National 5 Biology Unofficial Marking Scheme

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rittajmoghal29
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#1
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#1
Multiple Choice
1) A
2) D
3) B
4) D
5) B
6) C
7) A
8) C
9) B
10) A
11) D
12) A
13) D
14) A
15) C
16) C
17) B
18) B
19) C
20) D
21) A
22) B
23) D
24) B
25) D

Do you need the pictures as well? Thats the official marking scheme after reading the discussions in the Biology Thread

Section 2
Name the process sodium ions move into cell
-Passive
Potassium ions move out of the cell draw the direction
I guess I drew the arrow out rather than in 🙄

How is the dwarf allelle recessive?
Since the F1 offsprings are all tall, suggesting the tall allele is dominant as it masks over the dwarf allelle.

One feature of villus and alveoli common
Both have a large network of capillaries, are one cell thick and have a large surface area.

The pyramid question
-The regular one as bush will be more in number and hawks will be less

Percentage decrease was 30%

The 4 marker was about hormone control in glucose.
When glucose levels are low, the pancreas releases glucagon which is complementary to the liver cells. It converts excess glycogen to glucose. Glucose is released in blood and increases it's level back to normal.

The other 4 marker was stages of genetic engineering.
so Plasmid is extracted from the bacterial cell and cut open, enzymes seal the gene in the plasmid. Plasmid is reinserted back into the host cell and the cell is multiplied to produce a genetically modified product.


Any other questions do type in yourselves I might update the thread in a while
Last edited by rittajmoghal29; 3 years ago
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Labrador99
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#2
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#2
(Original post by rittajmoghal29)
Multiple Choice
1) A
2) D
3) B
4) D
5) B
6) C
7) A
8) C
9) B
10) A
11) D
12) A
13) D
14) A
15) C
16) C
17) B
18) B
19) C
20) D
21) A
22) B
23) D
24) B
25) C

Do you need the pictures as well? Thats the official marking scheme after reading the discussions in the Biology Thread

Section 2
Name the process sodium ions move into cell
-Passive
Potassium ions move out of the cell draw the direction
I guess I drew the arrow out rather than in 🙄

How is the dwarf allelle recessive?
Since the F1 offsprings are all tall, suggesting the tall allele is dominant as it masks over the dwarf allelle.

Any other questions do type in yourselves I might update the thread in a while
Thanks for making this!
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Anonymous34556.
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#3
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#3
Can you post the paper too please
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Ibra_17
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#4
How is 17 b
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Ibra_17
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#5
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#5
Would for 17 you not just add the number on it should equal to A i think
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jack102
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#6
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#6
the graph moves by 2 years in each bar but the question asks you to jump 4 years, so it has to be adding on 3.6 instead of 1.8 sorry
(Original post by Ibra_17)
Would for 17 you not just add the number on it should equal to A i think
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Anonymous34556.
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#7
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#7
What was question 17 ?
(Original post by Ibra_17)
Would for 17 you not just add the number on it should equal to A i think
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Consequence_CC
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#8
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#8
Would question 25 not be D?
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Ibra_17
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#9
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#9
Oh alright
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Ibra_17
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#10
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#10
Think I’ve got 22 not bad but stupid mistakes thanks anyway
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rittajmoghal29
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#11
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#11
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Anonymous34556.
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#12
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#12
That’s what I put
(Original post by Consequence_CC)
Would question 25 not be D?
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jack102
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#13
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#13
yeah it is isn't it, think the photos posted had D as well, I put D


(Original post by Consequence_CC)
Would question 25 not be D?
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rittajmoghal29
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Please note some of my answers are wrong in the pictures please refer to the first post.
🤗
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Blank5555
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#15
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#15
(Original post by Consequence_CC)
Would question 25 not be D?
I put D
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rittajmoghal29
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#16
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#16
(Original post by jack102)
yeah it is isn't it, think the photos posted had D as well, I put D

Yep it is D *facepalm*
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GreenBannana
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#17
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#17
(Original post by rittajmoghal29)
Yep it is D *facepalm*
I wrote C aswell haha
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Ibra_17
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#18
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#18
(Original post by Anonymous34556.)
What was question 17 ?
It was the one about the seal pup population shown in the graph
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scottybug12
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#19
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#19
For question 1 I put it bursts which is B
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Anonymous34556.
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#20
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#20
The cell would shrink less water
(Original post by scottybug12)
For question 1 I put it bursts which is B
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