?
A. Delaying the progression of HIV to AIDS
B. Single use of disposable needles
C. Treatment with antibiotics
D. Vaccination
Markscheme
B
Examiners report
[N/A]
Syllabus sections
Additional higher level » Topic 8: Metabolism, cell respiration and photosynthesis » 8.2 Cell respiration
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- 17N.1.HL.TZ0.29: Which reaction does not cause a net release of energy? A. ADP combines with inorganic...
- 17M.2.HL.TZ2.2b.ii: Describe its function.
- 17M.2.HL.TZ2.2b.i: Describe its location.
- 17M.2.HL.TZ1.5a: Explain how chemical energy for use in the cell is generated by electron transport and...
- 17M.1.HL.TZ2.14: This reaction occurs in mitochondria. What explains that this reaction enables energy to...
- 17M.1.HL.TZ1.29: The diagram shows a mitochondrion. Which letter indicates the structure where ATP synthase is...
- 17M.1.SL.TZ1.1: Which structure found in eukaryotes has a single membrane? A. Nucleus B. Lysosome C....
- 16N.3.SL.TZ0.9a: Outline how a gene gun inserts genes into plants.
- 16M.2.HL.TZ0.4c: Mitochondria are thought to have evolved from prokaryotic cells. Describe two adaptations of...
- 16N.1.HL.TZ0.30: Which process requires oxygen in aerobic cell respiration? A. Oxidation of triose...
- 16M.1.HL.TZ0.10: The diagram represents the Krebs cycle. What processes are occurring at I and II?
- 15M.1.HL.TZ1.28: Where in a eukaryotic cell does the Krebs cycle take place?A. In the cytoplasmB. Between the...
- 15M.3.SL.TZ1.8a: Draw a labelled diagram of the structure of a mitochondrion as seen under the electron...
- 15M.3.SL.TZ1.8b: Explain how the structure of a mitochondrion is related to its function.
- 15N.1.HL.TZ0.28: From which substrate is the first carbon dioxide molecule released during cellular...
- 15N.2.HL.TZ0.3c(i): One of the stages of aerobic respiration is called the link reaction. Label the diagram to...
- 15N.2.HL.TZ0.3c(ii): Outline the role of coenzyme A in aerobic respiration.
- 15N.3.SL.TZ0.9b: Explain how energy is released and used to make ATP by electron carriers in the electron...
- 13M.2.HL.TZ1.8a: Draw a labelled diagram of a mitochondrion as seen in an electron micrograph.
- 13M.1.HL.TZ2.29: When is energy released in a cell? A. ADP combines with inorganic phosphate.B. ATP releases...
- 13N.1.HL.TZ0.30: What happens during oxidative decarboxylation of pyruvate?A. Reduction of NAD+ and oxidation...
- 13N.2.HL.TZ0.8b: The protein hemoglobin transports oxygen to cells. Describe the processes that occur in the...
- 13M.3.SL.TZ2.5c: Explain the role of ATP in muscle contraction.
- 13M.3.SL.TZ2.8c: Describe how the link reaction and the Krebs cycle are related.
- 13M.3.SL.TZ2.9b: State two products of glycolysis. 1. ...
- 13M.3.SL.TZ2.9c: Explain the role of cristae in mitochondria.
- 13M.3.SL.TZ2.5b: Outline ATP production in muscle fibres during intense exercise.
- 13N.3.SL.TZ0.8b: The diagram shows chemiosmosis in the mitochondrion. Label I, II and III.
- 13N.3.SL.TZ0.6a.ii: Outline which methods of ATP production are used in muscle fibres during different...
- 11M.1.HL.TZ1.29: The electron micrograph below shows an organelle in a eukaryotic cell. What is the area...
- 11M.2.HL.TZ2.1f: Suggest one reason why the results differ for single mice and group mice.
- 11M.2.HL.TZ2.1a: Calculate how many minutes the group mice are active between 21:00 and 00:00 at 8°C.
- 11M.2.HL.TZ2.1d: State the relationship between temperature and metabolic rate.
- 11M.2.HL.TZ2.1g: Explain why oxygen consumption is used as a measure of metabolic rate.
- 11M.2.HL.TZ2.1b: Outline the relationship between activity and temperature from 21:00 to 03:00 in all of the...
- 11M.2.HL.TZ2.1c: Animals which are active at night are nocturnal. Suggest one advantage for mice being nocturnal.
- 11M.2.HL.TZ2.1e: Compare the results for the single mice at 15°C with those for the group mice at 15°C.
- 11M.2.HL.TZ2.1h: Using the data from both graphs, evaluate the hypothesis that increased activity causes an...
- 11M.3.SL.TZ1.9b: Explain how the structure of a mitochondrion is adapted for its function.
- 11M.3.SL.TZ1.9a: Draw a labelled diagram of a mitochondrion.
- 11M.3.SL.TZ2.9: Explain the link reaction that occurs between glycolysis and the Krebs cycle.
- 12M.1.HL.TZ1.28: What is the total number of ATP molecules used and produced during glycolysis?
- 12M.1.HL.TZ1.29: Where precisely in the cell do the reactions of the Krebs cycle take place? A. In the...
- 12M.1.HL.TZ2.28: What occurs during oxidative phosphorylation? A. ATP production using electrons from NADP B....
- 12M.3.SL.TZ1.8b: Outline the process of glycolysis.
- 12M.3.SL.TZ1.8a: Distinguish between oxidation and reduction.
- 12M.3.SL.TZ2.9a: Label the following micrograph of a mitochondrion.
- 12M.3.SL.TZ2.9b: Explain how oxidative phosphorylation occurs by means of chemiosmosis.
- 09M.1.HL.TZ1.28: In the mitochondrial electron transport chain, what is the last electron acceptor? A. CO2 B....
- 09M.1.HL.TZ1.27: Where is carbon dioxide produced in the mitochondrion?
- 10M.2.HL.TZ1.1e (ii): State the highest temperature shown on the graph.
- 10M.2.HL.TZ1.1a (ii): Suggest two reasons for the relationship.
- 10M.2.HL.TZ1.1e (i): State the highest carbon dioxide concentration shown on the graph.
- 10M.2.HL.TZ1.1g: Using the data in this question, explain reasons for concern about the long-term survival of...
- 10M.2.HL.TZ1.1a (i): Outline the relationship between temperature and oxygen concentration in the body fluids in...
- 10M.2.HL.TZ1.1b: In its natural environment, Laternula elliptica buries itself in the mud on the sea bed. In...
- 10M.2.HL.TZ1.1c (i): Describe the trends in atmospheric carbon dioxide concentration, shown in the graph.
- 10M.2.HL.TZ1.1c (ii): Suggest two reasons for the trends that you have described.
- 10M.2.HL.TZ1.1d (i): Diffusion of carbon dioxide only occurs when there is a concentration gradient. Deduce the...
- 10M.2.HL.TZ1.1d (ii): The graph provides evidence for the hypothesis that there will be no net diffusion of carbon...
- 10M.2.HL.TZ1.1f: Using the data in the graph, deduce the relationship between atmospheric carbon dioxide...
- 10M.2.HL.TZ2.6a: Outline the process of glycolysis.
- 10M.1.HL.TZ1.29: During glycolysis a hexose sugar is broken down to two pyruvate molecules. What is the...
- 10M.1.HL.TZ2.28: What is the link reaction in aerobic respiration? A. Pyruvate is carboxylated, acetyl reacts...
- 10M.1.HL.TZ2.29: What is chemiosmosis? A. Coupling of ATP synthesis to the electron transport and proton...
- 10M.3.SL.TZ1.11b: State precisely where in a cell this stage of respiration is occurring.
- 10M.3.SL.TZ1.11a (i): Label pyruvate and acetyl coenzyme A on the diagram above.
- 10M.3.SL.TZ1.11a (iii): List one product other than carbon dioxide formed in this stage of respiration.
- 10M.3.SL.TZ1.11a (ii): Indicate two places where decarboxylation occurs on the diagram.
- 10M.3.SL.TZ2.8b: Explain the relationship between the structure of the mitochondrion and its function.
- 10M.3.SL.TZ2.8a: Draw a labelled diagram showing the structure of a mitochondrion as seen in electron...
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- 14N.1.HL.TZ0.17: If both parents are heterozygous for sickle-cell anemia ( HbA HbS ), what percentage of their...
- 09N.1.HL.TZ0.27: What is the role of NADH + H+ in aerobic cell respiration?A. To transfer hydrogen to the...
- 11N.1.HL.TZ0.13: What happens for each glucose during glycolysis? A. Four ATP are used. B. Two three-carbon...
- 11N.3.SL.TZ0.7a: Using the graph, measure the amount of ATP produced by oxidative phosphorylation, giving the...
- 12N.2.HL.TZ0.6c: In anaerobic conditions, plants release energy by glycolysis. Outline the process of glycolysis.
- 11N.3.SL.TZ0.7b: Compare the changes in oxygen and lactate content in the blood when a resting rattlesnake...
- 11N.3.SL.TZ0.7c: Using the data, deduce, with reasons, whether anaerobic respiration provides some or all of...
- 12N.1.HL.TZ0.30: In the following diagram of a metabolic pathway, which letter represents acetyl CoA?
- 12N.1.HL.TZ0.29: The diagram represents components of the cristae in mitochondria. Which arrow indicates how...
- 12N.3.SL.TZ0.9a: Draw a labelled diagram showing the structure of a mitochondrion as seen under an electron...
- 12N.3.SL.TZ0.9b: Explain the relationship between the structure of the mitochondrion and its function.
- 10N.2.HL.TZ0.7c: Explain the process of aerobic cell respiration after glycolysis has occurred.
- 10N.3.SL.TZ0.8a(ii): Explain H+ movement in mitochondria and its significance for chemiosmosis.
- 10N.3.SL.TZ0.8a(i): State two products of glycolysis.
- 09N.2.HL.TZ0.4c: Explain how chemiosmosis assists in ATP production during oxidative phosphorylation.
- 09N.3.SL.TZ0.9a: State the location of high proton concentration caused by electron transport in the...
- 09N.3.SL.TZ0.9c: Explain how any two structural features of the mitochondrion are related to its function.
