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    Can you get the foundation one plzz
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    (Original post by RachJess4)
    Wasn't it cardiac output rather than caloric?
    Yes thank you, I knew it began with a c.
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    (Original post by James99891)
    Can you get the foundation one plzz
    I don't have access the papers and I'm doing higher, so sorry I can't.
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    Marks don't add up to 60. They only add up to 56, so 4 marks are missing.
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    (Original post by Conor1998)
    Pretty confident that would be a solid 5 or 6/6 tbh. I did the same only using quadrats, my teacher said id lose marks for using the quadrat but the rest was grand
    Great
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    (Original post by EllaFetter)
    Anyone else scared?
    yep, based on that mark scheme i got about 35 marks which is way lower than what i was expecting, I'm so upset
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    Hey if you did not say that the species were isolated , would you get 0 marks on that question?
    Because i included all of the other points apart from that. Didn't think it was need in a 4 marker...
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    (Original post by varun1212)
    Hey if you did not say that the species were isolated , would you get 0 marks on that question?
    Because i included all of the other points apart from that. Didn't think it was need in a 4 marker...
    You would get three marks.
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    (Original post by sampitman)
    You would get three marks.
    Oh all right thanks, that seems fair enough then
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    Would you be able to get this for the Edexcel Additional Science exams? Thanks
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    (Original post by joseph.luke10)
    Did you do Biology 3 or FurtherAdditional 2? (B3HP or FA2HP) because there weee some slight differences in questions
    I did AQA B3HP, just normal higher triple science, but so did the other people I was talking to as far as I am aware
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    (Original post by neon_reaper)
    Updated for better presentation --- There are definitely some questions missing from 2 and 3, can anyone remember them?

    Question 1 [9]
    Spoiler:
    Show
    • What are lipids broken down into? [1]
    Glycerol (Tick Box)

    • Two control variables [2]
    Time interval of 2 minutes, volume of milk/water/bile/lipase solution

    • Where is lipase produced? [1]
    Pancreas, small intestine

    • Why did the pH decrease? [2]
    The milk was digested into fatty acid and glycerol, so the fatty acid reduced the pH

    • What evidence is there that bile helped the lipase? [1]
    The pH dropped faster with bile than with water

    • Why did they both end up on the same pH? [2]
    All of the fat in the milk had been digested so the same volume of fatty acid had been produced in each beaker, therefore they ended on the same pH which could not go any lower as no more fatty acid could be produced
    Question 2 [6]
    Spoiler:
    Show
    • Tape Measure, Light Intensity Meter and Ruler Question - The tape measure would be used as a transect line from the light area to the dark area to measure the distribution. At regular intervals such as every 2m, measure the length of the ivy leaves near to the transect using the ruler (measure from the same points on each leaf to keep results valid). Also measure the light intensity using the light meter. Repeat this at every interval and the results can then be used to test the hypothesis. To makethe results more valid, the transect can be done 3 times in different areas to increase the sample size
    Question 3 [6]
    Spoiler:
    Show
    • Runners question - you had to look at the graphs at the values for the runner at the very end of the exercise and put the values into the box [2?]

    • Main reason runner 1 had a higher cardiac output? [?]
    Person 2 had a much lower stroke rate (volume of blood leaving heart)

    • Explain why Runner 1 could run faster [4]
    His heart rate and the amount of blood being pumped was higher, so more oxygen and glucose could get to the muscle cells so they could do more respiration and would therefore have more energy, allowing them to contract and relax more to bring about more movement, therefore he was able to run faster
    Question 4 [10]
    Spoiler:
    Show
    • Where is DNA found in a cell? [2]
    In the nucleus, wound up tightly as chromosomes

    When a cell undergoes mitosis and splits, the two daughter cells have the same genetic material, explain how [2]
    Chromosomes duplicate before cell splits, so each daughter cell receives the same, full set of chromosomes

    • A plant needs energy to make glucose. Where does it get this energy from? [2]
    It gets the energy from the sun in the form of light: the chlorophyll in the mesophyll cells traps the light. (No idea what gains the second mark)

    • What does a plant use glucose for other than respiration? [4?]
    Cellulose, stored as insoluble fats and oils, stored as insoluble starch/in storage organs, used with nitrate ions to make amino acids and proteins
    Question 5 [7]
    Spoiler:
    Show

    (Muscle cell in the stomach with the mitochondria diagram)
    • what is the function of mitochondria? [2]
    Respiration to provide the rest of the cell with energy

    • Function of a ribosome? [1]
    Making/synthesising proteins

    • A ribosome cannot be seen through the light microscope, suggest why? [1]
    Ribosome is too small – higher magnification needed

    • What is the function of the muscle cells? [2]
    The cells work together as a tissue(muscle) to contract and relax in order to bring about movement and churn the food in the stomach

    • The measurement, magnifying question [1]
    400
    Question 6 [10?]
    Spoiler:
    Show

    • Archaeopteryx (dinosaur bird) – Suggest how this fossil was preserved. [?]
    Died and buried by sediments which created anoxic conditions meaning that microorganisms could not decay the body as they could not respire. Conditions for decay were not present. The organic/soft parts deteriorated but the hard parts (the bones) were infilled by sediments over time and thus preserved.

    • Suggest why the fossil record is incomplete [2]
    Fossils destroyed by geological activity. Conditions required for fossilization rarely occur therefore few organisms are ever fossilized.

    • Speciation from archaeopteryx [4]
    Single population of ancestor specieswas split up and isolated into multiple populations by a geographical barrier.Natural selection took place so in each population the most suitable genes werepassed on however because each population experienced different environments,different genes were passed on. This happened repeatedly until successful interbreeding was no longer possible.
    Question 7 [8]
    Spoiler:
    Show
    • Mendel and pea plants
    Ratio was 3.15:1 or 3:1. [1]

    Tick boxes: homozygous, homozygous,heterozygous [3?]

    • Why was Mendel's theory not accepted by scientists? [2]
    He was a monk not a scientist (noscientific credibility). Genes, DNA, chromosomes etc had not been discovered. He published his results in an obscure journal.

    •Cystic and poly
    1 copy of allele need for polydactyl, 2 copies needed for cystic fibrosis [1]
    • The stupid robber who left his fingerprints [1]
    B



    I think the question about the DNA fingerprinting is missing? Where you had to work out which suspect it was? Sorry if I'm wrong!!
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    (Original post by chloe.rc)
    I think the question about the DNA fingerprinting is missing? Where you had to work out which suspect it was? Sorry if I'm wrong!!
    It's in question 7, although i think in the actual exam it was in the middle
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    (Original post by Arfaa;[url="tel:55827167")
    55827167[/url]]yep, based on that mark scheme i got about 35 marks which is way lower than what i was expecting, I'm so upset
    Last year it was only 33 marks for an A and everyone is saying that this was the hardest paper yet so hopefully boundaries will be even lower plus there are 4 marks missing in this mark scheme which could be the difference between an A and A* so don't worry!
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    Do you have the answers for unit B3 aqa?
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    (Original post by neon_reaper)
    Updated for better presentation --- There are definitely some questions missing from 2 and 3, can anyone remember them? Also if you found this helpful, some rep would be appreciated (bottom left)

    Question 1 [9]
    Spoiler:
    Show
    • What are lipids broken down into? [1]
    Glycerol (Tick Box)

    • Two control variables [2]
    Time interval of 2 minutes, volume of milk/water/bile/lipase solution

    • Where is lipase produced? [1]
    Pancreas, small intestine

    • Why did the pH decrease? [2]
    The milk was digested into fatty acid and glycerol, so the fatty acid reduced the pH

    • What evidence is there that bile helped the lipase? [1]
    The pH dropped faster with bile than with water

    • Why did they both end up on the same pH? [2]
    All of the fat in the milk had been digested so the same volume of fatty acid had been produced in each beaker, therefore they ended on the same pH which could not go any lower as no more fatty acid could be produced
    Question 2 [6]
    Spoiler:
    Show
    • Tape Measure, Light Intensity Meter and Ruler Question - The tape measure would be used as a transect line from the light area to the dark area to measure the distribution. At regular intervals such as every 2m, measure the length of the ivy leaves near to the transect using the ruler (measure from the same points on each leaf to keep results valid). Also measure the light intensity using the light meter. Repeat this at every interval and the results can then be used to test the hypothesis. To makethe results more valid, the transect can be done 3 times in different areas to increase the sample size
    Question 3 [6]
    Spoiler:
    Show
    • Runners question - you had to look at the graphs at the values for the runner at the very end of the exercise and put the values into the box [2?]

    • Main reason runner 1 had a higher cardiac output? [?]
    Person 2 had a much lower stroke rate (volume of blood leaving heart)

    • Explain why Runner 1 could run faster [4]
    His heart rate and the amount of blood being pumped was higher, so more oxygen and glucose could get to the muscle cells so they could do more respiration and would therefore have more energy, allowing them to contract and relax more to bring about more movement, therefore he was able to run faster
    Question 4 [10]
    Spoiler:
    Show
    • Where is DNA found in a cell? [2]
    In the nucleus, wound up tightly as chromosomes

    When a cell undergoes mitosis and splits, the two daughter cells have the same genetic material, explain how [2]
    Chromosomes duplicate before cell splits, so each daughter cell receives the same, full set of chromosomes

    • A plant needs energy to make glucose. Where does it get this energy from? [2]
    It gets the energy from the sun in the form of light: the chlorophyll in the mesophyll cells traps the light. (No idea what gains the second mark)

    • What does a plant use glucose for other than respiration? [4?]
    Cellulose, stored as insoluble fats and oils, stored as insoluble starch/in storage organs, used with nitrate ions to make amino acids and proteins
    Question 5 [7]
    Spoiler:
    Show

    (Muscle cell in the stomach with the mitochondria diagram)
    • what is the function of mitochondria? [2]
    Respiration to provide the rest of the cell with energy

    • Function of a ribosome? [1]
    Making/synthesising proteins

    • A ribosome cannot be seen through the light microscope, suggest why? [1]
    Ribosome is too small – higher magnification needed

    • What is the function of the muscle cells? [2]
    The cells work together as a tissue(muscle) to contract and relax in order to bring about movement and churn the food in the stomach

    • The measurement, magnifying question [1]
    400
    Question 6 [10?]
    Spoiler:
    Show

    • Archaeopteryx (dinosaur bird) – Suggest how this fossil was preserved. [?]
    Died and buried by sediments which created anoxic conditions meaning that microorganisms could not decay the body as they could not respire. Conditions for decay were not present. The organic/soft parts deteriorated but the hard parts (the bones) were infilled by sediments over time and thus preserved.

    • Suggest why the fossil record is incomplete [2]
    Fossils destroyed by geological activity. Conditions required for fossilization rarely occur therefore few organisms are ever fossilized.

    • Speciation from archaeopteryx [4]
    Single population of ancestor specieswas split up and isolated into multiple populations by a geographical barrier.Natural selection took place so in each population the most suitable genes werepassed on however because each population experienced different environments,different genes were passed on. This happened repeatedly until successful interbreeding was no longer possible.
    Question 7 [8]
    Spoiler:
    Show
    • Mendel and pea plants
    Ratio was 3.15:1 or 3:1. [1]

    Tick boxes: homozygous, homozygous,heterozygous [3?]

    • Why was Mendel's theory not accepted by scientists? [2]
    He was a monk not a scientist (noscientific credibility). Genes, DNA, chromosomes etc had not been discovered. He published his results in an obscure journal.

    •Cystic and poly
    1 copy of allele need for polydactyl, 2 copies needed for cystic fibrosis [1]
    • The stupid robber who left his fingerprints [1]
    B





    THANK YOU SO MUCH FOR THIS!
    And GOOD LUCK FOR RESULTS DAY!
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    (Original post by aaminahm)
    I thought the first one was glucose😓😓😓😓😓


    Posted from TSR Mobile
    same here:unimpressed:
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    ye true suggest how it could have never asked for a specific way so i think they wil accept other ways hopefully
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    it was B for the fingerprinting question
    (Original post by neon_reaper)
    It's in question 7, although i think in the actual exam it was in the middle
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    Managed to get 100 UMS in this, hope everyone did well
 
 
 
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