SULIT 4551/3

4551/3 ©2014 Hak Cipta BPSBPSK SULIT

BAHAGIAN PENGURUSAN SEKOLAH BERASRAMA PENUH

DAN SEKOLAH KECEMERLANGAN

PENTAKSIRAN DIAGNOSTIK AKADEMIK SBP 2014

PEPERIKSAAN AKHIR TAHUN (TINGKATAN 4)

BIOLOGI

Kertas 3

SET 3

1 jam 45 minit

PERATURAN PEMARKAHAN

Peraturan Pemarkahan ini mengandungi 5 halaman bercetak

2

SULIT 4551/3

4551/3 ©2014 Hak Cipta BPSBPSK SULIT

No CRITERIA MARKS

1(a)

Able to complete Table 1 based on the experiment.

Sample answers:

Solution Reagent Test procedure Observation

A1

Iodine

solution

1. 2 ml of each food

sample is poured

into a test tube

2. Three drops of

iodine solution are

added to each food

sample.

No colour change

occur / the iodine

solution does not

change to blue

black

A2

No colour change

occur / the iodine

solution does not

change to blue

black

A1

Biuret

test

1. 2 ml of each food

sample is poured

into a test tube

2. 1 ml of 20% sodium

hydroxide solution

is the added to each

of the food samples

and shaken well

3. A few drops of 1%

copper(II) sulphate

solution are then

added slowly to

each of the mixture

4. Each mixture is

shaken well and

allowed to stand

Food sample turn

purple / blue

A2

Food sample does

not change colour

A1

DCPIP

solution

1. Put 5 drop of

DCPIP solution

into food samples

( 1m )

No colour change

occur (1m)

A2

DCPIP solution

change colour

from blue to

colourless (1m)

1

1

1

1

1

1

-------

6

3

SULIT 4551/3

4551/3 ©2014 Hak Cipta BPSBPSK SULIT

1(b)

Able to make two accurate inferences based on two criteria:

C1 –Solution A1 is a protein and Solution A2 is a Vitamin C

C2 – Because Soluton A1 turn purple / blue when tested using Biuret test

and Solution A2 change blue colour DCPIP into colourless

Sample answer:

Solution A1 contain protein because it turn purple / blue when tested

using Biuret test and solution A2 contain Vitamin C because it turn blue

color of DCPIP into colourless

1

1

-----

2

1(c)

Able to state manipulated variable and responding variable

Answers:

Manipulated variable : Food sample A1 and A2

Responding variable : Nutrient content / class of food

1

1

-------

2

(d)

Able to name another reagent to determine the class of food in food

sampel A1

Sampel answer : Millon reagent

1

(e)

Able to state the class of food in food sample A1

Sampel answer:

Carbohydrates / starch

1

(f)

Able to state which food sample suitable for Ali as a body builder and

give reason to the answer

P1 : Food sample A1

P2 : Because it contain protein

P3 : that function to build new cell (for the muscle tissue.)

1

1

1

4

SULIT 4551/3

4551/3 ©2014 Hak Cipta BPSBPSK SULIT

Sample answer :

Food sample A1 should be taken by Ali in large amount because it

contain protein.

Protein function to build new cells for muscle tissue

--------

3

(g)(i)

Able to name another food sample that give the same result as food

sample A1 to the same test.

P1: Manggo juice, Orange juice, any suitable answer

P2 : It contain vitamin C

Sample answer :

Manggo juice / orange juice or any suitable answer because it contain

vitamin C

1

1

-------

2

g(ii) Able to state the result of food test if a boiled food sample A2 is used and

give reason .

Sample answers:

P1 : Boiled food sample A2 does not change the blue colour of DCPIP

solution

P2 : The vitamin C in food sample A2

P3 : have been denatured / destroy [ Reject : dead ]

Sample answer :

Boiled food sample A2 does not change the blue colour of DCPIP

solution because it contain vitamin C that have been denatured / destroy

1

1

1

--------

3

2(a)

Types of beans Number of

first capture

Number of second capture

Marked Total number of

beans

Soy beans 200 42 100

Green beans 80 20 30

3

1 mark 1 mark 1 mark

5

SULIT 4551/3

4551/3 ©2014 Hak Cipta BPSBPSK SULIT

(b)(i)

Able to calculate the population size of Malaysian Locust:

Population size = a X b

c

= 80 X 30

20

= 120

2

b(ii) Able to calculate the population size of Green Leek grasshopper

Answer:

Population size = a X b

c

= 200 X 100

42

= 476

2

(c) Able to compare population size of Malaysian Locust and Green Leek

grasshopper.

Sample answers:

P1 : Population size of Green Leek grasshopper is more than Malaysian

Locust

P2 : Green Leek grasshopper more dominant than Malaysian Locust /

Green Leek grasshopper eat more food than Malaysian Locust /

Green Leek grasshopper have higher growth rate than Malaysian

Locust

1

1

1

1

[ 1P1 + 2P2 ]

--------

3

10 marks

End of Mark Scheme

Peraturan Pemarkahan Tamat

1 mark

1 mark

1 mark

1 mark