C1 aqa - how are we feeling?

Just wondering what everyone is feeling like for tomorrow? Any topics you're still struggling on? Any topics you hope will appear on the exam? What grade are you hoping for?

Fingers crossed that underage drinking doesn't come up tomorrow..Really hope this exam has some more content on!

And can anyone explain fermentation to me? Its still a weak spot in my knowledge and I'm trying to cram before tomorrow morning...I'm so stupid, I know..:/

Just wondering what everyone is feeling like for tomorrow? Any topics you're still struggling on? Any topics you hope will appear on the exam? What grade are you hoping for?

Fingers crossed that underage drinking doesn't come up tomorrow..Really hope this exam has some more content on!

And can anyone explain fermentation to me? Its still a weak spot in my knowledge and I'm trying to cram before tomorrow morning...I'm so stupid, I know..:/

I'm generally fine with C1 but there's one thing I still don't have a lot of points for.
Can someone please provide a few reasons why scientists cannot accurately predict earthquakes?

I feel a lot less prepared for C1 than B1...which isn't a good sign since I wasn't pleased with what I wrote in the biology paper I'm hoping for an A* though because I'm doing it next year
I used to hate it, but now I'm hoping for a straight up question about why earthquakes happen or something like that The limestone cycle would be a good 6 marker too.

Fermentation
glucose in plants is broken down by yeast to produce ethanol and water

I'm generally fine with C1 but there's one thing I still don't have a lot of points for.
Can someone please provide a few reasons why scientists cannot accurately predict earthquakes?

Can someone briefly explain the Miller Urey? That's probably my weakest section in C1.

Thanks

I'm generally fine with C1 but there's one thing I still don't have a lot of points for.
Can someone please provide a few reasons why scientists cannot accurately predict earthquakes?

you maybe prepared but can you state two features of a private limited company. I know this isn't on the syllabus but after the other day, anything could happen.

Scientists simply don't have enough knowledge of what's happening inside the Earth.

When earthquakes occur, the movement from the tectonic plates are sudden and unpredictable, so scientists can only predict when an earthquake is likely to happen (that's all we need to know for c1)

Because not all tremors necessarily mean an eruption. The previous mark scheme for this question :

4(a)(ii)any one from:
• not all tremors (smallearthquakes) indicate that thevolcano will erupt
• scientists cannot monitorwhat is happening below theEarth’s crust or in the Earth’smantle

ignore tremors (smallearthquakes) are random / haveno pattern
ignore difficult to predict / noevidence / no proofallow these tremors (smallearthquakes) may be false alarms

You maybe prepared but can you state two features of a private limited company. I know this isn't on the syllabus but after the other day, anything could happen.

You maybe prepared but can you state two features of a private limited company. I know this isn't on the syllabus but after the other day, anything could happen.

Can someone briefly explain the Miller Urey? That's probably my weakest section in C1.

Thanks

Earth's early atmosphere consisted of hydrocarbons, ammonia and lightning (amongs other things). Primordial soup theory stated that lightning struck these, causing a chemical reaction between gases, resulting in amino acids being formed which combined to make organic matter, which evolved into life. Miller and Urey did an experiment mixing elements/compounds from the Earth's early atmosphere: water, ammonia, methane and hydrogen. It was heated to produce water vapour, then electric sparks were passed through. This represented what was believed to be the gases in the early atmosphere and lightning. After a week, amino acids were formed, which are the basic building blocks of proteins, from which organic matter is formed which can evolve into simple living organisms.

However, the experiment doesn't prove life began as amino acids are only building blocks of life, so would need to be arranged in a specific way to form proteins, which lead to life. The gases they used were also not the right gases - other gases e.g. volcanic gases stop the experiment from working.

Another theory for life beginning is life from an asteroid.

I think that's pretty much everything for miller-urea topic. Hope this helps!

You maybe prepared but can you state two features of a private limited company. I know this isn't on the syllabus but after the other day, anything could happen.