!! Biology HL 2016 - discussion & aftermath

luftmensch

I find it kinda funny how many of the A/B students I talked to found it really tough, while the C/D students (myself included) found it rather easy. The tide is turning lol.

DownOneTourist

luftmensch wrote: »

I find it kinda funny how many of the A/B students I talked to found it really tough, while the C/D students (myself included) found it rather easy. The tide is turning lol.

it's important to remember the bell curve. If the A/B students in general found it hard they are still the A/B students. Maybe it will be marked easier?

medhopeful16

luftmensch, I agree one of the "A1 girls" looked like she was going to start crying during the exam.

Just a few questions that I wasn't sure of:

How do you know from the diagram that the reproduction was asexual?
What's the reason for a suitable temperature for the dark stage?
How does the curvature contribute to the functioning of the eye?
Name a vein that has capillaries at both ends.

pseudorachel

medhopeful16 wrote: »

luftmensch, I agree one of the "A1 girls" looked like she was going to start crying during the exam.

Just a few questions that I wasn't sure of:

How do you know from the diagram that the reproduction was asexual?
What's the reason for a suitable temperature for the dark stage?
How does the curvature contribute to the functioning of the eye?
Name a vein that has capillaries at both ends.

asexual because there was only one parent in the diagram
suitable temperature normally means enzymes
no idea
i said the hepatic portal vein but I'm not sure

Plankton55

medhopeful16 wrote: »

luftmensch, I agree one of the "A1 girls" looked like she was going to start crying during the exam.

Just a few questions that I wasn't sure of:

How do you know from the diagram that the reproduction was asexual?
What's the reason for a suitable temperature for the dark stage?
How does the curvature contribute to the functioning of the eye?
Name a vein that has capillaries at both ends.

There was only one parent
to allow enzymes to work at their optimum
I said allows light to enter from all angles but I think that's wrong
Hepatic Portal vein

Seaaan

I said something about depth perception.. Probably wrong

DublinArnie

We should have them voting things at the start of the thread so we get a nice fat pie chart representing the general cenus of the exams.

Inspector Coptoor

medhopeful16 wrote: »

luftmensch, I agree one of the "A1 girls" looked like she was going to start crying during the exam.

Just a few questions that I wasn't sure of:

How do you know from the diagram that the reproduction was asexual?
What's the reason for a suitable temperature for the dark stage?
How does the curvature contribute to the functioning of the eye?
Name a vein that has capillaries at both ends.

One parent and no gametes

Suitable temperature during the dark stage to allow enzymes to regulate the metabolic pathways

Curvature of the eyeball helps refract/bend the light towards the retina.

Hepatic portal vein.
There's another one in the brain but can't remember it's name.

Corkalex

The vein question where we had to name suitable veins that correspond to the sentence... I wrote down aorta and pulmonary artery for a sentence but they're not veins right? Didn't know what vein would fit in correctly

Inspector Coptoor

Corkalex wrote: »

The vein question where we had to name suitable veins that correspond to the sentence... I wrote down aorta and pulmonary artery for a sentence but they're not veins right? Didn't know what vein would fit in correctly

15 a ii(Blood vessel question
1. Transports blood out of the muscle of the heart - coronary vein
2. Brings blood away from the kidneys - renal vein
3. Carries very little CO2 - pulmonary vein
4. Brings blood into the right atrium - vena cava
5. Ha capillaries at both ends - hepatic portal vein.

TheBiz

Inspector Coptoor wrote: »

15 a ii(Blood vessel question
1. Transports blood out of the muscle of the heart - coronary vein
2. Brings blood away from the kidneys - renal vein
3. Carries very little CO2 - pulmonary vein
4. Brings blood into the right atrium - vena cava
5. Ha capillaries at both ends - hepatic portal vein.

I wrote down 'aorta, pulmonary artery, renal artery' only to realise it was Veins.. Needless to say I narrowly avoided a heart attack

randylonghorn

luftmensch wrote: »

I find it kinda funny how many of the A/B students I talked to found it really tough, while the C/D students (myself included) found it rather easy. The tide is turning lol.

IF those perceptions are correct, it would suggest it was a paper where it was fairly straightforward to get the honour if you knew your stuff, but tough enough to get a top grade ... which is probably the way an Hons paper should be, so the setter did his / her job well.

EoghanIRL

Inspector Coptoor wrote: »

One parent and no gametes

Suitable temperature during the dark stage to allow enzymes to regulate the metabolic pathways

Curvature of the eyeball helps refract/bend the light towards the retina.

Hepatic portal vein.
There's another one in the brain but can't remember it's name.

Hypophyseal portal system.

koolis02

for the exp. question for drawing the heart rate/ pulse rate was it a line you drew or a curve?

DublinArnie

koolis02 wrote: »

for the exp. question for drawing the heart rate/ pulse rate was it a line you drew or a curve?

It said draw a graph?

DownOneTourist

DublinArnie wrote: »

It said draw a graph?

I think he's asking did you draw straight lines or curved lines in the graph. I drew lines that were curved but i'm not sure

DublinArnie

DownOneTourist wrote: »

I think he's asking did you draw straight lines or curved lines in the graph. I drew lines that were curved but i'm not sure

I drew an exponential decreasing curve, assuming both women just finished exercise.. Their pulse rate would be high but different levels. Since the woman is fit, her pulse rate will decrease faster and level off faster.

It was a weird question.

Jigga98

Does anyone know if spelling would matter for the NAD? Instead of nicotinamide adenine dinucleotide I said nicotanine adenine dinucleotide,

Giotar

Jigga98 wrote: »

Does anyone know if spelling would matter for the NAD? Instead of nicotinamide adenine dinucleotide I said nicotanine adenine dinucleotide,

With how much people were complaining about that question, I wouldn't be surprised if any proper attempt at that gets you the full marks. You should be alright

DownOneTourist

DublinArnie wrote: »

I drew an exponential decreasing curve, assuming both women just finished exercise.. Their pulse rate would be high but different levels. Since the woman is fit, her pulse rate will decrease faster and level off faster.

It was a weird question.

thats what i did! except with breathing rates. my unfit person had a higher rest breathing rate also

koolis02

DownOneTourist wrote: »

thats what i did! except with breathing rates. my unfit person had a higher rest breathing rate also

I did 2 linear graphs with the unfit persons heart rate increasing quicker and the fitter persons heart rate increasing more steadily

luftmensch

koolis02 wrote: »

I did 2 linear graphs with the unfit persons heart rate increasing quicker and the fitter persons heart rate increasing more steadily

That's what I did too.

DownOneTourist

so you guys did have both on the axes?

Jack55

What did you guys put for the name given to the regions of plants which secrete growth regulators?

luftmensch

Jack55 wrote: »

What did you guys put for the name given to the regions of plants which secrete growth regulators?

The meristems

Jack55

luftmensch wrote: »

The meristems

Ugh.. talk about a poorly phrased question. Felt like they were asking for a certain species of plant.

TSMGUY

luftmensch wrote: »

The meristems

isn't it the zone of elongation? The meristem is the zone of reproduction, the zone of elongation is where auxins are secreted?

luftmensch

TSMGUY wrote: »

isn't it the zone of elongation? The meristem is the zone of reproduction, the zone of elongation is where auxins are secreted?

Ah ****e, they're produced in the meristems, but secreted in the zone of elongation, isn't that it? Oh well, another 3 marks gone.

emersyn

luftmensch wrote: »

Ah ****e, they're produced in the meristems, but secreted in the zone of elongation, isn't that it? Oh well, another 3 marks gone.

Just realised I made the same mistake, A1 slipping further and further out of my reach

TSMGUY

emersyn wrote: »

Just realised I made the same mistake, A1 slipping further and further out of my reach

Sorry to be the bearer of bad news guys! If you guys have any more questions you wanna know the answer to, try me, I think I did pretty well. I always feel like such a pr*** telling people they got an answer wrong but if it'll set you at ease....

Edrees98

TSMGUY wrote: »

Sorry to be the bearer of bad news guys! If you guys have any more questions you wanna know the answer to, try me, I think I did pretty well. I always feel like such a pr*** telling people they got an answer wrong but if it'll set you at ease....

Hahahahaa, you couldn't have sounded any more arrogant:D.

TSMGUY

Edrees98 wrote: »

Hahahahaa, you couldn't have sounded any more arrogant:D.

Ayyyyyyyy that's rich coming from you Mr "Did 2009 biology paper, got 99%"

You had me stressing with that chit. 99%???

Edrees98

TSMGUY wrote: »

Ayyyyyyyy that's rich coming from you Mr "Did 2009 biology paper, got 99%"

You had me stressing with that chit. 99%???

Hahaha, that was an easy paper though.

DublinArnie

Meristems are located in the zone of elongation and apricol bud. They produce and secrete the growth promoters.

At this stage, I think the marking scheme will give marks for Meristems because technically it's right.

LaursMurp123

If anyone has the paper could you post a link please! Cant find it online! Thanks!

luftmensch

LaursMurp123 wrote: »

If anyone has the paper could you post a link please! Cant find it online! Thanks!

https://www.examinations.ie/exammaterialarchive/

Johno2474

Anyone know the answer to last two questions on Qs.9 the experiments??

emersyn

Johno2474 wrote: »

Anyone know the answer to last two questions on Qs.9 the experiments??

9bv) After the plate was flooded with iodine the entire surface of the agar changed colour from brown-yellow to blue-black

vi) The digestive enzymes in the beans had been denatured so digestion of the starch had not occurred, meaning that starch was still present in all of the agar which caused the colour change

If you used skimmed milk/protein agar it'll be different, I presume you use biuret reagent and it changes from blue to purple

LC2016

The amount of time wasted studying for this horror of an exam for it not to even be counted is a bit sickening.

maude6868

My daughter spent most of her time on Biology last year, studied it to bits and got D1. Terrible waste of precious study hours too. She did very well in all other subjects, still can't understand it.

EoghanIRL

Just because you spend time studying doesn't mean you are going to get good grades, you also need to have aptitude.

If you didn't get the marks then you didn't have the right answers. All questions are based on the syllabus. Tricky questions are meant to challenge the good students while separating them from the weak students. You see this all the time in Mcqs. They will have enough easy questions for the students who want to pass and then the trickier questions will be answered correctly by the better students.

You would be a fool to think that just because you studied you are guaranteed good results. Its application of information which matters, which is why the weaker students get caught out by curve balls.

TSMGUY

Set last year's wrong right and got my A2 up to an A1. Shame my C1 in maths disbars me from most science courses though:rolleyes:

EDIT: EoghanIRL, there's no need to be so rude to the woman, she's just disappointed for her daughter. Even though I got an A1, I have to say the questions were funky as hell this year.

LC2016

maude6868 wrote: »

My daughter spent most of her time on Biology last year, studied it to bits and got D1. Terrible waste of precious study hours too. She did very well in all other subjects, still can't understand it.

I was the exact same.It was my worst result by far and the one I put most effort into weirdly enough. Who knows what more I could've got had I focused mostly on those six I counted

TheBiz

I had pegged Biology as one of my worst subjects (that I was counting) ended up getting a B2 up from a D1 in the mock!

Bangdiggy

i was actually shocked to have gotten an A2 from B3 in mocks