DP Biology Questionbank

Description

Overview of the essential ideas for this topic.

8.1: Metabolic reactions are regulated in response to the cell’s needs.

8.2:Energy is converted to a usable form in cell respiration.

8.3: Light energy is converted into chemical energy.

Directly related questions

• 15M.1.HL.TZ1.29: What process occurs during the light-independent reactions of photosynthesis?A. Oxygen is...
• 15M.3.SL.TZ2.9b: Compare competitive and non-competitive enzyme inhibition
• 13M.2.HL.TZ1.8a: Draw a labelled diagram of a mitochondrion as seen in an electron micrograph.
• 13M.2.HL.TZ2.1a: Describe the overall trend in body fat accumulation for the four groups of mice.
• 13M.2.HL.TZ2.1e: Discuss whether the results provide clear evidence of a difference in uptake.
• 13M.2.HL.TZ2.7c: Some of the water carried to the leaves of a plant is used in photosynthesis. Explain the role of...
• 11M.1.HL.TZ1.30: Where is chlorophyll found in a plant cell? A. Thylakoid membranes B. Stroma C. Matrix D....
• 11M.1.HL.TZ1.29: The electron micrograph below shows an organelle in a eukaryotic cell. What is the area labelled...
• 11M.3.SL.TZ1.7a: State the carbon dioxide concentration at pH 7.2.
• 12M.1.HL.TZ1.30: What occurs during the light-independent reactions of photosynthesis? A. ATP is produced. B....
• 09M.2.HL.TZ1.6c: Outline how enzymes catalyse reactions.
• 10M.2.HL.TZ1.1a (ii): Suggest two reasons for the relationship.
• 10M.3.SL.TZ1.9a (ii): Explain the reasons for maximum carbon dioxide exchange rate at this time.
• 10M.3.SL.TZ1.11a (ii): Indicate two places where decarboxylation occurs on the diagram.
• 11N.1.HL.TZ0.14: Which of the following is a role of ATP in photosynthesis? A. It provides the energy to make...
• 11N.3.SL.TZ0.7a: Using the graph, measure the amount of ATP produced by oxidative phosphorylation, giving the units.
• 12N.3.SL.TZ0.7c: Compare the data for the sour orange trees growing at 400 ppm with those growing at 700 ppm.
• 10N.3.SL.TZ0.7c: Explain why the activity of the enzyme from wild-type plants changes when the inhibitor is added.
• 10N.2.HL.TZ0.7c: Explain the process of aerobic cell respiration after glycolysis has occurred.
• 15N.1.HL.TZ0.10: Once the leaves have been picked, all further metabolism must be stopped. By what means could...
• 13N.1.HL.TZ0.31: Where is ATP synthase located?  
• 13N.2.HL.TZ0.8b: The protein hemoglobin transports oxygen to cells. Describe the processes that occur in the...
• 13N.3.SL.TZ0.7c: Identify, with a reason, which of the peptides is the most effective inhibitor of triose...
• 13N.3.SL.TZ0.9a: State the site of the light-independent reactions of photosynthesis.
• 09N.1.HL.TZ0.26: The graph below shows energy changes during a chemical reaction that occurs without a catalyst....
• 16M.1.HL.TZ0.12: Which molecule would first contain 14C if the alga Chlorella was grown in the presence of light...
• 16M.1.HL.TZ0.9: In one of the curves in the graph, the rate of an enzyme-catalysed reaction has been plotted...
• 16N.2.HL.TZ0.3a: Identify the following processes as either anabolism or catabolism by placing a tick (√) in the...
• 15M.1.HL.TZ1.26: Which describes the role of amino acids in the channels of membrane proteins used for facilitated...
• 13M.2.HL.TZ1.1b: Suggest why heat treatment may reduce photosynthesis rates.
• 13M.2.HL.TZ1.5c: Explain the light-independent processes of photosynthesis in plants.
• 13M.1.HL.TZ1.30: In the light-dependent reactions of photosynthesis what supplies low energy electrons to ...
• 13M.3.SL.TZ1.7b: State the percentage value of total leaf nitrogen in chlorophyll for Spinacia at low light...
• 11M.3.SL.TZ1.9b: Explain how the structure of a mitochondrion is adapted for its function.
• 12M.1.HL.TZ1.26: A substrate undergoes a series of enzyme-catalysed reactions to form intermediate substances X, Y...
• 12M.1.HL.TZ1.27: What effect would adding an enzyme have on energy changes during the reaction? A. Reduce...
• 12M.1.HL.TZ1.29: Where precisely in the cell do the reactions of the Krebs cycle take place? A. In the cytoplasm...
• 09M.2.HL.TZ1.4a: Draw a labelled diagram of the structure of a chloroplast as seen with an electron microscope.
• 09M.1.HL.TZ1.28: In the mitochondrial electron transport chain, what is the last electron acceptor? A. CO2 B. H2O...
• 10M.2.HL.TZ1.1a (i): Outline the relationship between temperature and oxygen concentration in the body fluids in...
• 10M.1.HL.TZ2.29: What is chemiosmosis? A. Coupling of ATP synthesis to the electron transport and proton movement...
• 10M.3.SL.TZ1.9a (i): State the time at which carbon dioxide exchange rate is maximal.
• 12N.1.HL.TZ0.29: The diagram represents components of the cristae in mitochondria.  Which arrow indicates how...
• 12N.1.HL.TZ0.25: The following graph shows energy changes with and without enzymes during a chemical reaction. ...
• 12N.3.SL.TZ0.7d: Identify, with a reason, whether CO2 concentration or temperature is the limiting factor on...
• 10N.3.SL.TZ0.7d: The scientists concluded that the enzymes of the mutant plants had a reduced activity, but were...
• 09N.3.SL.TZ0.9a: State the location of high proton concentration caused by electron transport in the mitochondrion.
• 15N.2.HL.TZ0.1g: Describe the relationship between the distance of upstream migration and the concentration of...
• 15N.3.SL.TZ0.7c: Compare the effect of rehydration on chlorophyll levels in plants grown in shade and sunlight.
• 15N.3.SL.TZ0.7d: Using the data, deduce, with a reason, two stages of photosynthesis that may be limited during...
• 13N.3.SL.TZ0.7a: State the remaining activity of triose phosphate isomerase when...
• 16M.1.HL.TZ0.10: The diagram represents the Krebs cycle.   What processes are occurring at I and II?
• 16M.2.HL.TZ0.4c: Mitochondria are thought to have evolved from prokaryotic cells. Describe two adaptations of the...
• 16N.1.HL.TZ0.29: The graph shows an example of an enzyme-catalysed reaction. What does the curve labelled X...
• 16N.3.SL.TZ0.9a: Outline how a gene gun inserts genes into plants.    
• 17M.2.HL.TZ1.5a: Explain how chemical energy for use in the cell is generated by electron transport and chemiosmosis.
• 17M.2.HL.TZ2.2a: The sketch shows the relationship between the reaction rate and substrate concentration in the...
• 17N.1.HL.TZ0.29: Which reaction does not cause a net release of energy? A. ADP combines with inorganic phosphate...
• 17N.1.HL.TZ0.31: The image shows a portion of a cell containing a mitochondrion. [Source: ‘TEM of a...
• 15M.2.HL.TZ2.7a: Explain chemiosmosis as it occurs in photophosphorylation.
• 15M.2.HL.TZ1.2b (iii): This protein is described as a globular protein. Distinguish between globular and fibrous...
• 15M.2.HL.TZ1.7c:  Outline two factors that affect the rate of photosynthesis.
• 15M.3.SL.TZ1.9b: The enzyme hexokinase catalyses the reaction between glucose and ATP to form Glucose –6–...
• 13M.2.HL.TZ1.1a: Suggest one method other than measuring CO2 uptake by which the rate of photosynthesis could have...
• 13M.2.HL.TZ1.1j: Explain the evidence provided by the data in the bar chart for the hypothesis that isoprene...
• 13M.2.HL.TZ2.1d: This study also showed a significant reduction in insulin sensitivity when participants were...
• 13M.3.SL.TZ1.7d: Evaluate the hypothesis that lower light intensity increases thylakoid nitrogen.
• 11M.3.SL.TZ2.8b: Outline the differences between competitive and non-competitive inhibitors.
• 12M.1.HL.TZ2.27: How does a competitive inhibitor interact with an enzyme? A. It binds to the active site,...
• 10M.2.HL.TZ1.1g: Using the data in this question, explain reasons for concern about the long-term survival of...
• 10M.2.HL.TZ1.1f: 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.TZ1.30: Where are the light-dependent and light-independent reactions taking place in the diagram below?
• 10M.1.HL.TZ1.10: Which of the following factors influence(s) the rate of oxygen production in photosynthesis? I....
• 10M.3.SL.TZ1.9b: State the temperature that resulted in the highest rate of photosynthesis under current...
• 11N.1.HL.TZ0.15: What happens to triose phosphate (TP) in the light-independent reactions of photosynthesis? A....
• 12N.1.HL.TZ0.26: The diagram represents an allosteric enzyme. Where would the following inhibitors be most likely...
• 10N.3.SL.TZ0.8b: State two limiting factors of photosynthesis.
• 09N.3.SL.TZ0.7d: Using the graph, predict the effect of high salt concentration on the growth of Chlorella...
• 15N.3.SL.TZ0.7b: Outline the effect of sunlight and shade on CO2 assimilation during dehydration.
• 14N.1.HL.TZ0.25: What is the difference between movement of the knee joint and hip joint?A. The knee only allows...
• 17M.1.HL.TZ2.13: Which technological advance enabled Calvin to perform his lollipop experiment on the...
• 17M.2.HL.TZ2.2b.i: Describe its location.
• 17M.2.HL.TZ2.2b.ii: Describe its function.
• 17N.1.HL.TZ0.30: Which process occurs during the light-dependent reaction of photosynthesis? A. ATP, CO2 and H2O...
• 15M.2.HL.TZ1.7b: The light-dependent reactions in photosynthesis take place on the thylakoid membranes. Explain...
• 13M.2.HL.TZ1.1k: Suggest two reasons for some plant species synthesizing and emitting isoprene, but not other...
• 13M.2.HL.TZ2.1f: Determine which sugar is primarily used in the production of ribose.
• 13M.2.HL.TZ2.1b: Compare the body fat accumulation between the four groups.
• 13M.2.HL.TZ2.1c: Distinguish between the results for the two groups.
• 13M.3.SL.TZ1.7a: State the difference in chlorophyll content for Phaseolus between high and low light intensity,...
• 13M.3.SL.TZ2.5b: Outline ATP production in muscle fibres during intense exercise.
• 13M.3.SL.TZ2.9a: Distinguish between oxidation and reduction in biological reactions.
• 11M.1.HL.TZ1.31: What is produced by the light-dependent reactions of photosynthesis and used in the Calvin...
• 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.TZ2.5c: Explain the light-independent reactions of photosynthesis.
• 11M.2.HL.TZ2.1h: Using the data from both graphs, evaluate the hypothesis that increased activity causes an...
• 11M.3.SL.TZ1.7e: Based on the information and data provided, discuss the role of one limiting factor, other than...
• 11M.3.SL.TZ1.9a: Draw a labelled diagram of a mitochondrion.
• 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.TZ1.1b: In its natural environment, Laternula elliptica buries itself in the mud on the sea bed. In this...
• 10M.1.HL.TZ1.27: Which is correct for the non-competitive inhibition of enzymes?
• 10M.1.HL.TZ2.27: Why is oxaloacetate a competitive inhibitor? A. It causes a conformational change to the...
• 10M.3.SL.TZ2.8a: Draw a labelled diagram showing the structure of a mitochondrion as seen in electron micrographs.
• 10M.3.SL.TZ2.7b: Identify, with a reason, the water depth that receives no light.
• 11N.3.SL.TZ0.8b: Explain the relationship between chloroplast structure and its function.
• 12N.2.HL.TZ0.6c: In anaerobic conditions, plants release energy by glycolysis. Outline the process of glycolysis.
• 12N.3.SL.TZ0.7b: The line on each graph indicates the mean net photosynthesis rate. Calculate the difference in...
• 12N.3.SL.TZ0.9a: Draw a labelled diagram showing the structure of a mitochondrion as seen under an electron...
• 09N.3.SL.TZ0.7a: Describe the effect of salt concentration on the activity of the light-dependent reactions overall.
• 09N.3.SL.TZ0.7c: When salt concentration is increased, some algal cells increase their rates of cyclic...
• 15N.1.HL.TZ0.28: From which substrate is the first carbon dioxide molecule released during cellular...
• 15N.2.HL.TZ0.1d: State the range of lipid content measured in O. nerka caught during autumn 2008. .......g
• 15N.2.HL.TZ0.1f: Suggest reasons for the differences in lipid content.
• 15N.3.SL.TZ0.7a: State the level of chlorophyll at 50 % water content for plants growing in sunlight, giving the...
• 13N.2.HL.TZ0.7b: Some proteins in membranes act as enzymes. Describe a model that accounts for the ability of...
• 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 intensities of...
• 14N.1.HL.TZ0.12: What causes cyclic photophosphorylation to occur in photosynthesis?A. Reduced NADP is...
• 14N.1.HL.TZ0.21: On sites polluted with heavy metals, some grasses show tolerance to concentrations of those...
• 14N.1.HL.TZ0.24: How has the transmission of HIV been reduced?A. Delaying the progression of HIV to AIDSB. Single...
• 09N.1.HL.TZ0.28: What reaction, involving glycerate 3-phosphate, is part of the light-independent reactions of...
• 09N.1.HL.TZ0.29: What is the advantage of having a small volume inside the thylakoids of the chloroplast?A. High...
• 17M.1.SL.TZ1.1: Which structure found in eukaryotes has a single membrane? A. Nucleus B. Lysosome C....
• 17M.1.HL.TZ1.31: The graph shows the rate of an enzymatic reaction versus the substrate concentration, in the...
• 17M.1.HL.TZ2.14: This reaction occurs in mitochondria. What explains that this reaction enables energy to be...
• 17N.2.HL.TZ0.04b: Describe the process of photolysis in photosynthesis.
• 13M.3.SL.TZ1.7c: Suggest one advantage for plants to increase their leaf chlorophyll content per surface area when...
• 13M.3.SL.TZ1.8a (ii): State the role of ribulose bisphosphate (RuBP) carboxylase in the Calvin cycle.
• 13M.3.SL.TZ2.9b: State two products of glycolysis. 1. ...
• 13M.3.SL.TZ2.9c: Explain the role of cristae in mitochondria.
• 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.3.SL.TZ1.7c: Outline the relationship between pH and the rate of photosynthesis.
• 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.TZ2.28: What occurs during oxidative phosphorylation? A. ATP production using electrons from NADP B....
• 12M.3.SL.TZ2.8c: Describe non-competitive inhibition.
• 12M.3.SL.TZ2.9b: Explain how oxidative phosphorylation occurs by means of chemiosmosis.
• 12M.3.SL.TZ2.7c: Determine which enzyme shows overall greater activity from 25°C to 42°C.
• 12M.3.SL.TZ2.7d: Explain the change in activase activity at temperatures higher than 42 °C.
• 10M.2.HL.TZ1.5c: Photosynthesis and transpiration occur in leaves. Explain how temperature affects these processes.
• 10M.2.HL.TZ1.1c (ii): Suggest two reasons for the trends that you have described.
• 10M.1.HL.TZ2.30: The diagram below shows the structure of a chloroplast. What is the structure labelled X? A....
• 10M.3.SL.TZ1.11a (iii): List one product other than carbon dioxide formed in this stage of respiration.
• 11N.1.HL.TZ0.13: What happens for each glucose during glycolysis? A. Four ATP are used. B. Two three-carbon...
• 11N.3.SL.TZ0.8c: Distinguish between oxidation and reduction.
• 12N.1.HL.TZ0.30: In the following diagram of a metabolic pathway, which letter represents acetyl CoA?
• 15N.2.HL.TZ0.1b: Compare the data in the graph for autumn 2008 and winter 2009.
• 15N.2.HL.TZ0.1c: Suggest two factors that could affect the distribution of O. nerka in the North Pacific Ocean.
• 13N.3.SL.TZ0.9b: Explain the relationship between the structure of the chloroplast and its function.
• 15M.2.HL.TZ1.2b (ii): Describe how structure I is held together.    
• 13M.2.HL.TZ1.1c: Outline the effect of drought and of re-watering on the rate of photosynthesis.
• 13M.2.HL.TZ1.1e: Compare the effect of the two temperatures on the emission of isoprene.
• 13M.2.HL.TZ1.1i: State the difference in percentage recovery of photosynthesis 1 hour after heat treatment between...
• 13M.2.HL.TZ1.3a: State the type of inhibition shown in this diagram.
• 13M.2.HL.TZ1.3b: Explain how this type of regulation could affect the synthesis of an amino acid.
• 13M.1.HL.TZ1.29: In a chloroplast where are the enzymes of the Calvin cycle located? A. Thylakoid membranesB....
• 12M.3.SL.TZ2.9a: Label the following micrograph of a mitochondrion.
• 09M.1.HL.TZ1.29: Where are complex carbohydrates made in the chloroplast? A. In the intermembrane space B. In the...
• 10M.2.HL.TZ1.1e (i): State the highest carbon dioxide concentration shown on the graph.
• 10M.2.HL.TZ1.1d (i): Diffusion of carbon dioxide only occurs when there is a concentration gradient. Deduce the...
• 10M.1.HL.TZ1.29: During glycolysis a hexose sugar is broken down to two pyruvate molecules. What is the correct...
• 10M.3.SL.TZ1.11b: State precisely where in a cell this stage of respiration is occurring.
• 10M.3.SL.TZ2.8b: Explain the relationship between the structure of the mitochondrion and its function.
• 11N.3.SL.TZ0.7c: Using the data, deduce, with reasons, whether anaerobic respiration provides some or all of the...
• 11N.3.SL.TZ0.8a: Label I and II. I. .................................................................. II....
• 12N.3.SL.TZ0.8a: Describe how the tertiary protein structure relates to enzyme function.
• 12N.3.SL.TZ0.8b: Explain the control of metabolic pathways by end-product inhibition, including the role of...
• 12N.3.SL.TZ0.9b: Explain the relationship between the structure of the mitochondrion and its function.
• 15N.1.HL.TZ0.30: What products of the light-dependent reactions are used in the light-independent reactions? A....
• 15N.2.HL.TZ0.3c(ii): Outline the role of coenzyme A in aerobic respiration.
• 17M.1.HL.TZ1.29: The diagram shows a mitochondrion. Which letter indicates the structure where ATP synthase is...
• 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 microscope.
• 13M.2.HL.TZ2.1h: Using all of the data, evaluate the evidence that suggests the consumption of large amounts of...
• 13M.1.HL.TZ2.29: When is energy released in a cell? A. ADP combines with inorganic phosphate.B. ATP releases...
• 13M.3.SL.TZ2.5c: Explain the role of ATP in muscle contraction.
• 13M.3.SL.TZ1.8c: Explain non-competitive inhibition.
• 11M.2.HL.TZ2.1g: Explain why oxygen consumption is used as a measure of metabolic rate.
• 11M.2.HL.TZ2.5b: Distinguish between competitive and non-competitive enzyme inhibition of chemical reactions,...
• 12M.2.HL.TZ1.5c: Explain the effect of inhibitors on the activity of enzymes.
• 12M.1.HL.TZ2.30: What is a function of Y? A. Carbon fixation B. Absorption of light C. Storage of glucose D....
• 12M.1.HL.TZ2.29: What is the structure labelled X? A. Stroma B. Granum C. Crista D. Starch granule
• 12M.3.SL.TZ1.8b: Outline the process of glycolysis.
• 12M.3.SL.TZ1.8c: Using light as an example, explain the concept of limiting factors in photosynthesis.
• 12M.3.SL.TZ2.7a: State the relationship between Rubisco activity and temperature.
• 09M.1.HL.TZ2.8: Where in the cell does the Calvin cycle take place? A. Stroma of chloroplastB. Mitochondrial...
• 10M.1.HL.TZ2.28: What is the link reaction in aerobic respiration? A. Pyruvate is carboxylated, acetyl reacts...
• 10M.3.SL.TZ1.12: Explain the control of metabolic pathways.
• 10M.3.SL.TZ1.9c: Using the data in the table, discuss whether rising carbon dioxide levels in the atmosphere will...
• 10M.3.SL.TZ2.7d: Compare production in March with production in September.
• 11N.3.SL.TZ0.7b: Compare the changes in oxygen and lactate content in the blood when a resting rattlesnake starts...
• 12N.3.SL.TZ0.7a: Identify the relationship between temperature and CO2 absorption shown in both graphs.
• 12N.3.SL.TZ0.7e: State two products that pass from the light-dependent to the light-independent stages of...
• 10N.3.SL.TZ0.7a: State the activity of the wild-type enzyme without the inhibitor and with the inhibitor. Without...
• 10N.3.SL.TZ0.8a(ii): Explain H+ movement in mitochondria and its significance for chemiosmosis.
• 10N.3.SL.TZ0.7b: Distinguish between the enzyme activity without the inhibitor in the wild-type and the mutant...
• 09N.3.SL.TZ0.8c: Explain what is meant by allosteric inhibition.
• 15N.2.HL.TZ0.1a: Identify the total number of O. nerka with fork length from 240 to 245 mm caught in autumn 2008...
• 15N.2.HL.TZ0.1i: As the O. nerka migrate upstream they no longer feed. Suggest a reason for the relationship of...
• 13N.1.HL.TZ0.28: What describes non-competitive inhibition?A. Inhibiting molecule does not resemble substrate and...
• 13N.3.SL.TZ0.7d: Deduce, with reasons, whether the peptides act as competitive or non-competitive inhibitors of...
• 16N.1.HL.TZ0.30: Which process requires oxygen in aerobic cell respiration? A. Oxidation of triose phosphateB....
• 16N.2.HL.TZ0.8a: Explain the processes by which light energy is converted into chemical energy.
• 15M.2.HL.TZ1.2b (i): Identify the protein structures indicated by I and II. I: ...
• 15M.3.SL.TZ1.8b: Explain how the structure of a mitochondrion is related to its function.
• 13M.2.HL.TZ1.1h: Suggest possible conclusions for this experiment.
• 13M.2.HL.TZ1.1d: Describe the isoprene emissions during the drought and recovery periods at 25°C.
• 13M.2.HL.TZ1.1f: State the effect of heat treatment on the rate of photosynthesis.
• 13M.2.HL.TZ1.1g: Using the results in the graph, deduce the effect of the presence of fosmidomycin on the rate of...
• 13M.1.HL.TZ1.27: The enzyme succinic dehydrogenase catalyses the conversion of succinate to fumarate. The...
• 13M.1.HL.TZ2.28: What is an allosteric site? A. The area on an enzyme that binds the end-product of a metabolic...
• 13M.3.SL.TZ2.8c: Describe how the link reaction and the Krebs cycle are related.
• 13M.3.SL.TZ1.9b: Explain the relationship between the action spectrum and the absorption spectrum of...
• 11M.2.HL.TZ2.1f: Suggest one reason why the results differ for single mice and group mice.
• 11M.2.HL.TZ2.1b: Outline the relationship between activity and temperature from 21:00 to 03:00 in all of the mice.
• 11M.3.SL.TZ1.7d: Suggest how Zostera marina can perform photosynthesis even at very low carbon dioxide...
• 12M.2.HL.TZ2.6b: Outline control of metabolic pathways.
• 12M.3.SL.TZ1.8a: Distinguish between oxidation and reduction.
• 12M.3.SL.TZ2.7e: In a leaf, both enzymes are present together. Predict, with a reason, how the rate of...
• 09M.2.HL.TZ2.4b: Outline the light-dependent reactions of photosynthesis.
• 10M.2.HL.TZ1.1c (i): Describe the trends in atmospheric carbon dioxide concentration, shown in the graph.
• 10M.2.HL.TZ1.1d (ii): The graph provides evidence for the hypothesis that there will be no net diffusion of carbon...
• 10M.3.SL.TZ1.11a (i): Label pyruvate and acetyl coenzyme A on the diagram above.
• 10M.3.SL.TZ2.7a: State the month when total photosynthesis was greatest.
• 10M.3.SL.TZ2.7c: In the upper 40m there is a drop in photosynthesis from March to June. This is probably due to...
• 11N.2.HL.TZ0.8 a: Draw the absorption spectrum of chlorophyll.
• 11N.2.HL.TZ0.8 b: Explain the process of photophosphorylation in chloroplasts.
• 11N.3.SL.TZ0.9c: Explain the control of metabolic pathways by end-product inhibition.
• 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.TZ0.7b: Compare the effect of increasing salt concentration on photosystem I with the effect on...
• 09N.3.SL.TZ0.9c: Explain how any two structural features of the mitochondrion are related to its function.
• 15N.1.HL.TZ0.29: During photosynthesis, what happens in the chloroplast at the location labelled lumen? A....
• 15N.2.HL.TZ0.1e: Outline any correlation between total lipid content and fork length in autumn 2008 and in winter...
• 15N.2.HL.TZ0.1h: State the concentration of PCBs in muscle lipids at 125 km from the ocean estimated by the...
• 15N.2.HL.TZ0.3c(i): One of the stages of aerobic respiration is called the link reaction. Label the diagram to...
• 15N.3.SL.TZ0.9a: Draw a labelled diagram showing the structure of a chloroplast.
• 15N.3.SL.TZ0.9b: Explain how energy is released and used to make ATP by electron carriers in the electron...
• 13N.1.HL.TZ0.30: What happens during oxidative decarboxylation of pyruvate?A. Reduction of NAD+ and oxidation of...
• 13N.2.HL.TZ0.4b: Outline photoactivation of photosystem II in the light-dependent reaction of photosynthesis.
• 13N.3.SL.TZ0.7b: Compare the effect of increasing the concentration of peptide 2 and peptide 3 on the remaining...
• 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 electron...
• 16N.1.HL.TZ0.31: The electron micrograph shows part of a plant cell. Where do the light-independent reactions of...
• 16N.2.HL.TZ0.3b: Outline the importance of enzymes to metabolic processes.
• 17M.1.HL.TZ2.15: What is used to reduce NADP in the light-dependent reactions of photosynthesis? A. Conversion of...