Section 1, Part A - Multiple Choice (5 Viewers)

[BlakeOlivo]

Re: 2012 hsc mc

imo 20 is B, but there are quite alot of 'conflicting perspectives'(ohhh yes i did ) surrounding it

I said B as well

 

[gayforniall]

Re: General Thoughts: Biology

What did you guys answer for the MC one that had the picture of the pathogen and was like which pathogen is this? Cause I was confident in my answer but my friend answered another one so I'm really confused. Lol

It was a bacterium, it had membrane-bound organelles from memory. Eukaryote protozoans do not.

A quick Google search says that Giardia is in fact, a protozoan. FML.

 

[Kimyia]

Re: General Thoughts: Biology

Exactly what I did, said the lens, were the LENS of human eye at differing accomodation states, retina as the paper and the water as vitreous humour

And put Protozoa for Giardia as people are talking about. I think I got the mature xylem MC wrong though.

I HATED that xylem/phloem question! But I don't remember which answer I put down

 

[gayforniall]

Re: 2012 hsc mc

imo 20 is B, but there are quite alot of 'conflicting perspectives'(ohhh yes i did ) surrounding it

Omg how could you!? NEVER BRING UP ENGLISH AGAIN! *shudders*

 

[Newbit]

Why are people saying, (B) It opens stomata in the leaves?

When the stomates open the leaves loose water, that's why plants only open the stomates in the afternoon or early in mourning.

Q18. How does a plant respond in order to keep cool on an extremely hot day?
Shouldn't the answer be, (D) It decreases the number of stomata on the top of the leaves?

I'm confused :S

 

[Kimyia]

Why are people saying, (B) It opens stomata in the leaves?

When the stomates open the leaves loose water, that's why plants only open the stomates in the afternoon or early in mourning.

Q18. How does a plant respond in order to keep cool on an extremely hot day?
Shouldn't the answer be, (D) It decreases the number of stomata on the top of the leaves?

I'm confused :S

But it was to keep cool, not to minimise water loss. When you open the stomates, you lose water but it also takes some of the heat with it, hence cooling.
Well, that was my reasoning anyway.

 

[Chulbul Pandey]

Re: General Thoughts: Biology

That xlem/phloem mc!! What was the distinguishing factor?? I put xylems have cell wall, but I'm not sure if it's right??

 

[Chulbul Pandey]

Re: General Thoughts: Biology

what everyone put as an enzyme, i totally forgot so i just wrote lol part of a liver haha

Polymerase is the enyzyme for liver

 

[louielouiee]

Re: General Thoughts: Biology

I put down that the xylem had cell walls :/ I had no idea tbh haha

Xylem consists of dead cells! So they can't have a cell wall!
Pretty sure the answer was B) Phloem has a cytoplasm.

 

[BlakeOlivo]

Re: General Thoughts: Biology

That xlem/phloem mc!! What was the distinguishing factor?? I put xylems have cell wall, but I'm not sure if it's right??

I put that down It was the only feasible option.

 

[desmol]

Why are people saying, (B) It opens stomata in the leaves?

When the stomates open the leaves loose water, that's why plants only open the stomates in the afternoon or early in mourning.

Q18. How does a plant respond in order to keep cool on an extremely hot day?
Shouldn't the answer be, (D) It decreases the number of stomata on the top of the leaves?

I'm confused :S

It was B because all of the other answers involve a change that the plant can't possible make in one day (the question did specify 'a hot day'). It can't grow leaves or w/e and it can't decrease the number of stomata that are present

 

[wavess]

Its A, because the lymph system and stomach acid only fight pathogens once theyre already in the body.

Damn damn damn I misread the freakin question

 

[Mirik]

When you open the stomates, you lose water but it also takes some of the heat with it, hence cooling.

Yep evaporative cooling is an adaption. Though if it goes for too long it will die. The question implies an unusually hot day so this response wouldn't kill them plant in this case..

 

[cartoonmaiz]

These are the MC questions:

These are my answers. Sorry for posting them up again
1. b
2. c
3. a
4. c
5. a
6. c
7. b
8. b
9. b
10. d
11. c
12. c
13. d
14. a
15. a
16. d
17. d
18. b
19. c
20. b

 

[Kimyia]

What did everyone put for question 6? The one about vaccines preventing disease?

 

[Mirik]

These are the MC questions:
View attachment 26698View attachment 26699View attachment 26700View attachment 26701View attachment 26702View attachment 26703
These are my answers. Sorry for posting them up again
1. b
2. c
3. a
4. c
5. a
6. c
7. b
8. b
9. b
10. d
11. c
12. c
13. d
14. a
15. a
16. d
17. d
18. b
19. c
20. b

Same as me

 

[LoveHateSchool]

For questions 1 to 20 I got:
1. b
2. c
3. a
4. c
5. a
6. c
7. b
8. b
9. b
10. d
11. c
12. c
13. d
14. a
15. a
16. d
17. d
18. b
19. c
20. b
Can anyone please tell me if I got anything wrong.

Got different on 9 (but I guessed that one so your probably right), 11, 18, 19.

 

[cornchips1]

Re: General Thoughts: Biology

Polymerase is the enyzyme for liver

Uh, isn't polymerase what binds DNA strands...? Or am I going crazy..

 

[NBGHHS]

As an accelerated biology student who got 95
looked at multiple choice, got to say, much more harder than last year's but should've been manageable
20 is definitely B

 

[Wajahat zia]

Re: General Thoughts: Biology

Uh, isn't polymerase what binds DNA strands...? Or am I going crazy..

polymerase is the enzyme which allows for protein synthesis and replication of dna