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    (Original post by JohnJuJu)
    I think you forgot the one about the heart, and how if it doesn't get enough oxygen, it can cause a heart attack
    It's the last part of question 9 on my list.
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    (Original post by aqua-rina)
    I thought denaturing was just enzymes though? idk it destroys them either way
    Isn't there usually a weird experiment question? We were taught to use CORMS. Change Organism Repeat Same

    Well, that's true- And at least you were taught something! We didn't even have a Biology teacher for half the school year. :-/ The new one we got just made us cover up pollution and microorganisms and disease. That's about it!
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    (Original post by Foreboding)
    It's the last part of question 9 on my list.
    My bad, what is the answer to that question btw?
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    (Original post by Foreboding)
    Okay, please correct me if I'm wrong but this what questions came up on today's paper:
    1) draw lines to match the boxes (MRS GREN and explanations). 5 marks.
    2) Picture of a rat's internal organs.
    -> What is an organ ? (1 mark)
    -> What is the organ on the diagram that is part of the circulatory system (1 mark)
    -> Name two organ systems on the diagram ( 2 marks)
    -> Name one other organ system (1 mark)
    b) Write the name of the organ for each of the following functions
    Ventilation [ ]
    Secretion of insulin []
    Secretion of HCL []
    Secretion of bile []
    4 marks
    3) Collie eye problem genetics question
    -> The phenotype of row hh hh hh hh. 1 mark
    -> Row S does not have poor visioned offspring which are the other rows? 1 mark
    -> Which row has a 50% chance of producing poor visioned offspring ? 1 mark
    -> Which is the genotype of row Hh Hh Hh Hh? 1 mark
    (probably some question hear I cannot remember)
    4)Explain how smoking damages the lungs. 5 marks.
    5)Suggest a reason how carbon monoxide can lead to a smaller baby (4 marks)
    6)Phosphates can pollute rivers. Secchi disks can be used to see how polluted. Heres a table
    Lake A some relatively high number
    Lake B probably a relatively high number
    Lake C lowest number
    Lake D similar number to C

    conclusion C is the most polluted

    Two reasons why conclusion could be wrong (2 marks)
    b) explain how fish can die as a consequence of phosphates. 5 marks
    7) Growth hormone's effect on milk volume.
    Bar chart of control, incrementing milligrams of hormone
    -> How much hormone should you put for the control? 1 mark
    -> Describe the effect of growth hormone. 2 marks
    -> This is done for groups of cows, suggest two control variables. 2 marks
    b) explain how bacteria can be genetically modified to produce growth hormone. 4 marks
    8) Seechi question continued... Graph of different months with a scientist measuring seechi depth for each month
    -> how many times did he check the secchi depth? 1 mark
    -> he concluded only april was dangerous for swimming, suggest a reason why. 1 mark
    -> Suggest a reason why he is incorrect 1 mark
    9) Graph question
    -> draw a bar chart of the table. 6 marks.
    -> describe how data differs for men and women. 2 marks.
    -> suggest why. 1 mark.
    -> explain the effect of reducing blood supply to the heart. 4 marks.
    10) Yield of plants question. Table with 3 fertilisers, nitrates, phosphates, potassium, all 3 percent yield
    -> which one has the greatest effect? 1 mark
    -> explain why. 2 marks.
    -> which one did potassium have the last effect on? 1 mark
    -> upland and wetland crop are different, why? 1 mark
    b) Dry mass part
    -> why is DRY mass needed? 1 mark
    -> how do you determine the dry mass of 10kg of potato tubers? 2 marks
    -> Why percentage? 2 mark
    c) calculation. 12 is the total mass. 5 is some other mass. calculate percentage yield. show your working. 2 marks
    11) Design an investigation to see the effect of garlic on mosquito attraction. 6 marks
    Yes I know there are 12 questions, I must have one out. Please correct me if I am wrong.
    You forgot the part where they asked why percentage is more effective than using g per km^2 (or what ever the unit was.)
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    (Original post by JohnJuJu)
    My bad, what is the answer to that question btw?
    I think my answer was an overkill but I thought I might as well write it down.

    Reducing blood supply to the heart muscles, decreases the amount of oxygen and glucose supplied. This decreases aerobic respiration which means less energy is released. Furthermore, anaerobic respiration occurs which produces the toxic compound lactic acid. Oxygen is needed to oxidise the lactic acid. Moreover, less C02 is transferred away so it builds up and causes the pH to lower, preventing enzymes from working. The muscles stop working and a heart attack occurs.
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    (Original post by boundlessea)
    You forgot the part where they asked why percentage is more effective than using g per km^2 (or what ever the unit was.)
    Last part to question 10 b.
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    (Original post by Foreboding)
    I think my answer was an overkill but I thought I might as well write it down.

    Reducing blood supply to the heart muscles, decreases the amount of oxygen and glucose supplied. This decreases aerobic respiration which means less energy is released. Furthermore, anaerobic respiration occurs which produces the toxic compound lactic acid. Oxygen is needed to oxidise the lactic acid. Moreover, less C02 is transferred away so it builds up and causes the pH to lower, preventing enzymes from working. The muscles stop working and a heart attack occurs.
    Cool, that's exactlt what i put
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    Hey, you know for the question about two control variables for the groups of cow, I said age and the diet provided. Do you think these are right?
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    (Original post by Foreboding)
    Last part to question 10 b.
    Sorry! But I got the question you missed out:
    They gave a structure of the inside of the leaf and asked to describe how Layers A, B and C, and structure D help in photosynthesis.
    [EDIT] Along with the water lily question the picture of the stomata on the lower surface of the leaf.
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    if you labeled one of the structures in the leaf wrong, but gave the correct function for what you thought it was , wud you only lose 1 mark?
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    (Original post by boundlessea)
    Sorry! But I got the question you missed out:
    They gave a structure of the inside of the leaf and asked to describe how Layers A, B and C, and structure D help in photosynthesis.
    Wow, I'm sorry. I can't believe I forgot such a significant question :afraid:
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    [QUOTE=Foreboding;55721649]Okay, please correct me if I'm wrong but this what questions came up on today's paper:
    1) draw lines to match the boxes (MRS GREN and explanations). 5 marks.
    2) Picture of a rat's internal organs.
    -> What is an organ ? (1 mark)
    -> What is the organ on the diagram that is part of the circulatory system (1 mark)
    -> Name three organ systems on the diagram (3 marks)
    -> Name one other organ system (1 mark)
    b) Write the name of the organ for each of the following functions
    Ultrafiltration []
    Ventilation [ ]
    Secretion of insulin []
    Secretion of HCL []
    Secretion of bile []
    4 marks
    3) Collie eye problem genetics question
    -> The phenotype of row hh hh hh hh. 1 mark
    -> Row S does not have poor visioned offspring which are the other rows? 1 mark
    -> Which row has a 50% chance of producing poor visioned offspring ? 1 mark
    -> Which is the genotype of row Hh Hh Hh Hh? 1 mark
    (probably some question hear I cannot remember)
    4)Explain how smoking damages the lungs. 5 marks.
    5)Suggest a reason how carbon monoxide can lead to a smaller baby (4 marks)
    6)Phosphates can
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    (Original post by boundlessea)
    For the oviducts question, I wrote about the woman losing her menstruation cycle and how it can cause other problems related to health and such.
    What did you all write for the last question with the mosquito bite-experiment?
    and bloody Hell at the Secchi disk question. Feeling uneasy about the thought of it!
    Okay, for the oviducts question I do not think sterilisation affects the menstrual cycle. Hormones and periods still occur after the procedure. From a collection of sources, I believe the correct answer is that it is a more complex,dangerous procedure to cut a women in a 'deep' section of the body (surrounded by other organs), where cutting the vas deferens/sperm duct is simpler as it is an external organ.
    For the mosquito bite question this is what I wrote.
    -> two groups of people, same gender & age
    -> one made to eat 100g of garlic ; one given no garlic
    -> measure the number of mosquito bites on their body
    -> leave them for a week
    -> measure the number of mosquito bites afterwards. Afterwards - before to get mosquito bites accumulated over the week.
    Control:
    - Area in which the groups stay
    - The diet of the groups.
    For reliability the number of mosquito bites accumulated over the week is totalled up and averaged for each group.
    I, unfortunately, did not explicitly mention that the area was a mosquito area and I wrote nothing about filling rooms with mosquitos and humans...
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    Was D a guard cell or stomata... I wrote both in a sneaky and blurred way what do you think ill get?
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    If you labelled one of the parts/layers of the leaf wrong, but u gave the correct function of tht part, do u think i'll lose all the marks? or is it like an error carried forward?
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    (Original post by Foreboding)
    Okay I have updated it. I should really find a better way to update it without spamming the thread.
    Didn't you have to name three systems of the rat?
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    (Original post by simon204)
    Can we try and get a complete-ish list of questions for the paper with a rough estimate of marks? this is what I remember.

    1. the matching question (6 marks)
    2. the mouse question (7ish marks)
    3.
    4.
    5.
    6.
    7.
    8.
    9.
    10.
    11.
    12. the experimental design question (6 marks)

    also, what did you put for the question on where ventilation occurs?
    Honestly, the paper is done. No point in doing this.
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    (Original post by Deano1)
    Was D a guard cell or stomata... I wrote both in a sneaky and blurred way what do you think ill get?
    zilch mate, zilch #realsneaky
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    (Original post by Foreboding)
    Okay, please correct me if I'm wrong but this what questions came up on today's paper:
    1) draw lines to match the boxes (MRS GREN and explanations). 5 marks.
    2) Picture of a rat's internal organs.
    -> What is an organ ? (1 mark)
    -> What is the organ on the diagram that is part of the circulatory system (1 mark)
    -> Name two organ systems on the diagram ( 2 marks)
    -> Name one other organ system (1 mark)
    b) Write the name of the organ for each of the following functions
    Ventilation [ ]
    Secretion of insulin []
    Secretion of HCL []
    Secretion of bile []
    4 marks
    3) Collie eye problem genetics question
    -> The phenotype of row hh hh hh hh. 1 mark
    -> Row S does not have poor visioned offspring which are the other rows? 1 mark
    -> Which row has a 50% chance of producing poor visioned offspring ? 1 mark
    -> Which is the genotype of row Hh Hh Hh Hh? 1 mark
    (probably some question hear I cannot remember)
    4)Explain how smoking damages the lungs. 5 marks.
    5)Suggest a reason how carbon monoxide can lead to a smaller baby (4 marks)
    6)Phosphates can pollute rivers. Secchi disks can be used to see how polluted. Heres a table
    Lake A some relatively high number
    Lake B probably a relatively high number
    Lake C lowest number
    Lake D similar number to C

    conclusion C is the most polluted

    Two reasons why conclusion could be wrong (2 marks)
    b) explain how fish can die as a consequence of phosphates. 5 marks
    7) Growth hormone's effect on milk volume.
    Bar chart of control, incrementing milligrams of hormone
    -> How much hormone should you put for the control? 1 mark
    -> Describe the effect of growth hormone. 2 marks
    -> This is done for groups of cows, suggest two control variables. 2 marks
    b) explain how bacteria can be genetically modified to produce growth hormone. 4 marks
    8) Seechi question continued... Graph of different months with a scientist measuring seechi depth for each month
    -> how many times did he check the secchi depth? 1 mark
    -> he concluded only april was dangerous for swimming, suggest a reason why. 1 mark
    -> Suggest a reason why he is incorrect 1 mark
    9) Graph question
    -> draw a bar chart of the table. 6 marks.
    -> describe how data differs for men and women. 2 marks.
    -> suggest why. 1 mark.
    -> explain the effect of reducing blood supply to the heart. 4 marks.
    10) Yield of plants question. Table with 3 fertilisers, nitrates, phosphates, potassium, all 3 percent yield
    -> which one has the greatest effect? 1 mark
    -> explain why. 2 marks.
    -> which one did potassium have the last effect on? 1 mark
    -> upland and wetland crop are different, why? 1 mark
    b) Dry mass part
    -> why is DRY mass needed? 1 mark
    -> how do you determine the dry mass of 10kg of potato tubers? 2 marks
    -> Why percentage? 2 mark
    c) calculation. 12 is the total mass. 5 is some other mass. calculate percentage yield. show your working. 2 marks
    11) Design an investigation to see the effect of garlic on mosquito attraction. 6 marks
    Yes I know there are 12 questions, I must have one out. Please correct me if I am wrong.
    There was ultrafiltration for name an organ question too!x
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    Be careful which exam discussions you are reading. I think cystic fibrosis question was in gcse exam, this is igcse.
    When it comes to my exam, i really messed up in that fertility question. Idk


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