2015 Biology Exam PDF and Suggested Solutions

[BakedDwarf]

For 7c, your solution states "Pituitary gland has different GC receptor to liver cells thus a different GCR-complex is
formed."

But i'm pretty sure that the receptors are the same. It's just that they have different signal transduction pathways within a cell that leads to different cellular responses.

[cosine]

For the snyapse question, I had the same step 1 but step 2 i said that the neurotransmitter vesicles undergo exocytosis and are released into the synaptic cleft, then step 3 was they diffuse down to post synaptic membrane from high to low concentration, because the question said 'transferred across a synapse'. Would this still get me full marks?

[BakedDwarf]

For the snyapse question, I had the same step 1 but step 2 i said that the neurotransmitter vesicles undergo exocytosis and are released into the synaptic cleft, then step 3 was they diffuse down to post synaptic membrane from high to low concentration, because the question said 'transferred across a synapse'. Would this still get me full marks?

You may loss a mark for not explicitly stating that the neurotransmitters bind to receptors at the post-synaptic membrane.


i'm cringing so hard because for the light-dependent inputs, i said light!! I wasn't aware it said molecules

[Bruzzix]

For 7c, your solution states "Pituitary gland has different GC receptor to liver cells thus a different GCR-complex is
formed."

But i'm pretty sure that the receptors are the same. It's just that they have different signal transduction pathways within a cell that leads to different cellular responses.

Hmmmm I could be wrong, but in writing that solution I had question 3c from the 2013 VCAA paper in mind which was very similar. I think that if both cells had the same receptor then the same signal transduction pathway would be activated  leading to the same response since there are no other molecules (besides DNA) involved. Do you have a different explanation?

[Bruzzix]

You may loss a mark for not explicitly stating that the neurotransmitters bind to receptors at the post-synaptic membrane.


i'm cringing so hard because for the light-dependent inputs, i said light!! I wasn't aware it said molecules

That's nothing; I said mitosis instead of meiosis in the crossing over question *facepalm*

[StupidProdigy]

i'm cringing so hard because for the light-dependent inputs, i said light!! I wasn't aware it said molecules

I did the same, however I had 'photon' in brackets. There molecules aren't they haha?

[LoadedWithPotatoes]

Comparative Anatomy? If you said comparative morphology is that -1?

[Bruzzix]

I did the same, however I had 'photon' in brackets. There molecules aren't they haha?

No but they are particles... and waves

Comparative Anatomy? If you said comparative morphology is that -1?

Both are correct

[THEBEAST]

Why couldn't q37 be c)

[jamesbw]

Hey guys! If you'd like, have a look at our exam answers here!
https://www.connecteducation.com.au/hub/examanswers
Cheers!
James

[cosine]

i actually cant believe this, i lost 10 marks minimum this just stings..

[Toddman]

for the innate cell found in the lymph nodes, could i have said natural killer cells?

[Bruzzix]

for the innate cell found in the lymph nodes, could i have said natural killer cells?

As far as I know, there are no NK cells in the lymph nodes. Dendritic cells or macrophages would have been acceptable answers though

[Toddman]

Hey guys! If you'd like, have a look at our exam answers here!
https://www.connecteducation.com.au/hub/examanswers
Cheers!
James

How do you get an account tho?

[cosine]

why is the last answer 20000 years ago? And also for the route, did the order of continents needed to be specified? (this was from connect)