Essential Biology 3.8 8.2 C4 Photosynthesis Core, AHL, OpC
Student Name:
Blog resource: http://tinyurl.com/4ckten2
Due Date:
Candidate Number: 002171Click4Biology: http://tinyurl.com/4ek7thd
Cite all sources using the CSE method (or ISO 690 Numerical in Word). The first example has been done for you.
Highlight all objective 1 command terms in yellow and complete these before class. Highlight all objective 2 and 3
command terms in green – these will be part of the discussions in class. After class, go back and review them.
Complete the self-assessment rubric before submitting.
1. Define photosynthesis
The conversion of ________________________ into _______________________ in plants. (1 p. 65)
2. Write a word equation and balanced symbol equation for the process of photosynthesis.
Word:
Symbol
3. Glucose is a product of photosynthesis. It can be used directly in respiration, stored as starch or
converted to glucose.
a. Distinguish between the functions of starch and cellulose.
Starch:
Cellulose:
b. Identify and outline the process of condensation to form a disaccharide.
c. Explain why a plant which is left in the dark for a long period of time will test negative for
starch.
Stephen Taylor
Bandung International School
http://sciencevideos.wordpress.com
Essential Biology 3.8 8.2 C4 Photosynthesis Core, AHL, OpC
Student Name:
Due Date:
Candidate Number: 002171-
4. Light from the Sun is composed of a range of wavelengths (colours).
a. Outline the properties of these wavelengths of light:
10-400
Wavelength (nm)
400-500
500-650
700-800
0.8-1000µm
Name
Ultraviolet
Infra-red
Photosynthesis?
No
No
Visible?
No
Energy
Very High
Low
Frequency
Very High
Low
Yes
Yes
Yes
No
5. State the name of the photosynthetic pigment and its location in green plants.
Name: ________________________
Location: ______________________________
6. Distinguish between action and absorption spectra for photosynthesis.
Action:
Absorption:
7. Use the spreadsheet here to produce action spectrum for photosynthesis and absorption
spectrum for chlorophyll: https://www.box.net/shared/cs6jvzv8n4
8. In the space below, draw a graph showing the action and absorption spectra for chlorophyll.
Annotate the diagram to show why leaves appear green.
Leaves appear green because…
Stephen Taylor
Bandung International School
http://sciencevideos.wordpress.com
Essential Biology 3.8 8.2 C4 Photosynthesis Core, AHL, OpC
Student Name:
Due Date:
Candidate Number: 002171-
9. Summarise the two main stages of photosynthesis:
Input
Outcome
Light energy is used to…
Light-dependent
reactions
Light
independent
reactions
10. Define rate, with regard to reactions.
11. Explain how the rate of photosynthesis can be measured directly and indirectly.
Direct Measurement 1
Product:
Explanation:
Direct Measurement 2
Product:
Explanation:
Indirect Measurement
Outcome:
Explanation:
Stephen Taylor
Bandung International School
http://sciencevideos.wordpress.com
Essential Biology 3.8 8.2 C4 Photosynthesis Core, AHL, OpC
Student Name:
Due Date:
Candidate Number: 002171-
12. Outline the effects of the following variables on the rate of photosynthesis.
Sketch and annotate a graph for each one.
Light intensity
Note: light intensity is not the same as wavelength or frequency. Light intensity refers to the amount of light of a given
wavelength which is available to the plant. Light intensity is high at the equator, in the summer or at midday.
Temperature
Carbon dioxide concentration
Stephen Taylor
Bandung International School
http://sciencevideos.wordpress.com
Essential Biology 3.8 8.2 C4 Photosynthesis Core, AHL, OpC
Student Name:
Due Date:
Candidate Number: 002171-
8.2/C4 Photosynthesis
13. In the space below, draw and label a diagram of a chloroplast, as seen under a TEM.
Include thylakoid membranes and thylakoid spaces, stroma, granum, chloroplast
envelope and a scale bar. Annotate the diagram with the function of each component and the
way it is adapted to increased efficiency.
14. Photosynthesis consists of two stages: light dependent and light independent reactions.
a. Define photolysis
b. Define photophosphorylation
c. Define carbon fixation
15. Explain what happens to an electron when it is excited by photons of light.
Stephen Taylor
Bandung International School
http://sciencevideos.wordpress.com
Essential Biology 3.8 8.2 C4 Photosynthesis Core, AHL, OpC
Student Name:
Due Date:
Candidate Number: 002171-
16. Annotate the diagram below to explain the light-dependent reactions of photosynthesis.
Include photolysis, photophosphorylation (and chemiosmosis), movement of electrons,
generation of a H+ gradient using a proton pump, reduction of NADP+ by ferredoxin.
17. Identify the two products of the light-dependent reactions which are carried through to the
light- independent reactions.
o
o
18. What is the name of the 5-carbon compound present in the Calvin cycle?
o
19. Define carboxylation and decarboxylation.
Stephen Taylor
Bandung International School
http://sciencevideos.wordpress.com
Essential Biology 3.8 8.2 C4 Photosynthesis Core, AHL, OpC
Student Name:
Due Date:
Candidate Number: 002171-
20. In the space below, draw a diagram to explain the cycle of reactions that occur in the lightindependent stages of photosynthesis. Include carboxylation of RuBP to glycerate-3-phosphate
by rubisco, reduction to triose phosphate, formation of glucose phosphate and reformation of
RuBP.
A limiting factor is the one factor which is in shortest supply or is preventing the rate of a reaction from
increasing. If this factor were increased, rate of reaction would increase until another plateau was
reached (a different factor is then limiting).
21. Explain how the following factors can limit the rate of photosynthesis of green plants:
(give reasons specific to the reactions of photosynthesis)
Factor
Carbon dioxide concentration
Which stages of photosynthesis are limited and how?
Low CO2 means less carbon can be fixed from the atmosphere in the
Calvin cycle. Output of glucose is reduced and RuBP builds up.
Light intensity
Temperature
Stephen Taylor
Bandung International School
http://sciencevideos.wordpress.com
Essential Biology 3.8 8.2 C4 Photosynthesis Core, AHL, OpC
Student Name:
Due Date:
Candidate Number: 002171-
22. Using the graph below, deduce, with reasons, the most important limiting factor in the
rate of photosynthesis of this green plant.
23. Compare photosynthesis and respiration.
Take time to think about all the connections – reactions, structures, products and processes.
Cell Respiration
Photosynthesis
Similarities
Differences
Stephen Taylor
Bandung International School
http://sciencevideos.wordpress.com
Essential Biology 3.8 8.2 C4 Photosynthesis Core, AHL, OpC
Student Name:
Due Date:
Candidate Number: 002171-
Works Cited
1. IBO. Biology Subject Guide. [Online] 2007. http://xmltwo.ibo.org/publications/migrated/productionapp2.ibo.org/publication/7/part/2/chapter/1.html.
2. Allott, Andrew. IB Study Guide: Biology for the IB Diploma. s.l. : Oxford University Press, 2007. 978-019-915143-1.
3. Mindorff, D and Allott, A. Biology Course Companion. Oxford : Oxford University Press, 2007. 978099151240.
4. Clegg, CJ. Biology for the IB Diploma. London : Hodder Murray, 2007. 978-0340926529.
5. Campbell N., Reece J., Taylor M., Simon. E. Biology Concepts and Connections. San Fransisco :
Pearson Benjamin Cummings, 2006. 0-8053-7160-5.
6. Taylor, Stephen. Science Video Resources. [Online] Wordpress, 2010.
http://sciencevideos.wordpress.com.
7. Burrell, John. Click4Biology. [Online] 2010. http://click4biology.info/.
Self Assessment:
Essential Biology
Criterion
Presentation &
Organisation
Academic
Honesty
Objective 1
understanding
Objective 2
understanding
Objective3
understanding
Logic, notation,
mathematical
working
Further research
Assessment
Complete (2)
Partially complete (1)
NA
Complete and neat. All command terms
highlighted, tables and diagrams well presented.
Self
Sources cited using the CSE (ISO 690 numerical)
method, with Works Cited section complete and
correct.
All answers for the following command terms
Most answers for the following command terms
correct:
correct:
Define
Draw
Label
List
Measure State
Most answers for the following command terms
All answers for the following command terms correct:
correct:
Annotate Apply
Calculate Describe Distinguish Estimate Identify
Outline
Most answers for the following command terms
All answers for the following command terms correct:
correct:
Analyse Comment Compare Construct Deduce Derive Design Determine Discuss
Evaluate
Explain Predict
Show Solve
Sketch Suggest
Answers are presented in a logical and concise
manner. SI units used most times, with correct
NA
unit symbols and definitions of terms. All
mathematical working shown.
Evidence is apparent of research and reading
beyond the textbook and presentations to find
correct answers to challenging questions. If any
NA
questions are unanswered, this criterion scores
zero.
NA
Total (max 10):
Stephen Taylor
Bandung International School
http://sciencevideos.wordpress.com
MrT