93' SBIOA Exam
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93
Exam Part A: M/C Part B: Short Answers Part C: Essay Question 94 Exam 95
Exam 97
Exam
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PART B:
SHORT ANSWER: Be quick. These are only
worth 3 marks each. Point
form is okay for this section - but I will not infer information. Answer of the fullscap paper.
Leave about 1/3 of a page if you need to skip a question.
Number each question. B1, B2, B3 etc. 1
.
How does physics (thermodynamics actually) apply to the study of
ecology?
2
. What four things
determine population growth rates?
3
. What are the
three sociological revolutions which co-incided with a large increase in
the human population?
4
. Explain
"sustainable" growth.
5
. Name the
different classes of amino acids. Which
would be found in the hydrophobic region of the cell membrane.
6
. Briefly describe
the chemi-osmotic hypothesis. Also
state to which organelles this idea applies.
7
. List 5 reduction
reactions.
8
. Respiration of
glucose is written as: C6H12O6
+ O2 _ CO2 + H2O.
a
. where in the
cell does the glucose first undergo reactions?
b
. where in the
cell is the O2 created?
c
. where in
the cell do the CO2's form?
9
.
In comparing cellular respiration to photosynthesis: [2 each]
a
. the ETC
equivalent is the:
b
. Krebs cycles
equivalent is the:
c
. NADH is
similar to:
10
.
For the reaction CH3CH2OH + NH3
_ CH3CH2NH2 + H2O, explain
in words how you would find the net energy liberated or required for the
reaction.
11
. Describe the
"wobble-base" phenomenom.
What does it have to do with the RNA codon chart?
<-Part A --- Part B --- Part C->
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