End of Unit Test Mark Scheme 7AB Question
Part
Level Answer
Mark scheme
1
3
One from: reproduction, sensitivity, growth, respiration, excretion, nutrition.
1 mark
2
3
Jack because he is still growing, or the others do not grow.
1 mark 1 mark
3
4
a brain b liver c lung d stomach Accept: phonetic mis-spellings such as ‘livver’, ‘stumack’.
2 marks – 2 marks for all correct, 1 mark for 2 or 3 correct, 0 marks for 1 or 0 correct.
4
4
kidney/bladder/ureter/urethra
5
kidney – cleans blood/makes urine bladder – stores urine ureter – carries urine to bladder urethra – tube that carries urine to outside Accept: phonetic mis-spellings.
2 marks – 1 mark for organ name, 1 mark for correct function.
4
3, 2, 1, 4 (parts of the results, the prediction, the aim, the conclusion).
2 marks – 1 mark for three in the correct order, 2 marks for all four in the correct order.
a
5
digestive system
1 mark
b
5
List of organs: gullet (accept food pipe), stomach, small intestine, large intestine, rectum, anus. Accept: phonetic mis-spellings such as ‘stumack’, ‘intestin’, ‘recktem’.
2 marks – 1 mark for all organs listed, 1 mark for correct order. If organs are missed out, students can still get 1 mark for correct ordering of those that they have named.
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Question
Part
Level Answer
Mark scheme
7
a
5
xylem tissue Accept: tissue.
1 mark
b
6
Expected answer is root hair cell. Accept: other specialised plant cells (e.g. phloem, guard, epithelial, palisade).
2 marks – 1 mark for the name of a specialised cell, 1 mark for the correct function of that cell.
The cell absorbs water from the ground. Accept: other correct functions of named cells. C
6
Any of: nucleus, cell surface membrane, cytoplasm, mitochondria. Accept: mis-spellings, and ‘cell membrane’. Do not accept: membrane.
1 mark
d
6
Correct function of cell part given in part d.
1 mark
8
5
50
1 mark
9
5
The kidneys remove the waste materials from the blood. The kidneys make urine. Urine is stored in the bladder. Urine/waste materials is/are removed from the body when you pee. The kidneys and bladder form part of the urinary system.
2 marks – 1 mark for each of the points on the left to a maximum of two.
10
3
elephant, human
2 marks – one for each correct.
11
3
correct labelling, clockwise from top right: a embryo, b - child, c - adolescent, d - adult
2 marks – two for all correct, 1 mark for 2 correct.
a
5
one from: the organisms grow as they get older; the new organisms develop from fertilised eggs; it takes time before they can reproduce.
1 mark
b
5
one from: the fly lifecycle is much shorter; the young flies look nothing like the adults; the flies lay many more eggs.
1 mark
4
Clear organisation of notes. Similarities: both gametes start to be released in teens. Differences: different cells, egg cells made inside the body but sperm cells made hanging outside.
2 marks – 1 mark for clear organisation, 1 mark for at least one similarity and one difference. Do not accept similarities or differences that are not referred to in text.
a
4
13
1 mark – accept ‘between 13 and 14’, accept ‘between 13 and 13.5’. Do not accept ‘in the middle of the graph’.
b
5
Two from: voice breaks, hair grows, penis and testes grow, sperm cells start being produced, body odour develops.
2 marks – 1 mark for each correct.
c
5
puberty
1 mark
12
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15
5
X is fertilisation Y is implantation
2 marks – 1 mark for each.
16
a
5
vagina, cervix, uterus
3 marks – 1 mark for the order, 1 mark for all three names correct (but with misspellings), 1 mark for correct spelling of all three names.
17
a
6
menstruation – in which blood and the uterus lining flow out of the uterus/ vagina.
1 mark – to get the mark, both the name and the description are needed.
b
6
ovulation – in which an egg cell is released from an ovary.
1 mark – to get the mark, both the name and the description are needed.
c
6
So that the embryo can have a good supply of food/nutrients/oxygen from the mother.
1 mark
Final Level Calculation Old mark scheme Marks
Level
0–6
2 or lower
7-8
3c
9-11
3b
12-13
3a
14-16
4c
17-19
4b
20-21
4a
22-24
5c
25-26
5b
27-29
5a
30 -31
6c
32 - 33
6b
34 - 35
6a
36
7c
37
7b
38
7a
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New mark scheme Marks
Level
0–1
2 or lower
2-3
3c
4-5
3b
6-7
3a
8-10
4c
11-13
4b
14-15
4a
16-21
5c
22-27
5b
28-32
5a
33-35
6c
36-38
6b
39-40
6a
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