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AQA Biology 5 - 23rd June 2015 - Essay: Predictions & Past Essays
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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
Just found this really useful resource from AQA, all the essay topics since 2007 with mark schemes attached. Link
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:
June 2011Show
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;
- 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
Spoiler:
June 2012Show
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;
- 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
Spoiler:
June 2013Show
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
- 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
Spoiler:
June 2014Show
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
- 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
Spoiler:
June 2015Show
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
- Photosynthesis
- Energy transferthrough ecosystems
- Food production
- Digestion (as infuel)
- Absorption (bycells)
- Mass transport
- Respiration
- ATP
- Stimuli andresponses
- Muscle contraction
- Nerve impulses
Spoiler:
June 2015 Original Paper: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
- 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
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
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To keep the thread tidy, here are some predictions:
These are taken from MrPollock's 2015 predictions video.
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:Show1) 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
- Importance of the movement of molecules in biological systemsSpoiler: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 - CO2Spoiler: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)
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#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.
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#5
(Original post by Sarcastic Goats)
To keep the thread tidy, here are some predictions:
These are taken from MrPollock's 2015 predictions video.
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
- Importance of the movement of molecules in biological systems
Posted from TSR Mobile
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#6
(Original post by ELCRE)
I thought mr pollock had not yet done a predictions video though?
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I thought mr pollock had not yet done a predictions video though?
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but I suppose they're still likely for this year
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#7
(Original post by ELCRE)
I thought mr pollock had not yet done a predictions video though?
Posted from TSR Mobile
I thought mr pollock had not yet done a predictions video though?
Posted from TSR Mobile
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#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
- Chromosome movement
- Neurones and synaptic vesicles
- Actin and myosin
- Movement through ER and Golgi
- Protein synthesis
- Electron transport chains
- Ion movement
0
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#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
- Carbon cycle
- Nutrient cycles
- Nitrogen cycles
- Photosynthesis makes glucose
- Balanced diets
- Foetus-placenta
- Xylem: water uptake by plants
-Digestion and absorption
1
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#10
Ions in organisms:
Spoiler:
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
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
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#11
I don't particularly like CO2 being involved in an essay title, there's relatively few topics to talk about
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(Original post by Serine Soul)
Ions in organisms:
Ions in organisms:
Spoiler:
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
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
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#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
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
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#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)
- 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
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#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.
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.
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#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 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
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#17
(Original post by hopingmedicinae)
I've got importance of shapes fitting together if that works for you
I've got importance of shapes fitting together if that works for you
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(Original post by Kings_queens)
How long should we spend on the essay?
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?
+ how much revision for unit 1 and 2 is everyone gonna do?
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