SlideShare a Scribd company logo
1 of 1
Download to read offline
8. Compare your observations and R values with those of your classmates. Identify sources of
error in this investigation that might account for any differences. (2 marks)
9a. Is chlorophyll the dominant pigment in the spinach leaf? (1 mark)
b. How can you tell? (1 mark)
yes/no
c. What other pigments were present? Why are they not visible except on chromatography
paper? (2 marks)
d. Why is it necessary to have variety of pigments in a leaf (1 mark)
10a. Why does the solvent travel up the chromatography paper? (1 mark)
b. Explain why the pigments separate as the solvent moves up the paper? (1 mark)
c. Which pigment is (a) most soluble and (b) least soluble in the solvent? Explain how you
decided. (3 marks)
11. Leaves in Ontario change color in the fall. However, leaves in Florida do not change color in
the fall. Why is this so?
(Hint: Think of a difference between the two locations that might act as a trigger for leaves to
change color in the fall.) 3 marks)

More Related Content

More from ambikametalstores197

A conceptual action model for environmental water pollution is a use.pdf
A conceptual action model for environmental water pollution is a use.pdfA conceptual action model for environmental water pollution is a use.pdf
A conceptual action model for environmental water pollution is a use.pdf
ambikametalstores197
 
A collection of financial assets and securities is referred to as a .pdf
A collection of financial assets and securities is referred to as a .pdfA collection of financial assets and securities is referred to as a .pdf
A collection of financial assets and securities is referred to as a .pdf
ambikametalstores197
 

More from ambikametalstores197 (18)

802.11 transmission is complicated by wireless conditions that vary .pdf
802.11 transmission is complicated by wireless conditions that vary .pdf802.11 transmission is complicated by wireless conditions that vary .pdf
802.11 transmission is complicated by wireless conditions that vary .pdf
 
8.2 MurderGregory O. Wilson, who had been arguing earlier in the d.pdf
8.2 MurderGregory O. Wilson, who had been arguing earlier in the d.pdf8.2 MurderGregory O. Wilson, who had been arguing earlier in the d.pdf
8.2 MurderGregory O. Wilson, who had been arguing earlier in the d.pdf
 
8. De las siguientes funciones, el prop�sito principal del ARN es .pdf
8. De las siguientes funciones, el prop�sito principal del ARN es .pdf8. De las siguientes funciones, el prop�sito principal del ARN es .pdf
8. De las siguientes funciones, el prop�sito principal del ARN es .pdf
 
A conceptual action model for environmental water pollution is a use.pdf
A conceptual action model for environmental water pollution is a use.pdfA conceptual action model for environmental water pollution is a use.pdf
A conceptual action model for environmental water pollution is a use.pdf
 
8. a) (3 pts) In 1803 approximately 30 sheep were introduced to the .pdf
8. a) (3 pts) In 1803 approximately 30 sheep were introduced to the .pdf8. a) (3 pts) In 1803 approximately 30 sheep were introduced to the .pdf
8. a) (3 pts) In 1803 approximately 30 sheep were introduced to the .pdf
 
A company purchased merchandise for $4,000, on Feb 10, at the FOB sh.pdf
A company purchased merchandise for $4,000, on Feb 10, at the FOB sh.pdfA company purchased merchandise for $4,000, on Feb 10, at the FOB sh.pdf
A company purchased merchandise for $4,000, on Feb 10, at the FOB sh.pdf
 
A company manufactures, sells, and distributes a single product to i.pdf
A company manufactures, sells, and distributes a single product to i.pdfA company manufactures, sells, and distributes a single product to i.pdf
A company manufactures, sells, and distributes a single product to i.pdf
 
8,705 University of California students were surveyed in Spring 2015.pdf
8,705 University of California students were surveyed in Spring 2015.pdf8,705 University of California students were surveyed in Spring 2015.pdf
8,705 University of California students were surveyed in Spring 2015.pdf
 
A company is planning to decrease the level of debt in their capital.pdf
A company is planning to decrease the level of debt in their capital.pdfA company is planning to decrease the level of debt in their capital.pdf
A company is planning to decrease the level of debt in their capital.pdf
 
A company has the following assets in an asset group Land $225,000.pdf
A company has the following assets in an asset group Land $225,000.pdfA company has the following assets in an asset group Land $225,000.pdf
A company has the following assets in an asset group Land $225,000.pdf
 
A company has the following assets in a CGU Land $125,000 Building.pdf
A company has the following assets in a CGU Land $125,000 Building.pdfA company has the following assets in a CGU Land $125,000 Building.pdf
A company has the following assets in a CGU Land $125,000 Building.pdf
 
A collection of financial assets and securities is referred to as a .pdf
A collection of financial assets and securities is referred to as a .pdfA collection of financial assets and securities is referred to as a .pdf
A collection of financial assets and securities is referred to as a .pdf
 
A communication link transmits binary characters, (0, 1). There is a.pdf
A communication link transmits binary characters, (0, 1). There is a.pdfA communication link transmits binary characters, (0, 1). There is a.pdf
A communication link transmits binary characters, (0, 1). There is a.pdf
 
A client is admitted to the surgical intensive care unit following t.pdf
A client is admitted to the surgical intensive care unit following t.pdfA client is admitted to the surgical intensive care unit following t.pdf
A client is admitted to the surgical intensive care unit following t.pdf
 
A business model describes... Choose one or more answers. Group of a.pdf
A business model describes... Choose one or more answers. Group of a.pdfA business model describes... Choose one or more answers. Group of a.pdf
A business model describes... Choose one or more answers. Group of a.pdf
 
851560610.pdf
851560610.pdf851560610.pdf
851560610.pdf
 
9) The effect of grafting an extra piece of notochord into a dorsal .pdf
9) The effect of grafting an extra piece of notochord into a dorsal .pdf9) The effect of grafting an extra piece of notochord into a dorsal .pdf
9) The effect of grafting an extra piece of notochord into a dorsal .pdf
 
A bowl of noodles is placed at the center of the table along with fi.pdf
A bowl of noodles is placed at the center of the table along with fi.pdfA bowl of noodles is placed at the center of the table along with fi.pdf
A bowl of noodles is placed at the center of the table along with fi.pdf
 

Recently uploaded

1029-Danh muc Sach Giao Khoa khoi 6.pdf
1029-Danh muc Sach Giao Khoa khoi  6.pdf1029-Danh muc Sach Giao Khoa khoi  6.pdf
1029-Danh muc Sach Giao Khoa khoi 6.pdf
QucHHunhnh
 

Recently uploaded (20)

Grant Readiness 101 TechSoup and Remy Consulting
Grant Readiness 101 TechSoup and Remy ConsultingGrant Readiness 101 TechSoup and Remy Consulting
Grant Readiness 101 TechSoup and Remy Consulting
 
ICT Role in 21st Century Education & its Challenges.pptx
ICT Role in 21st Century Education & its Challenges.pptxICT Role in 21st Century Education & its Challenges.pptx
ICT Role in 21st Century Education & its Challenges.pptx
 
Ecological Succession. ( ECOSYSTEM, B. Pharmacy, 1st Year, Sem-II, Environmen...
Ecological Succession. ( ECOSYSTEM, B. Pharmacy, 1st Year, Sem-II, Environmen...Ecological Succession. ( ECOSYSTEM, B. Pharmacy, 1st Year, Sem-II, Environmen...
Ecological Succession. ( ECOSYSTEM, B. Pharmacy, 1st Year, Sem-II, Environmen...
 
Energy Resources. ( B. Pharmacy, 1st Year, Sem-II) Natural Resources
Energy Resources. ( B. Pharmacy, 1st Year, Sem-II) Natural ResourcesEnergy Resources. ( B. Pharmacy, 1st Year, Sem-II) Natural Resources
Energy Resources. ( B. Pharmacy, 1st Year, Sem-II) Natural Resources
 
ICT role in 21st century education and it's challenges.
ICT role in 21st century education and it's challenges.ICT role in 21st century education and it's challenges.
ICT role in 21st century education and it's challenges.
 
Z Score,T Score, Percential Rank and Box Plot Graph
Z Score,T Score, Percential Rank and Box Plot GraphZ Score,T Score, Percential Rank and Box Plot Graph
Z Score,T Score, Percential Rank and Box Plot Graph
 
microwave assisted reaction. General introduction
microwave assisted reaction. General introductionmicrowave assisted reaction. General introduction
microwave assisted reaction. General introduction
 
Python Notes for mca i year students osmania university.docx
Python Notes for mca i year students osmania university.docxPython Notes for mca i year students osmania university.docx
Python Notes for mca i year students osmania university.docx
 
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
 
On National Teacher Day, meet the 2024-25 Kenan Fellows
On National Teacher Day, meet the 2024-25 Kenan FellowsOn National Teacher Day, meet the 2024-25 Kenan Fellows
On National Teacher Day, meet the 2024-25 Kenan Fellows
 
Asian American Pacific Islander Month DDSD 2024.pptx
Asian American Pacific Islander Month DDSD 2024.pptxAsian American Pacific Islander Month DDSD 2024.pptx
Asian American Pacific Islander Month DDSD 2024.pptx
 
ComPTIA Overview | Comptia Security+ Book SY0-701
ComPTIA Overview | Comptia Security+ Book SY0-701ComPTIA Overview | Comptia Security+ Book SY0-701
ComPTIA Overview | Comptia Security+ Book SY0-701
 
1029-Danh muc Sach Giao Khoa khoi 6.pdf
1029-Danh muc Sach Giao Khoa khoi  6.pdf1029-Danh muc Sach Giao Khoa khoi  6.pdf
1029-Danh muc Sach Giao Khoa khoi 6.pdf
 
Unit-V; Pricing (Pharma Marketing Management).pptx
Unit-V; Pricing (Pharma Marketing Management).pptxUnit-V; Pricing (Pharma Marketing Management).pptx
Unit-V; Pricing (Pharma Marketing Management).pptx
 
Holdier Curriculum Vitae (April 2024).pdf
Holdier Curriculum Vitae (April 2024).pdfHoldier Curriculum Vitae (April 2024).pdf
Holdier Curriculum Vitae (April 2024).pdf
 
INDIA QUIZ 2024 RLAC DELHI UNIVERSITY.pptx
INDIA QUIZ 2024 RLAC DELHI UNIVERSITY.pptxINDIA QUIZ 2024 RLAC DELHI UNIVERSITY.pptx
INDIA QUIZ 2024 RLAC DELHI UNIVERSITY.pptx
 
Micro-Scholarship, What it is, How can it help me.pdf
Micro-Scholarship, What it is, How can it help me.pdfMicro-Scholarship, What it is, How can it help me.pdf
Micro-Scholarship, What it is, How can it help me.pdf
 
Unit-IV- Pharma. Marketing Channels.pptx
Unit-IV- Pharma. Marketing Channels.pptxUnit-IV- Pharma. Marketing Channels.pptx
Unit-IV- Pharma. Marketing Channels.pptx
 
Advanced Views - Calendar View in Odoo 17
Advanced Views - Calendar View in Odoo 17Advanced Views - Calendar View in Odoo 17
Advanced Views - Calendar View in Odoo 17
 
Sociology 101 Demonstration of Learning Exhibit
Sociology 101 Demonstration of Learning ExhibitSociology 101 Demonstration of Learning Exhibit
Sociology 101 Demonstration of Learning Exhibit
 

8. Compare your observations and R values with those of your class.pdf

  • 1. 8. Compare your observations and R values with those of your classmates. Identify sources of error in this investigation that might account for any differences. (2 marks) 9a. Is chlorophyll the dominant pigment in the spinach leaf? (1 mark) b. How can you tell? (1 mark) yes/no c. What other pigments were present? Why are they not visible except on chromatography paper? (2 marks) d. Why is it necessary to have variety of pigments in a leaf (1 mark) 10a. Why does the solvent travel up the chromatography paper? (1 mark) b. Explain why the pigments separate as the solvent moves up the paper? (1 mark) c. Which pigment is (a) most soluble and (b) least soluble in the solvent? Explain how you decided. (3 marks) 11. Leaves in Ontario change color in the fall. However, leaves in Florida do not change color in the fall. Why is this so? (Hint: Think of a difference between the two locations that might act as a trigger for leaves to change color in the fall.) 3 marks)