(PMR 2006)

P1

1 Diagram 1 shows one of the systems in the human body.

(a) On Diagram 1, label organs P, Q and R using the following words.

Lung Kidney Urinary bladder (3 marks) (b) Name the system in Diagram 1. ………………………………………………………………………………………........

(1 mark)(c) State two functions of the system in Diagram 1. 1. ……………………………………………………………………………………….. 2. ………………………………………………………………………………………..

(2 marks)

Diagram 1

P2

P3

P4

P5

4. Diagram 4 shows the titration process

Diagram 4(a) What is neutralisation?__________________________________________

(b) Write down the general word equation for the neutralisation reaction.

__________________________________________

(c) Give one example of solution K and L.(i) Solution K : ___________________________(ii) Solution L : ___________________________

(d)(i) What is the pH value of the solution in the conical flask at the end-point of the reaction?

___________________________________________

(ii) What is the colour of the universal indicator if excess of solution K has been added to the solution L?

____________________________________________

(e) State two uses of neutralisation in our daily life.

(i) ___________________________________________

(ii)____________________________________________ P6

P7

P8

Diagram 5.2

The experiment in Diagram 5.2 is thencarried out. After 30 minutes, 2cm3 of distilled water from the beaker is boiledwith Benedict solution. The result of theexperiment is shown in the table 5.1below.

Table 5.1

(i) What is present in the distilled waterat the end of the experiment.

___________________________________

(ii) Give one reason for your answer in5(b)(i).

___________________________________

(c) Diagram 5.3 shows part of the human digestive food.

Diagram 5.3

(i) Label Z at the humandigestive system in Diagram 5.3 that absorption of digested food take place.(ii) Complete the sequence ofCarbohydrate digestion in the human body.

(d) Diagram 5.4 shows part of a human small intestine.

Diagram 5.4

(i) Name the parts labelled P.

________________________

(ii) Name two end product ofdigested food that absorbed in the structure P.

________________________

Mouth

Distilled water

Visking tube

Starch solution +

glucose solution

5. (a) Diagram 5.1 shows a food pyramid.

Diagram 5.1

(i) Based on Diagram 5.1, writeThe given letters to represent each class of food into the food pyramid.

___________________________(ii) Give a factor that influences aperson’s balanced diet.

___________________________

(b) State the main function of liver inthe human body.

_____________________________(c) Table 5.2 shows the calorificvalue in 100g of food.

A student took 250g rice, 100g egg,50g cabbage and 150g beef curryfor his lunch.Calculate the calorific value for themeal taken.

Calorific value =.

(d) (i) State one characteristic of villus

Which increases the rate of absorption of digested foods.

__________________________

(ii) Explain your answer in 5(d)(i).

__________________________

5. Diagram 5.1 shows the various types of food that consume daily.

Diagram 5.1

(e) Name the main class of food found in

the food examples shown.

______

(b) Diagram 5.2 shows an experiment on

the absorption of food.

Type of food Calorific value (kJ/100g of food)

Rice 1500

Beef curry 2000

Cabbage 100

Banana 180

Fried egg 950

P9

P10

Diagram 6.2

Based on diagram 6.2, explain how to change the transformer above into step-down transformer.

__

_________________(e) (i) An air-conditioner is marked 2500 W, 240 V.

Calculate the value of current.

Power = Current x Voltage

(ii) Based on your answer in 5(e)(i), circle a suitable rating for a fuse to protect the air-conditioner.

6. Diagram 6.1 shows the energy transmissions and distribution system.

Diagram 6.1

(a) Based on diagram 6.1, identify the components labeled P and Q.

P:

Q:

(b) What is the function of Q?

(c) If P is closed for maintenance, what will happen to the electrical power supply in this are?

(d) Diagram 6.2 shows a transformer.

(d) Diagram 6.4 shows the connection of plugs of electrical appliances.

Diagram 6.5

State one possibility that will happen this connection.

(e) Diagram 6.6 shows a situation in a house.

Diagram 6.6

(i) State the problem happens in Diagram 6.6.

(ii) State one way to overcome that problem.

1A 5A 10A 13A

P11

P12

P, Q, R, and S

Group 1 Group 2Common characteristic

Letters of the energy sources

7. Figure 3 shows the types of energy sources P, Q, R, and S that can be found on Earth.

a) Based on Figure 3, state one characteristic of each of the energy sources P, Q, R, and S.P : ___________________________________Q :___________________________________R :____________________________________S :____________________________________

P

R

Q

S

b) Classify P, Q, R, and S in Figure 3 into two groups based on their common characteristics. Write the letters of the energy sources belonging to each group.

Example

Property

R, S, T, U

7. Figure below shows four sources of energy, R, S, T and U.

(a) State the source of energy shown in Figure . (i) R : ____________________________ (ii) S : ____________________________ (iii) T : ____________________________ (iv) U : ____________________________

R

T

S

U

(b) Classify R, S, T and U into two main groups based on common properties and give one example for each group.

P13

P14

P15

P16