Directly related questions
- EXEX.1B.HL.TZ0.5aii: Suggest a variable that needs to be kept constant in both groups of mice to ensure reliable results
- EXEX.1B.HL.TZ0.5aii: Suggest a variable that needs to be kept constant in both groups of mice to ensure reliable results
- EXEX.1B.HL.TZ0.5aii: Suggest a variable that needs to be kept constant in both groups of mice to ensure reliable results
- EXEX.1B.HL.TZ0.5aii: Suggest a variable that needs to be kept constant in both groups of mice to ensure reliable results
- EXEX.1B.HL.TZ0.ii: Suggest a variable that needs to be kept constant in both groups of mice to ensure reliable results
- EXEX.1B.HL.TZ0.5ai: State the independent variable in this investigation.
- EXEX.1B.HL.TZ0.5ai: State the independent variable in this investigation.
- EXEX.1B.HL.TZ0.5ai: State the independent variable in this investigation.
- EXEX.1B.HL.TZ0.5ai: State the independent variable in this investigation.
- EXEX.1B.HL.TZ0.i: State the independent variable in this investigation.
-
22N.1A.HL.TZ0.31:
What occurs in the light-independent reactions of photosynthesis?
A. Glycerate 3-phosphate is reduced to triose phosphate.
B. Ribulose bisphosphate is regenerated using reduced NADP.
C. Ribulose bisphosphate is oxidized to two molecules of glycerate 3-phosphate.
D. Both ATP and NADP are used to produce triose phosphate.
-
22N.1A.HL.TZ0.31:
What occurs in the light-independent reactions of photosynthesis?
A. Glycerate 3-phosphate is reduced to triose phosphate.
B. Ribulose bisphosphate is regenerated using reduced NADP.
C. Ribulose bisphosphate is oxidized to two molecules of glycerate 3-phosphate.
D. Both ATP and NADP are used to produce triose phosphate.
- 22N.1A.SL.TZ0.12: Absorption spectra of two photosynthetic pigments are shown. Phycoerythrin is a red pigment found...
- 22N.1A.SL.TZ0.12: Absorption spectra of two photosynthetic pigments are shown. Phycoerythrin is a red pigment found...
- 22N.1A.HL.TZ0.8: The action spectra for two different types of photosynthetic organisms are shown. Ulva, or sea...
- 22N.1A.HL.TZ0.8: The action spectra for two different types of photosynthetic organisms are shown. Ulva, or sea...
-
22N.2.HL.TZ0.7b:
Describe how ATP is produced by Photosystem II in the light-dependent stage of photosynthesis.
-
22N.2.HL.TZ0.b:
Describe how ATP is produced by Photosystem II in the light-dependent stage of photosynthesis.
Sub sections and their related questions
C1.3.1. Transformation of light energy to chemical energy when carbon compounds are produced in photosynthesis
-
19M.2.SL.TZ2.6b:
Outline how photosynthesis produces glucose.
- 21N.1A.SL.TZ0.8: What prevents plants from converting carbon dioxide into glucose in the dark? A. They do not...
-
22M.2.SL.TZ1.6b:
Describe how leaf cells make use of light energy.
- 20N.2.SL.TZ0.5b: Outline how carbon compounds are produced in cells using light energy.
-
19M.2.SL.TZ2.6b:
Outline how photosynthesis produces glucose.
-
19M.2.SL.TZ2.b:
Outline how photosynthesis produces glucose.
- 21N.1A.SL.TZ0.8: What prevents plants from converting carbon dioxide into glucose in the dark? A. They do not...
-
22M.2.SL.TZ1.6b:
Describe how leaf cells make use of light energy.
-
22M.2.SL.TZ1.b:
Describe how leaf cells make use of light energy.
- 20N.2.SL.TZ0.5b: Outline how carbon compounds are produced in cells using light energy.
- 20N.2.SL.TZ0.b: Outline how carbon compounds are produced in cells using light energy.
C1.3.2. Conversion of carbon dioxide to glucose in photosynthesis using hydrogen obtained by splitting water
- 21M.2.SL.TZ1.2d: Outline the uses of ATP in plant cells.
- 19N.2.SL.TZ0.4b.ii: Explain how water is used in photosynthesis.
- 21M.2.SL.TZ1.2d: Outline the uses of ATP in plant cells.
- 21M.2.SL.TZ1.d: Outline the uses of ATP in plant cells.
- 19N.2.SL.TZ0.4b.ii: Explain how water is used in photosynthesis.
- 19N.2.SL.TZ0.b.ii: Explain how water is used in photosynthesis.
C1.3.3. Oxygen as a by-product of photosynthesis in plants, algae and cyanobacteria
NoneC1.3.4. Separation and identification of photosynthetic pigments by chromatography
-
20N.1B.SL.TZ0.3d:
A chromatograph was made of the photosynthetic pigments of a leaf of the plant.
[Source: Adapted from “Diversity of Photosynthetic Pigments” by Alexander F. Motten in Tested Studies for
Laboratory Teaching, Volume 16 of the Association for Biology Laboratory Education and used by permission of the
author.]Outline what measurements would be taken to identify pigment X.
-
20N.1B.SL.TZ0.d:
A chromatograph was made of the photosynthetic pigments of a leaf of the plant.
[Source: Adapted from “Diversity of Photosynthetic Pigments” by Alexander F. Motten in Tested Studies for
Laboratory Teaching, Volume 16 of the Association for Biology Laboratory Education and used by permission of the
author.]Outline what measurements would be taken to identify pigment X.
C1.3.5. Absorption of specific wavelengths of light by photosynthetic pigments
-
21N.1A.SL.TZ1.8:
In 1882, Engelmann investigated photosynthesis by shining light of varying wavelength on a green alga. He observed where aerobic bacteria accumulated.
[Source: Republished with permission of Oxford University Press, from Plant Physiology and Development, Sixth Edition by
Lincoln Taiz, Eduardo Zeiger, Ian M. Møller, and Angus Murphy, 2015. Permission conveyed through Copyright
Clearance Center, Inc.]What can be deduced from this experiment?
A. Only parts of the chloroplast contained chlorophyll.
B. The distribution of bacteria indicates the action spectrum of photosynthesis.
C. Most oxygen is released from the algae in green light.
D. Chloroplasts reflect blue and red light.
- 19M.2.SL.TZ1.8c: Explain how plants capture and use light in photosynthesis.
- 19M.1A.SL.TZ1.9: Which wavelength of electromagnetic radiation is absorbed efficiently by chlorophyll for...
- 21M.1A.SL.TZ1.16: If a plant is exposed to light, which colour of light would lead to the lowest rate of oxygen...
-
19M.1A.SL.TZ2.11:
The graph shows the absorption spectra of chlorophyll a and chlorophyll b.
[Source: adapted from F. P. Zscheile and C. L. Comar, 'Influence of Preparative Procedure on the Purity of Chlorophyll
Components as Shown by Absorption Spectra.' Int. J. Plant Sciences, Volume 102, Number 3, Mar., 1941, pp. 463–481.
Used with the kind permission of University of Chicago Press.]What can be concluded from the graph?
A. Both chlorophyll a and chlorophyll b absorb a large amount of green light
B. Chlorophyll b absorbs red light more efficiently than blue light
C. Other pigments must absorb light between blue and red in the spectrum
D. Chlorophyll a and chlorophyll b have different absorption peaks
-
22M.2.SL.TZ1.6b:
Describe how leaf cells make use of light energy.
- 22N.1A.SL.TZ0.12: Absorption spectra of two photosynthetic pigments are shown. Phycoerythrin is a red pigment found...
-
21N.1A.SL.TZ1.8:
In 1882, Engelmann investigated photosynthesis by shining light of varying wavelength on a green alga. He observed where aerobic bacteria accumulated.
[Source: Republished with permission of Oxford University Press, from Plant Physiology and Development, Sixth Edition by
Lincoln Taiz, Eduardo Zeiger, Ian M. Møller, and Angus Murphy, 2015. Permission conveyed through Copyright
Clearance Center, Inc.]What can be deduced from this experiment?
A. Only parts of the chloroplast contained chlorophyll.
B. The distribution of bacteria indicates the action spectrum of photosynthesis.
C. Most oxygen is released from the algae in green light.
D. Chloroplasts reflect blue and red light.
- 19M.2.SL.TZ1.8c: Explain how plants capture and use light in photosynthesis.
- 19M.2.SL.TZ1.c: Explain how plants capture and use light in photosynthesis.
- 19M.1A.SL.TZ1.9: Which wavelength of electromagnetic radiation is absorbed efficiently by chlorophyll for...
- 21M.1A.SL.TZ1.16: If a plant is exposed to light, which colour of light would lead to the lowest rate of oxygen...
-
19M.1A.SL.TZ2.11:
The graph shows the absorption spectra of chlorophyll a and chlorophyll b.
[Source: adapted from F. P. Zscheile and C. L. Comar, 'Influence of Preparative Procedure on the Purity of Chlorophyll
Components as Shown by Absorption Spectra.' Int. J. Plant Sciences, Volume 102, Number 3, Mar., 1941, pp. 463–481.
Used with the kind permission of University of Chicago Press.]What can be concluded from the graph?
A. Both chlorophyll a and chlorophyll b absorb a large amount of green light
B. Chlorophyll b absorbs red light more efficiently than blue light
C. Other pigments must absorb light between blue and red in the spectrum
D. Chlorophyll a and chlorophyll b have different absorption peaks
-
22M.2.SL.TZ1.6b:
Describe how leaf cells make use of light energy.
-
22M.2.SL.TZ1.b:
Describe how leaf cells make use of light energy.
- 22N.1A.SL.TZ0.12: Absorption spectra of two photosynthetic pigments are shown. Phycoerythrin is a red pigment found...
C1.3.6. Similarities and differences of absorption and action spectra
- 19M.2.SL.TZ2.8b: Draw a fully labelled graph of the action spectrum for photosynthesis.
- 22M.1A.SL.TZ2.7: What does an action spectrum for photosynthesis show? A. The range of conditions over which...
- 22N.1A.HL.TZ0.8: The action spectra for two different types of photosynthetic organisms are shown. Ulva, or sea...
- 23M.1A.SL.TZ2.10: Which graph represents the action spectrum for a green plant receiving only blue light?
- 23M.1A.SL.TZ2.13: Which graph represents the action spectrum for a green plant receiving only blue light?
- 19M.2.SL.TZ2.8b: Draw a fully labelled graph of the action spectrum for photosynthesis.
- 19M.2.SL.TZ2.b: Draw a fully labelled graph of the action spectrum for photosynthesis.
- 22M.1A.SL.TZ2.7: What does an action spectrum for photosynthesis show? A. The range of conditions over which...
- 22N.1A.HL.TZ0.8: The action spectra for two different types of photosynthetic organisms are shown. Ulva, or sea...
- 23M.1A.SL.TZ2.10: Which graph represents the action spectrum for a green plant receiving only blue light?
- 23M.1A.SL.TZ2.13: Which graph represents the action spectrum for a green plant receiving only blue light?
C1.3.7. Techniques for varying concentrations of carbon dioxide, light intensity or temperature experimentally to investigate the effects of limiting factors on the rate of photosynthesis
-
22M.1A.SL.TZ2.12:
The apparatus shown was used to investigate the effect of varying carbon dioxide concentration on the rate of photosynthesis. Carbon dioxide concentrations were varied by adding different amounts of sodium hydrogen carbonate (NaHCO3) to water.
What is the dependent variable in this investigation?
A. Temperature
B. Light intensity
C. Amount of NaHCO3 added
D. Volume of oxygen produced
-
20N.1B.SL.TZ0.3a:
State the name of the process which occurs in the chloroplasts of Chlorella, that uses CO2.
-
20N.1B.SL.TZ0.3b.i:
The colours of the indicator in the jars ranged from yellow to purple after five hours.
Predict the distribution of indicator colours in jars 1 to 9.
-
20N.1B.SL.TZ0.3b.ii:
Explain the scientific reasoning for your hypothesis.
- 20N.1B.SL.TZ0.3c: Suggest one other factor that has to be kept constant in all the jars during the experiment.
- 19N.2.SL.TZ0.12a: Outline how these results indicate that blackberry distribution is limited by light intensity.
- 22M.1A.SL.TZ1.12: The graph shows how the rate of photosynthesis of a green plant varies with CO2 concentration at...
-
21N.2.SL.TZ0.3c:
The amount of food passing into food chains can be affected by the rate of photosynthesis. Explain the effect of one limiting factor on photosynthesis.
-
20N.1B.SL.TZ0.3a:
Describe the control for this experiment.
-
20N.1B.SL.TZ0.3b:
Outline how the carbon dioxide could be removed from the water used to irrigate the plant.
-
20N.1B.SL.TZ0.3c:
Suggest how a plastic bag placed around the plant pot prevents carbon dioxide from reaching the plant’s leaves.
- 20N.1A.SL.TZ0.12: Plants produce carbon dioxide in respiration and use carbon dioxide in photosynthesis. The graph...
-
19M.1A.SL.TZ1.12:
The graph shows the effect of increasing light intensity on the rate of CO2 uptake by a species of green plant maintained in conditions of constant temperature and CO2 concentration.
[Source: © International Baccalaureate Organization 2019]
Which statement is consistent with the graph?
A. Photosynthesis stops at high light intensity.
B. Rates of photosynthesis increase with temperature.
C. Cell respiration leads to net production of CO2 at low light intensity.
D. There is a negative correlation between CO2 uptake and light intensity.
-
21N.2.SL.TZ0.1c:
Explain the effect of temperature on the rate of photosynthesis in this mesocosm.
-
21N.2.SL.TZ0.1d:
Suggest reasons for the decreases in biomass of autotrophs as temperature rises, despite the increases in photosynthesis.
- 21N.2.SL.TZ0.1e: Describe the effects of temperature and nitrate concentration on biomass.
-
21N.2.SL.TZ0.1f:
Suggest two abiotic factors, other than temperature and nutrient supply, that may affect the production of biomass of the grasslands.
- 23M.1B.SL.TZ1.3a: Suggest a reason for including a lid with vents above the water reservoir.
-
23M.1B.SL.TZ1.3b:
Explain the differences in the water loss rate in dark and light conditions.
- 23M.1B.SL.TZ1.3c: Describe how the rose shoot could be treated to show what part of the plant loses water.
- 23M.1B.SL.TZ1.3d: A standard potometer only measures water uptake. Explain how this apparatus measures the amount...
- 23M.1B.SL.TZ1.3a: State
- 23M.1B.SL.TZ1.3ai: where the DNA of each individual could be taken from.
- 23M.1B.SL.TZ1.3aii: how the DNA is amplified.
- 23M.1B.SL.TZ1.3b: Deduce with a reason the identity of the father.
- EXEX.1B.HL.TZ0.5ai: State the independent variable in this investigation.
- EXEX.1B.HL.TZ0.5aii: Suggest a variable that needs to be kept constant in both groups of mice to ensure reliable results
- EXEX.1B.HL.TZ0.5ai: State the independent variable in this investigation.
- EXEX.1B.HL.TZ0.5aii: Suggest a variable that needs to be kept constant in both groups of mice to ensure reliable results
- EXEX.1B.HL.TZ0.5ai: State the independent variable in this investigation.
- EXEX.1B.HL.TZ0.5aii: Suggest a variable that needs to be kept constant in both groups of mice to ensure reliable results
-
22M.1A.SL.TZ2.12:
The apparatus shown was used to investigate the effect of varying carbon dioxide concentration on the rate of photosynthesis. Carbon dioxide concentrations were varied by adding different amounts of sodium hydrogen carbonate (NaHCO3) to water.
What is the dependent variable in this investigation?
A. Temperature
B. Light intensity
C. Amount of NaHCO3 added
D. Volume of oxygen produced
-
22M.1A.SL.TZ2.12:
The apparatus shown was used to investigate the effect of varying carbon dioxide concentration on the rate of photosynthesis. Carbon dioxide concentrations were varied by adding different amounts of sodium hydrogen carbonate (NaHCO3) to water.
What is the dependent variable in this investigation?
A. Temperature
B. Light intensity
C. Amount of NaHCO3 added
D. Volume of oxygen produced
-
22M.1A.SL.TZ2.12:
The apparatus shown was used to investigate the effect of varying carbon dioxide concentration on the rate of photosynthesis. Carbon dioxide concentrations were varied by adding different amounts of sodium hydrogen carbonate (NaHCO3) to water.
What is the dependent variable in this investigation?
A. Temperature
B. Light intensity
C. Amount of NaHCO3 added
D. Volume of oxygen produced
-
22M.1A.SL.TZ2.12:
The apparatus shown was used to investigate the effect of varying carbon dioxide concentration on the rate of photosynthesis. Carbon dioxide concentrations were varied by adding different amounts of sodium hydrogen carbonate (NaHCO3) to water.
What is the dependent variable in this investigation?
A. Temperature
B. Light intensity
C. Amount of NaHCO3 added
D. Volume of oxygen produced
-
22M.1A.SL.TZ2.12:
The apparatus shown was used to investigate the effect of varying carbon dioxide concentration on the rate of photosynthesis. Carbon dioxide concentrations were varied by adding different amounts of sodium hydrogen carbonate (NaHCO3) to water.
What is the dependent variable in this investigation?
A. Temperature
B. Light intensity
C. Amount of NaHCO3 added
D. Volume of oxygen produced
-
20N.1B.SL.TZ0.a:
State the name of the process which occurs in the chloroplasts of Chlorella, that uses CO2.
-
20N.1B.SL.TZ0.b.i:
The colours of the indicator in the jars ranged from yellow to purple after five hours.
Predict the distribution of indicator colours in jars 1 to 9.
-
20N.1B.SL.TZ0.b.ii:
Explain the scientific reasoning for your hypothesis.
- 20N.1B.SL.TZ0.c: Suggest one other factor that has to be kept constant in all the jars during the experiment.
- 19N.2.SL.TZ0.a: Outline how these results indicate that blackberry distribution is limited by light intensity.
- 22M.1A.SL.TZ1.12: The graph shows how the rate of photosynthesis of a green plant varies with CO2 concentration at...
-
21N.2.SL.TZ0.3c:
The amount of food passing into food chains can be affected by the rate of photosynthesis. Explain the effect of one limiting factor on photosynthesis.
-
21N.2.SL.TZ0.c:
The amount of food passing into food chains can be affected by the rate of photosynthesis. Explain the effect of one limiting factor on photosynthesis.
-
20N.1B.SL.TZ0.a:
Describe the control for this experiment.
-
20N.1B.SL.TZ0.b:
Outline how the carbon dioxide could be removed from the water used to irrigate the plant.
-
20N.1B.SL.TZ0.c:
Suggest how a plastic bag placed around the plant pot prevents carbon dioxide from reaching the plant’s leaves.
- 20N.1A.SL.TZ0.12: Plants produce carbon dioxide in respiration and use carbon dioxide in photosynthesis. The graph...
-
19M.1A.SL.TZ1.12:
The graph shows the effect of increasing light intensity on the rate of CO2 uptake by a species of green plant maintained in conditions of constant temperature and CO2 concentration.
[Source: © International Baccalaureate Organization 2019]
Which statement is consistent with the graph?
A. Photosynthesis stops at high light intensity.
B. Rates of photosynthesis increase with temperature.
C. Cell respiration leads to net production of CO2 at low light intensity.
D. There is a negative correlation between CO2 uptake and light intensity.
-
21N.2.SL.TZ0.1c:
Explain the effect of temperature on the rate of photosynthesis in this mesocosm.
-
21N.2.SL.TZ0.1d:
Suggest reasons for the decreases in biomass of autotrophs as temperature rises, despite the increases in photosynthesis.
- 21N.2.SL.TZ0.1e: Describe the effects of temperature and nitrate concentration on biomass.
-
21N.2.SL.TZ0.1f:
Suggest two abiotic factors, other than temperature and nutrient supply, that may affect the production of biomass of the grasslands.
-
21N.2.SL.TZ0.c:
Explain the effect of temperature on the rate of photosynthesis in this mesocosm.
-
21N.2.SL.TZ0.d:
Suggest reasons for the decreases in biomass of autotrophs as temperature rises, despite the increases in photosynthesis.
- 21N.2.SL.TZ0.e: Describe the effects of temperature and nitrate concentration on biomass.
-
21N.2.SL.TZ0.f:
Suggest two abiotic factors, other than temperature and nutrient supply, that may affect the production of biomass of the grasslands.
- 23M.1B.SL.TZ1.a: Suggest a reason for including a lid with vents above the water reservoir.
-
23M.1B.SL.TZ1.b:
Explain the differences in the water loss rate in dark and light conditions.
- 23M.1B.SL.TZ1.c: Describe how the rose shoot could be treated to show what part of the plant loses water.
- 23M.1B.SL.TZ1.d: A standard potometer only measures water uptake. Explain how this apparatus measures the amount...
- 23M.1B.SL.TZ1.a: State
- 23M.1B.SL.TZ1.ai: where the DNA of each individual could be taken from.
- 23M.1B.SL.TZ1.aii: how the DNA is amplified.
- 23M.1B.SL.TZ1.i: where the DNA of each individual could be taken from.
- 23M.1B.SL.TZ1.ii: how the DNA is amplified.
- 23M.1B.SL.TZ1.b: Deduce with a reason the identity of the father.
- EXEX.1B.HL.TZ0.5ai: State the independent variable in this investigation.
- EXEX.1B.HL.TZ0.5aii: Suggest a variable that needs to be kept constant in both groups of mice to ensure reliable results
- EXEX.1B.HL.TZ0.i: State the independent variable in this investigation.
- EXEX.1B.HL.TZ0.ii: Suggest a variable that needs to be kept constant in both groups of mice to ensure reliable results
C1.3.8. Carbon dioxide enrichment experiments as a means of predicting future rates of photosynthesis and plant growth
- 23M.1A.SL.TZ1.19: What is the main contribution of greenhouse gases to global warming? A. Absorbing long wave...
- 23M.1A.SL.TZ1.19: What is the main contribution of greenhouse gases to global warming? A. Absorbing long wave...
C1.3.9. Photosystems as arrays of pigment molecules that can generate and emit excited electrons
NoneC1.3.10. Advantages of the structured array of different types of pigment molecules in a photosystem
NoneC1.3.11. Generation of oxygen by the photolysis of water in photosystem II
-
20N.1A.HL.TZ0.30:
The diagram shows a section through a thylakoid. Electrons move from X to Y.
[Source: Courtesy Alyse Da Quynh.]
What do the letters X, Y and Z represent?
- 22M.1A.HL.TZ2.31: Photolysis and carboxylation of RuBP occur during photosynthesis. Where in the chloroplast do...
-
21M.1A.HL.TZ1.10:
The graph shows atmospheric oxygen levels over time.
About 2.5 billion years ago, a significant rise in atmospheric oxygen occurred. What was the cause of this rise?
A. Photosynthesis by non-vascular land plants
B. Photosynthesis by vascular land plants
C. Oxygen produced by photosynthetic bacteria being released from the ocean into the atmosphere
D. Volcanic activity
-
20N.1A.HL.TZ0.30:
The diagram shows a section through a thylakoid. Electrons move from X to Y.
[Source: Courtesy Alyse Da Quynh.]
What do the letters X, Y and Z represent?
- 22M.1A.HL.TZ2.31: Photolysis and carboxylation of RuBP occur during photosynthesis. Where in the chloroplast do...
-
21M.1A.HL.TZ1.10:
The graph shows atmospheric oxygen levels over time.
About 2.5 billion years ago, a significant rise in atmospheric oxygen occurred. What was the cause of this rise?
A. Photosynthesis by non-vascular land plants
B. Photosynthesis by vascular land plants
C. Oxygen produced by photosynthetic bacteria being released from the ocean into the atmosphere
D. Volcanic activity
C1.3.12. ATP production by chemiosmosis in thylakoids
- 22M.1A.HL.TZ2.30: The mitochondrion in the electron micrograph shows some features that make it efficient for its...
-
19N.1A.HL.TZ0.31:
Which structure in the chloroplast diagram is adapted to carry out chemiosmosis?
[Source: © International Baccalaureate Organization 2019]
-
20N.1A.HL.TZ0.30:
The diagram shows a section through a thylakoid. Electrons move from X to Y.
[Source: Courtesy Alyse Da Quynh.]
What do the letters X, Y and Z represent?
- 21M.1A.HL.TZ1.32: Which process does not take place in the stroma of chloroplasts? A. Synthesis of...
- 22M.1A.HL.TZ2.30: The mitochondrion in the electron micrograph shows some features that make it efficient for its...
- 22M.1A.HL.TZ2.30: The mitochondrion in the electron micrograph shows some features that make it efficient for its...
- 22M.1A.HL.TZ2.30: The mitochondrion in the electron micrograph shows some features that make it efficient for its...
- 22M.1A.HL.TZ2.30: The mitochondrion in the electron micrograph shows some features that make it efficient for its...
- 22M.1A.HL.TZ2.30: The mitochondrion in the electron micrograph shows some features that make it efficient for its...
-
19N.1A.HL.TZ0.31:
Which structure in the chloroplast diagram is adapted to carry out chemiosmosis?
[Source: © International Baccalaureate Organization 2019]
-
20N.1A.HL.TZ0.30:
The diagram shows a section through a thylakoid. Electrons move from X to Y.
[Source: Courtesy Alyse Da Quynh.]
What do the letters X, Y and Z represent?
- 21M.1A.HL.TZ1.32: Which process does not take place in the stroma of chloroplasts? A. Synthesis of...
C1.3.13. Reduction of NADP by photosystem I
-
21M.2.HL.TZ2.6a:
Explain the role of hydrogen ions used in photosynthesis.
-
23M.1A.HL.TZ2.27:
The micrograph shows part of a chloroplast.
[Source: Newcomb, E., n.d. [Detail of a chloroplast]. [image online] Available at: https://search.library.wisc.edu/digital/
AHDTZ7JMHZ5VSU8C [Accessed 1 October 2021] © Board of Regents of the University of Wisconsin System.
Licensed under the Creative Commons Attribution 4.0 International. https://creativecommons.org/licenses/by/4.0/
deed.en.]What reaction takes place in region P?
A. Carboxylation of ribulose bisphosphate
B. Photolysis of water molecules
C. Generation of ATP by ATP synthase
D. Reduction of NAD in Photosystem I
-
21M.2.HL.TZ2.6a:
Explain the role of hydrogen ions used in photosynthesis.
-
21M.2.HL.TZ2.a:
Explain the role of hydrogen ions used in photosynthesis.
-
23M.1A.HL.TZ2.27:
The micrograph shows part of a chloroplast.
[Source: Newcomb, E., n.d. [Detail of a chloroplast]. [image online] Available at: https://search.library.wisc.edu/digital/
AHDTZ7JMHZ5VSU8C [Accessed 1 October 2021] © Board of Regents of the University of Wisconsin System.
Licensed under the Creative Commons Attribution 4.0 International. https://creativecommons.org/licenses/by/4.0/
deed.en.]What reaction takes place in region P?
A. Carboxylation of ribulose bisphosphate
B. Photolysis of water molecules
C. Generation of ATP by ATP synthase
D. Reduction of NAD in Photosystem I
C1.3.14. Thylakoids as systems for performing the light-dependent reactions of photosynthesis
- 22M.1A.HL.TZ1.30: Where in the mitochondrion does the formation of acetyl CoA occur?
-
22N.2.HL.TZ0.7b:
Describe how ATP is produced by Photosystem II in the light-dependent stage of photosynthesis.
- 22M.1A.HL.TZ1.30: Where in the mitochondrion does the formation of acetyl CoA occur?
-
22N.2.HL.TZ0.b:
Describe how ATP is produced by Photosystem II in the light-dependent stage of photosynthesis.
C1.3.15. Carbon fixation by Rubisco
- 22M.1A.HL.TZ2.31: Photolysis and carboxylation of RuBP occur during photosynthesis. Where in the chloroplast do...
-
21M.2.HL.TZ2.3a:
State one function of Rubisco.
- 22M.1A.HL.TZ2.31: Photolysis and carboxylation of RuBP occur during photosynthesis. Where in the chloroplast do...
-
21M.2.HL.TZ2.3a:
State one function of Rubisco.
-
21M.2.HL.TZ2.a:
State one function of Rubisco.
C1.3.16. Synthesis of triose phosphate using reduced NADP and ATP
NoneC1.3.17. Regeneration of RuBP in the Calvin cycle using ATP
- 21N.1A.SL.TZ1.31: The diagram shows some of the intermediate compounds produced during the Calvin cycle. At what...
- 21N.1A.SL.TZ1.31: The diagram shows some of the intermediate compounds produced during the Calvin cycle. At what...
C1.3.18. Synthesis of carbohydrates, amino acids and other carbon compounds using the products of the Calvin cycle and mineral nutrients
- 21M.2.HL.TZ1.2a.ii: Identify the molecule Z.
- 21M.2.HL.TZ1.2a.ii: Identify the molecule Z.
- 21M.2.HL.TZ1.a.ii: Identify the molecule Z.
C1.3.19. Interdependence of the light-dependent and light-independent reactions
- 22M.1A.HL.TZ1.31: Which products of the light-dependent reactions are used in the Calvin cycle? A. O2 and hydrogen...
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21N.2.HL.TZ0.7c:
Explain how the light-independent reactions of photosynthesis rely on the light-dependent reactions.
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22N.1A.HL.TZ0.31:
What occurs in the light-independent reactions of photosynthesis?
A. Glycerate 3-phosphate is reduced to triose phosphate.
B. Ribulose bisphosphate is regenerated using reduced NADP.
C. Ribulose bisphosphate is oxidized to two molecules of glycerate 3-phosphate.
D. Both ATP and NADP are used to produce triose phosphate.
- 23M.1A.HL.TZ1.30: The cycle shows part of the light-independent reactions in photosynthesis. What occurs in Step...
- 22M.1A.HL.TZ1.31: Which products of the light-dependent reactions are used in the Calvin cycle? A. O2 and hydrogen...
- 22M.1A.HL.TZ1.31: Which products of the light-dependent reactions are used in the Calvin cycle? A. O2 and hydrogen...
- 22M.1A.HL.TZ1.31: Which products of the light-dependent reactions are used in the Calvin cycle? A. O2 and hydrogen...
- 22M.1A.HL.TZ1.31: Which products of the light-dependent reactions are used in the Calvin cycle? A. O2 and hydrogen...
- 22M.1A.HL.TZ1.31: Which products of the light-dependent reactions are used in the Calvin cycle? A. O2 and hydrogen...
-
21N.2.HL.TZ0.7c:
Explain how the light-independent reactions of photosynthesis rely on the light-dependent reactions.
-
21N.2.HL.TZ0.c:
Explain how the light-independent reactions of photosynthesis rely on the light-dependent reactions.
-
22N.1A.HL.TZ0.31:
What occurs in the light-independent reactions of photosynthesis?
A. Glycerate 3-phosphate is reduced to triose phosphate.
B. Ribulose bisphosphate is regenerated using reduced NADP.
C. Ribulose bisphosphate is oxidized to two molecules of glycerate 3-phosphate.
D. Both ATP and NADP are used to produce triose phosphate.
- 23M.1A.HL.TZ1.30: The cycle shows part of the light-independent reactions in photosynthesis. What occurs in Step...