ATAR Notes: Forum
Uni Stuff => Universities - New South Wales => Australian National University => Topic started by: Toothpaste on June 18, 2008, 01:01:24 pm
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VCE Biology Unit 3 Exam 2008
Section A - Multiple Choice
Consider the following plant cell.
(http://i148.photobucket.com/albums/s4/Toothpick00/P160608_2026-1.jpg)
Question 1
A process occurring at structure W in this plant cell would be
A packaging of molecules
B aerobic respiration
C protein synthesis
D DNA replication
Question 2
In this plant cell, the light-dependent reactions of photosynthesis occur in structure
A N
B M
C Q
D P
Question 3
The secondary structure of a protein is represented by
(http://i148.photobucket.com/albums/s4/Toothpick00/P160608_2027.jpg)
Question 4
The four main types of biomacromolecules in a cell are
A monomers, polymers, DNA and RNA
B proteins, carbohydrates, DNA and RNA
C nucleic acids, proteins, carbohydrates and lipids
D monosaccharides, disaccharides, polysachharides and proteins
Question 5
The enzyme maltase catalyses the breakdown of maltose into glucose.
Maltase was added to a tube containing a solution of maltose in water and incubated at 37 degrees Celcius. The amount of glucose produced was monitored over a period of time. No maltose remained in the end.
(http://i148.photobucket.com/albums/s4/Toothpick00/P160608_202701.jpg)
D
Question 6
The following graph shows the relationship between light intensity and net oxygen uptake or output by a particular green plant.
At a light intensity of 10 units
A the rate of photosynthesis is zero
B the rate of aerobic respiration is zero
C oxygen produced by photosynthesis is equal to the oxygen sed by aerobic respiration
D oxygen produced by photosynthesis is equal to twice the oxygen used by aerobic respiration
Question 7
Glycogen is
A a polysaccharide found in animal cells
B an energy-storing lipid molecule
C a molecule in which plants store sugars
D a polysaccharide found in plant cell walls
Question 8
Lipids characteristically
A are hydrophobic
B catalyse reactions
C have low energy content
D are information-storage molecules
Question 9
The lymphatic system
A controls blood clotting
B contains red blood cells
C has vessels with thick muscular walls
D contains phagocytic cells
Question 10
In a multicellular organism, the term 'internal environment refers to the
A cytoplasm
B cell organelles
C nuclear regions
D extracellular fluid
Question 11
The following diagram shows a synapse betwee two neurons.
(http://i148.photobucket.com/albums/s4/Toothpick00/P160608_2029.jpg)
The arrows X, Y and Z point respectively to a
A pre-synaptic terminal, a Golgi body and acetylcholine
B pre-synaptic terminal, a vesicle and a neurotransmitter
C post-synaptic terminal, a vauole and a neurotransmitter
D post-synaptic terminal, a mitochondrion and acetylcholine
Question 12
Insulin is a complex protein that is said to have a quaternary structure
This means that insulin
A cannot be denatured
B lacks disulfide bridges
C contains all the known amino acids
D has more than one polypeptide chain
Question 13
First-line defences that mammals have against invasion by disease-causing bacteria include
A lysozymes
B interferon
C antibodies
D killer T cells
Question 14
Diptheria is a disease caused by the bacterium Corynebacterium dephtheriae.
A six-month old baby boy, whose mother and father both had diptheria as children, will develop active immunity against diptheria if he
A is being breast fed
B receives a blood transfusion from the father
C receives an injection of dead diptheria bacteria
D receives injection of gamma globulin from the mother
Question 15
Facilitated diffusion is a form of cell transport that
A moves oxygen and carbon dioxide across membranes
B occurs against a concentration gradient
C requires specific protein channels
D uses energy supplied by ATP
(Questions 16 and 17) The following diagram shows a cross section through an influenza virus.
(http://i148.photobucket.com/albums/s4/Toothpick00/P160608_202901.jpg)
Question 16
The part of the virus labelled R is its
A antigenic marker
B lipid envelope
C protein coat
D viral genome
Question 17
A typical characteristic of such a virus is that it
A is destroyed by antibiotics
B releases toxins into the body of the host
C evades detection by the host's immune system
D manipulates the host cell's DNA to procude copies of itself
Question 18
Sucrose (cane sugar) is a disaccharide used by plants as a transport molecule. Sucrose is formed in the following reaction
glucose + fructose [enzyme]---> sucrose
With reference to this process it can be stated that
A glucose and fructose are polysaccharides
B the production of sucrose is an endergonic reaction
C sucrose is a reactant and glucose is a product of the reaction
D a molecule of fructose contains more stored energy than a molecule of sucrose
Question 19
Activation energy in a biological reaction
A increases in the prescence of an enzyme
B increases with an increase n temperature
C is the energy required to start the reaction
D is involved in the formation of complex molecules only
Question 20
<insert text cbf typing>
(http://i148.photobucket.com/albums/s4/Toothpick00/P160608_202902.jpg)
From the graph you can conclude that
A water is more lipid-soluble than alcohol
B a cell gets rid of urea more slowly than excess water
C drugs like alcohol and codeine enter cells more slowly than ethylene glycol
D ethyene glycol passes through the plasma membrane more easily than diethylurea
Question 21
With regard to the pathogen, we can conclude that
A the person has a deficient immune response
B the virulence of the pathogen increased between the 1st and 2nd exposures
C antibodies are only produced after a second exposure to the pathogen
D memory cells for antibodies against the pathogen exist at the time of the second exposure
Question 22
<insert pic>
A
B
C
D
Question 23
A increased production of PTH results in reduction of vitamin D activation
B reduced production of PTH results in increased calcium in faeces
C sustained overproduction of PTH results in strengthed bones
D high levels of blood calcium stimulate release of PTH
Question 24
(http://i148.photobucket.com/albums/s4/Toothpick00/P160608_203102.jpg)
Signal transduction is represented by stage
A 1
B 2
C 3
D 4
Question 25
<insert huge block of text>
The advice is likely to include directions to
A keep swimming pools free of chlorine
B stock any garden pool with fish that eat mosquito larvae
C keep windows and doors open and uncovered to allow airflow
D keep well away from animals that may have been bitten by mosquitoes
(http://i148.photobucket.com/albums/s4/Toothpick00/sectionB_1.jpg)
(http://i148.photobucket.com/albums/s4/Toothpick00/sectionB_2.jpg)
(http://i148.photobucket.com/albums/s4/Toothpick00/sectionB_3.jpg)
(http://i148.photobucket.com/albums/s4/Toothpick00/sectionB_4.jpg)
(http://i148.photobucket.com/albums/s4/Toothpick00/sectionB_5.jpg)
(http://i148.photobucket.com/albums/s4/Toothpick00/sectionB_6.jpg)
(http://i148.photobucket.com/albums/s4/Toothpick00/sectionB_7.jpg)
(http://i148.photobucket.com/albums/s4/Toothpick00/sectionB_8.jpg)
(http://i148.photobucket.com/albums/s4/Toothpick00/sectionB_9.jpg)
(http://i148.photobucket.com/albums/s4/Toothpick00/sectionB_10.jpg)
(http://i148.photobucket.com/albums/s4/Toothpick00/sectionB_11.jpg)
(http://i148.photobucket.com/albums/s4/Toothpick00/sectionB_12.jpg)
(http://i148.photobucket.com/albums/s4/Toothpick00/sectionB_13.jpg)
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Nice work getting the exam!
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wow! thanks heaps for that! so impressive nice work!!!
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what is the cutoff mark for this exam for A+???
was it easy or hard? some questions were ambigious; Q1 esp.
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what is the cutoff mark for this exam for A+???
It varies from year to year depending on the cohort's performance. I'd say it will lie closer to 2007's cut-off than 2006's one ...
2007: 121/150
http://www.vcaa.vic.edu.au/vce/statistics/2007/section3/vce_biology_ga07.pdf
2006: 108/150 (first year of the "new and revised" biology course)
http://www.vcaa.vic.edu.au/vce/statistics/2006/gradeassess/vce_biology_ga06.pdf
was it easy or hard? some questions were ambigious; Q1 esp.
Hmmm ... I thought it was straightforward (excluding Q1 :P) and easier than previous years, but opinions vary I guess.
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Thanks a lot for posting this :)
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so you can loose close 2 30 marks n still get an A+? thats comforting
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so you can loose close 2 30 marks n still get an A+? thats comforting
That's after doubling.
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pls explain? soz
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pls explain? soz
The exam is out of 75.
After doubling, it's out of 150.
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As in you can only lose ~15 marks on the actual exam. However, VCAA releases scores after doubling (150)
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thnx-
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How much time was given to complete the exam?