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SBI3U – Assigned Homework
Thursday, March 11, 2009 – Answer Sheet
Read Section 4.3, Protein Synthesis, pages 93 – 95.
Understand the following terms: protein synthesis
i:
transcription
messenger RNA
ii:
translation
transfer RNA
Label the following Figure:
What term is given to the
process occurring in the
Figure to the right?
View the following web pages:
http://instruct1.cit.cornell.edu/Courses/biomi290/MOVIES/CENTRALDOG.HTML
http://bass.bio.uci.edu/~hudel/bs99a/lecture20/lecture1_1.html
Answer Section 4.3 Review – page 95:
Understanding Concepts: 1, 2, 3, 4
Applying Inquiry/Communication Skills:
6
Read Section 4.4, Photosynthesis and Food Production, pages 95 – 97.
Understand the following terms: photosynthesis
Know the equation for (word and chemical)
chlorophyll
light-dependent reactions
light-independent reactions
What is essential for the light-dependent
reactions?
What is not essential for the light-independent
reactions?
State which reactions are labeled 1 and 2 and
give reasons why you labeled the diagram the
way you did:
autotrophs
heterotrophs
chemautotrophs
Answer Section 4.4 Review – page 97 and the questions that follow:
Understanding Concepts: 1, 2, 3, 4
1:
What do plants have the unique ability to do?
Read Section 4.5, Cellular Respiration, pages 98 – 101.
Understand the following terms: cellular respiration
the total number of ATPs produced and from what steps
glycolysis
where in the cell this process takes place
glucose – pyruvic acid
aerobic cellular respiration
where the majority of ATP is produced – name it
anaerobic cellular respiration understand why this process occurs (i.e.: in humans)
Label the following Figure:
lactic acid
lactic acid fermentation
alcoholic fermentation
Answer Section 4.5 Review – page 101 and the questions that follow:
Understanding Concepts: 1, 2, 3, 4, 6, 7
1:
Give the full name for ATP. What is ATP used for in the cell? What type of reactions
are these?
2:
When glucose is broken down, what type of reactions are these?
3:
How many ATPs are produced when glucose is converted to pyruvic acid? What is not required
in this step? Where in the cell does this step take place?
4:
Where in the cell does the second step of cellular respiration take place? How many ATPs are
produced in this step?
5:
How come prokaryotic cells do not use aerobic (presence of oxygen) cellular respiration?
6:
Write out the chemical equations for lactic acid fermentation and alcoholic fermentation.
How many ATP are produced using lactic acid fermentation or alcoholic fermentation?
How do these numbers compare to the number of ATPs produced using aerobic
cellular respiration?
CHAPTER 4 REVIEW
Understanding Concepts:
1 to 16, 20, 21, 22, 23
Applying Inquiry / Communication Skills:
26, 27, 29
Handouts (for this chapter):
Energy and ATP
Enzymes Review Sheet
Protein Synthesis Review Sheet
Photosynthesis and Cellular Respiration