AQA Biology 5 - 23rd June 2015 - Essay: Predictions & Past Essays Watch

Sarcastic Goats
Badges: 3
Rep:
?
#1
Report Thread starter 2 years ago
#1
I thought a thread like this might help for the unit 5 essay coming. Post your predictions, and I will update this post. I'll also add previous essays later.

It'd be really helpful if, with your predictions, you include topics that could be written about it.

Previous Essays (Current Spec)
June 2010
Spoiler:
Show
Carbon dioxide may affect organisms directly or indirectly. Describe and explain these effects.
  • Pulmonary ventilation and the mechanism of breathing
  • Light-independent reaction of photosynthesis. Limiting factors
  • Role of chemoreceptors in controlling heart rate
  • Respiration, photosynthesis and human activity giving rise to short-term fluctuations and long-term change.
  • Yield of crop plants
  • Carbon cycle
  • Role of carbon dioxide in producing global warming;
  • Life cycles and number of insect pests;
  • Distribution of animals and plants;
  • Effect of temperature on enzymes;
The causes of disease in humans
  • Pathogens include bacteria, viruses and fungi
  • Pathogens cause disease by damaging cells and producing toxins
  • Cholera bacteria produce toxins resulting in diarrhoea
  • Symptoms and transmission of pulmonary tuberculosis
  • Horizontal gene transmission and MRSA
June 2011
Spoiler:
Show
Using DNA in science and technology
  • Structure of DNA
  • Differences in DNA lead to genetic diversity
  • Comparison of DNA base sequences
  • DNA hybridisation
  • Plasmids
  • The use of recombinant DNA to produce transformed organisms that benefit humans
  • Cell cycle and treatment of cancer
  • Gene therapy;
  • Medical diagnosis and the treatment of human disease;
  • The use of DNA probes to screen patients for clinically important genes;
A cycle is a biological pathway or process in which the end product of one cycle becomes the starting point for the next.Write an essay about cycles in biology.
  • Nutrient cycles
  • Carbon cycle
  • Nitrogen cycle
  • Enzyme action
  • Synthesis of ATP from ADP
  • Light-independent reaction
  • The Krebs cycle
  • The mechanism of breathing
  • The cardiac cycle
  • The cell cycle
  • Muscle contraction
  • Oestrous cycle
June 2012
Spoiler:
Show
The importance of shapes fitting together in cells and organisms
  • Enzyme properties and digestion
  • Protein structure
  • Plasma membrane structure and cell transport
  • Antigens, antibodies, B cells and T cells
  • Vaccines
  • Structure of DNA
  • DNA replication (not PCR)
  • Transcription and translation
  • Transcriptional factors, oestrogen, siRNA
  • Restriction enzymes
  • Haemoglobin
  • Action potentials & synaptic transmission
  • Muscle contraction
  • Control of blood glucose concentration
  • Control of mammalian oestrous cycle
How bacteria can affect the lives of humans and other organisms
  • Pathogens
  • Lactose intolerance
  • Cholera
  • Tuberculosis
  • Resistance to antibiotics
  • Carbon cycle
  • Nitrogen cycle
  • Eutrophication
  • Use of bacterial enzymese.g. restriction endonuclease, DNA polymerase for PCR
  • Use of bacterial plasmidse.g. in vivo gene cloning, genetically-modified crops, gene therapy
  • Use of bacteria to produce useful chemicals
June 2013
Spoiler:
Show
The membranes ofdifferent types of cells are involved in many different functions
  • Membrane function asselectively permeable barrier embranes
  • Transport mechanismsacross membranes
  • Absorption andco-transport of sodium ions and glucose
  • Photosynthesis,chloroplast, thylakoids
  • Respiration,mitochondrion and cristae
  • Protein secretion,RER, SER and Golgi
  • A Surfacereceptors/antigen and immune response
  • Cell division
  • Vertical andhorizontal transmission – membranes and bacteria
  • Pacinian corpuscle
  • Tropisms –movement of IAA
  • Nerveimpulses/action potentials
  • Synaptictransmission
  • Muscle contraction,calcium ion movement/storage
  • Hormones - eg Bloodglucose regulation – insulin and glucagon
  • Osmosis, includingwater movement in plants
There are manydifferent types of relationships and interactions between organisms.
  • Pathogens andeffects on host
  • Cholera
  • Taxonomy
  • Classification andevolution
  • Inheritance andevolution
  • Genetic code,universal
  • Behaviour
  • Populations andevolution, variation between individuals within a speciesRelationships within ecosystems – eg predator/prey
  • Energy transfer inecosystems
  • Nutrient cycles, theorganisms involved
  • Succession,biodiversity, species and individuals in a community
  • Human impacts on theenvironment and its effect on relationships between organisms –including farming
  • Gene technology andGMO and selective breeding
  • Antibioticresistance
June 2014
Spoiler:
Show
Cells and organismscarry out exchanges with their external environment to maintain theirinternal environment
  • Homeostasis (conceptof)
  • Digestion andabsorption
  • Cells
  • Lung function
  • Gas exchange
  • Passage of waterthrough plant
  • Nutrient cycles
  • Response to stimuli
  • Neurones
  • Temperature control
  • Tissue fluid and itsformation
  • Control of bloodglucose concentration
  • Negative feedback
  • Gene expression
How energy istransferred within and between organisms.
  • Photosynthesis
  • Energy transferthrough ecosystems
  • Food production
  • Digestion (as infuel)
  • Absorption (bycells)
  • Mass transport
  • Respiration
  • ATP
  • Stimuli andresponses
  • Muscle contraction
  • Nerve impulses
June 2015
Spoiler:
Show
The importance ofresponses to changes in the internal and external environment of anorganism
  • Transport in and outof cells (of specific substances)
  • Immune response
  • Haemoglobin
  • Transpiration –response to environmental factors – gas exchange in plants
  • Behaviour
  • Adaptation andselection
  • Changes inpopulations – selection pressures
  • Responses to stimuli– plants and tropisms – control of heart rate
  • Taxes and kineses
  • Receptors
  • Control of HeartRate
  • Simple reflexes andneurones and synapses
  • Hormones andresponses
  • Chemical mediators
  • Homeostasis –response to changes in internal environment
  • Feedback
  • Gene expression aspart of response
The importance tohumans of the control of growth, reproduction and development oforganisms, including themselves.
  • Pathogens (andinvasion of human tissues)
  • Antibioticresistance – control of bacterial growth
  • Cholera
  • Immune response andvaccination (to control growth of pathogens)
  • Human influence onbiodiversity
  • Human populations
  • Humans and farmingpractices – and selective breeding
  • Use of fertilisersand pesticides
  • Succession –control of
  • Genetics –prediction of inherited conditions
  • Control of geneexpression – stem cells
  • Regulation of geneexpression – prevention, treatment and cure of cancer – andmitosis and cancer
  • Gene cloning andtransfer
  • Gene therapy
June 2015 Original Paper:
Spoiler:
Show
  • The importance of proteins in the control of processes and responses in organisms
  • The causes and importance of variation and diversity in organisms

Just found this really useful resource from AQA, all the essay topics since 2007 with mark schemes attached. Link
1
reply
Sarcastic Goats
Badges: 3
Rep:
?
#2
Report Thread starter 2 years ago
#2
To keep the thread tidy, here are some predictions:

These are taken from MrPollock's 2015 predictions video.
  • Proteins (was on the original 2015 paper but they had to use the R paper instead)
  • Ions
    Spoiler:
    Show
    1) Co transport of glucose - Na+
    2) Na+/K+ in maintaining a resting potential and propagating an action potential across a neurone
    3) Ca2+ - synapses
    4) Ca2+ - muscle contraction
    5) Cl- - maintaining WP in lumen of small intestine (link to cholera)
    6) H+ - oxidative phosphorylation in aerobic respiration
    7) H+ - buffer system in blood, linked to nervous control of heart rate
    8) Mineral ions in plants - lower WP in root hair cell, promote water uptake
    9) Nitrate ions, phosphate ions - proteins, DNA
    10) Mg2+ - chlorophyll production
    11) K+ - cell maintenance
    12) Fe2+ - haemoglobin and transport of O2
  • DNA technology
  • CO2
  • ATP
Predictions from the general thread:
  • Importance of the movement of molecules in biological systems
    Spoiler:
    Show
    (Original post by Serine Soul)
    It's all just basically diffusion and active transport (and osmosis):1) Co-transport of sodium and glucose in small intestines - provide respiratory substrate2) Active transport of minerals into root hair cells and xylem in plants - promote water uptake3) Generally, gas exchange?4) Active transport of Na+/K+ to maintian resting potential in axon of neurone5) Diffusion of Na+/K+ and formation of an action potential and waves of depolarisation6) Active transport of Ca2+ ions into presynaptic neurone upon arrival of action potential7) Active transport of Ca2+ back into sarcoplasmic reticulum after muscle contraction to prevent loss of muscle control8) Diffusion of IAA and other growth factors in plants9) Osmosis, transpiration and cohesion tension theory for mass transport of water in plants
  • Movement inside cells.

    Spoiler:
    Show
    (Original post by cherrybanana)
    - Water movement in plants
    (Original post by cherrybanana)
    - Chromosome movement
    - Neurones and synaptic vesicles
    - Actin and myosin
    - Movement through ER and Golgi
    - Protein synthesis
    - Electron transport chains
    - Ion movement
  • The different ways in which living organisms obtain their nutrients.
    Spoiler:
    Show
    (Original post by cherrybanana)
    - Gas exchange
    (Original post by cherrybanana)
    - Carbon cycle
    - Nutrient cycles
    - Nitrogen cycles
    - Photosynthesis makes glucose
    - Balanced diets
    - Foetus-placenta
    - Xylem: water uptake by plants
    -Digestion and absorption
  • CO2
    Spoiler:
    Show
    (Original post by hopingmedicinae)
    -Affects breathing - could describe Biol1 how the body moves to remove Co2
    - Carbon Cycle
    - Differences in night time and day time
    - Climate change- effect on crops, animal species - distribution of animal species
    - Light independant reaction
    - Co2 and chemoreceptors
    -Haemoglobin and Bohr Shift
    - Agricultural farming - greenhouse conditions e.g burn propane to form Co2
    - limiting factor in CO2
    - causes of increase, agriculture, deforestation (getting rid of carbon sinks, photosynthesising biomass)
3
reply
Ordo
Badges: 14
Rep:
?
#3
Report 2 years ago
#3
charlie2466
0
reply
hopingmedicinae
Badges: 4
Rep:
?
#4
Report 2 years ago
#4
Good idea for this thread, hey would anyone want to do an essay swap - i need one on the causes and importance of variation and diversity in organisms as that's the one i haven't yet done.
0
reply
ELCRE
Badges: 2
Rep:
?
#5
Report 2 years ago
#5
(Original post by Sarcastic Goats)
To keep the thread tidy, here are some predictions:

These are taken from MrPollock's 2015 predictions video.
  • Proteins (was on the original 2015 paper but they had to use the R paper instead)
  • Ions
  • DNA technology
  • CO2
  • ATP
Predictions from the general thread:
  • Importance of the movement of molecules in biological systems
I thought mr pollock had not yet done a predictions video though?


Posted from TSR Mobile
0
reply
charlie2466
Badges: 11
Rep:
?
#6
Report 2 years ago
#6
(Original post by ELCRE)
I thought mr pollock had not yet done a predictions video though?


Posted from TSR Mobile
He hasn't, these were his predictions for last year but I suppose they're still likely for this year
0
reply
cherrybanana
Badges: 2
Rep:
?
#7
Report 2 years ago
#7
(Original post by ELCRE)
I thought mr pollock had not yet done a predictions video though?


Posted from TSR Mobile
These are from last year
0
reply
cherrybanana
Badges: 2
Rep:
?
#8
Report 2 years ago
#8
Movement inside cells.
Spoiler:
Show
- Water movement in plants
- Chromosome movement
- Neurones and synaptic vesicles
- Actin and myosin
- Movement through ER and Golgi
- Protein synthesis
- Electron transport chains
- Ion movement
0
reply
cherrybanana
Badges: 2
Rep:
?
#9
Report 2 years ago
#9
The different ways in which living organisms obtain their nutrients.
Spoiler:
Show
- Gas exchange
- Carbon cycle
- Nutrient cycles
- Nitrogen cycles
- Photosynthesis makes glucose
- Balanced diets
- Foetus-placenta
- Xylem: water uptake by plants
-Digestion and absorption
1
reply
Serine Soul
Badges: 18
#10
Report 2 years ago
#10
Ions in organisms:

Spoiler:
Show


1) Co transport of glucose - Na+
2) Na+/K+ in maintaining a resting potential and propagating an action potential across a neurone
3) Ca2+ - synapses
4) Ca2+ - muscle contraction
5) Cl- - maintaining WP in lumen of small intestine (link to cholera)
6) H+ - oxidative phosphorylation in aerobic respiration
7) H+ - buffer system in blood, linked to nervous control of heart rate
8) Mineral ions in plants - lower WP in root hair cell, promote water uptake
9) Nitrate ions, phosphate ions - proteins, DNA
10) Mg2+ - chlorophyll production
11) K+ - cell maintenance
12) Fe2+ - haemoglobin and transport of O2

reply
Serine Soul
Badges: 18
#11
Report 2 years ago
#11
I don't particularly like CO2 being involved in an essay title, there's relatively few topics to talk about
reply
Sarcastic Goats
Badges: 3
Rep:
?
#12
Report Thread starter 2 years ago
#12
(Original post by Serine Soul)
Ions in organisms:
Spoiler:
Show


1) Co transport of glucose - Na+
2) Na+/K+ in maintaining a resting potential and propagating an action potential across a neurone
3) Ca2+ - synapses
4) Ca2+ - muscle contraction
5) Cl- - maintaining WP in lumen of small intestine (link to cholera)
6) H+ - oxidative phosphorylation in aerobic respiration
7) H+ - buffer system in blood, linked to nervous control of heart rate
8) Mineral ions in plants - lower WP in root hair cell, promote water uptake
9) Nitrate ions, phosphate ions - proteins, DNA
10) Mg2+ - chlorophyll production
11) K+ - cell maintenance
12) Fe2+ - haemoglobin and transport of O2

Added this. I think people expected this to be on the normal paper but since it was leaked I'm guessing we'll get different titles
0
reply
Serine Soul
Badges: 18
#13
Report 2 years ago
#13
(Original post by Sarcastic Goats)
Added this. I think people expected this to be on the normal paper but since it was leaked I'm guessing we'll get different titles
I might go up and kiss an invigilator if it does come up on the exam though :')
reply
hopingmedicinae
Badges: 4
Rep:
?
#14
Report 2 years ago
#14
Co2
Spoiler:
Show
-Affects breathing - could describe Biol1 how the body moves to remove Co2
- Carbon Cycle
- Differences in night time and day time
- Climate change- effect on crops, animal species - distribution of animal species
- Light independant reaction
- Co2 and chemoreceptors
-Haemoglobin and Bohr Shift
- Agricultural farming - greenhouse conditions e.g burn propane to form Co2
- limiting factor in CO2
- causes of increase, agriculture, deforestation (getting rid of carbon sinks, photosynthesising biomass)
0
reply
12284
Badges: 8
Rep:
?
#15
Report 2 years ago
#15
(Original post by hopingmedicinae)
Good idea for this thread, hey would anyone want to do an essay swap - i need one on the causes and importance of variation and diversity in organisms as that's the one i haven't yet done.
i can swap with you! I've done an essay on importance of variation and diversity, which ones have you done that you can swap with me?
0
reply
hopingmedicinae
Badges: 4
Rep:
?
#16
Report 2 years ago
#16
(Original post by 12284)
i can swap with you! I've done an essay on importance of variation and diversity, which ones have you done that you can swap with me?

I've got importance of shapes fitting together if that works for you
0
reply
12284
Badges: 8
Rep:
?
#17
Report 2 years ago
#17
(Original post by hopingmedicinae)
I've got importance of shapes fitting together if that works for you
Ok! do you want to PM your email address so we can send each others' essays?
0
reply
Kings_queens
Badges: 8
Rep:
?
#18
Report 2 years ago
#18
How long should we spend on the essay?
0
reply
Kings_queens
Badges: 8
Rep:
?
#19
Report 2 years ago
#19
+ how much revision for unit 1 and 2 is everyone gonna do?
0
reply
Sarcastic Goats
Badges: 3
Rep:
?
#20
Report Thread starter 2 years ago
#20
(Original post by Kings_queens)
How long should we spend on the essay?
(Original post by Kings_queens)
+ how much revision for unit 1 and 2 is everyone gonna do?
AQA advise no longer than 40 minutes, probably just a quick recap.
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • University of Roehampton
    Department of Media, Culture and Language; School of Education; Business School Undergraduate
    Tue, 19 Feb '19
  • Edge Hill University
    Undergraduate and Postgraduate - Campus Tour Undergraduate
    Tue, 19 Feb '19
  • University of Kent
    Sciences, Social Sciences and Humanities Further education
    Tue, 19 Feb '19

Do you give blood?

Yes (66)
8.05%
I used to but I don't now (23)
2.8%
No, but I want to start (303)
36.95%
No, I am unable to (203)
24.76%
No, I chose not to (225)
27.44%

Watched Threads

View All
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise