# spm perfect score biology 2010-set-3

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PERFECT SCORE BIOLOGY2010

BAHAGIAN SEKOLAH BERASRAMA PENUH DANSEKOLAH KLUSTER

KEMENTERIAN PELAJARAN MALAYSIA

PERFECTSCOREBIOLOGY2010

MODULE Form 5

Students Copy

DISEDIAKAN OLEH:

1. Puan Hasimah binti Azit - Sekolah Seri Puteri,Cyberjaya

2. Puan

Norma bTuan YaaSMS AlaShah3. Encikbin HussSMS KuaTerengg

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APER 3

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Question 1

1. A group of students carried out an experiment to study the effect of temperature on the rate of

plant transpiration.

Diagram 1.1(a) shows a set-up apparatus used in this experiment. The apparatus areprepared and carried out in laboratory temperature of 30 C. The whole process were repeatedby placing the set-up apparatus in different temperatures.

Air bubbles

Diagram 1 (b) shows the position of the air bubble in the beginning of the experiment.

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Table 1.1 shows the reading of temperature and location of air bubble in the tube ofpotometers after 5 minutes.

ThermometersThe location of air bubbles in tube (X) of

potometer after 5 minutes

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Table 1.1

(a) Complete the Table 1.1 by recording the temperature and the final position of air bubbles[3 marks]

(b) (i) Based on table 1.1 state two observations on the relationship between thetemperature and distance of air bubble travel in 5 minutes.

1. ..

2. ..

[3 marks]

(ii) State the inferences which corresponds to the observations in 1 (a)(i)

1. ..

2. ..

[3 marks]

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(c) Base on this experiment, complete the Table 1.2

Variables Method to handle the variable

Manipulated variable

Responding variable

Controls variable

[3 marks]

Table 1.2

(d) State the hypothesis for this experiment.

[3 marks]

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(e) The following list is part of the apparatus and material used in this experiment.

Thermometer, stop watch, ruler, capillary tube, plant leaves, water

Complete Table 1.3 by matching each variable with the apparatus and material used in thisexperiment.

Variable Apparatus material

Manipulated

Responding

Controlled

Table 1.3

[3 marks]

(f) (i) Base on the Table 1.1, construct the table and record the results of this experiment whichincludes following aspects:

:

Temperature (oC)

The distance of air bubble moved (cm)

Rate of transpiration (cm/minute)[3 marks]

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(ii) On the graph paper provided, draw a graph of rate of transpiration against the temperature.[3 marks]

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(iii) Based on the graph, state the relationship between the rate of transpiration and thetemperature

[3 marks]

(g) Based on experiment, define operationally what the transpiration is.

[3 marks]

(g) In another experiment, the apparatus is located under the bright sun shine.Predict the observation and explain your prediction.

[3 marks]

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Question 2:

An experiment is carried out by a group of student to study the effect of differentconcentrations of salt solution on the volume of urine produced.

Three boys with same body weight and age are selected. They were not allowed to drink anywater or taken any food in two hours before experiment and they were asked to empty theirbladder before starting the experiment.

The students were given three different types of solution to drink as shown in Table 1.1

Student Type of solution

A 300 ml mineral water

B 300 ml of 5 % sodium chloride solution.

C 300 ml of 10% sodium chloride solution.

Table 1.1

Urine samples of each student were taken after an hour is shown in Table 1.2

Student A B C

Volume ofurineproduced/ml

Table 1.2

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(a) Record the volume of urine produced by each student in Table 12.[3 marks]

(b) (i) Based on Table 1.3 state two observations on the volume of urine produced.

1. ..

2. ..

[3 marks](ii) State the inference which corresponds to the observations in 1 (a)(i)

1. ..

2. ..

[3 marks](c) Complete the Table 1.3 base on the experiment that was carried out.

Variables

Manipulated variable

Responding variable

Controlled variable

Table 1.3

Method to handle the variable

[3 marks]

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(d) State the hypothesis for this experiment.

[3 marks]

(e) (i) Base on the Table 1.3, construct the table and record the results of this experimentwhich includes the following aspects:

Concentration of sodium chloride solution.

Volume of urine collected

Water reabsorbed in kidney.

[Water reabsorbed in the kidney = volume of solution intake - volume of urine collected]

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[3 marks](ii) On the graph paper provided, draw the graph of water reabsorbed by kidneys against

the concentration of sodium chloride solution.[3 marks]

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(iii) State the relationship between water reabsorbed by kidneys and the concentration ofsodium chloride solution based on the graph in 1(e)(ii). Explain your answer.

[3 marks]

(f) Based on this experiment, give operation definition of osmoregulation.

[3 marks]

(g) In another experiment, student A was asked to drink 300 ml of water and sit in the aircondition room for an hour. Predict the volume of urine he will produced. Explain yourprediction.

[3 marks]

(h) The following list is part of the apparatus and material used in this experiment.

Stopwatch, Sodium chloride solution, Beaker, measuring cylinder ,Mineral water, Urine

Complete Table 1.6 by matching each variable with the apparatus and material used in thisexperiment.

Variable Apparatus Material

Manipulated

Responding

Controlled

Table 1.4[3 marks]

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Question 3.

Xylem vessel is adapted to transport the water from soil to the leaves. Xylem vessel is a longcontinues tube with lignified wall. Water from the root is pushed by root pressure into thexylem vessel.

An experiment is carried out by a group of student to study the effect of root pressure on thewater transport in the plant.Two healthy potted balsam plants are used.The shoot is cut off, leaving 5 cm of main stem above the soil. Rubber tubing is fit to the cutend and a glass tube is inserted to it. The apparatus is clamped to a retort stand as shown in

The other plant is prepared as above but all the roots are removed.2 ml of coloured water is added to the capillary tube and the initial level of water is marked.

Capillary tube

Ruler

Retort

stand

Pot

Diagram 1.1

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After 2 days, the final level of water column in capillary tube is observed as shown in Diagram1.2

Stem with

roots

Initial level: Final level:

cm cm

Stem withoutroots

Initial level:

cm

Diagram 1.2

Final level:

cm

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(a) Record the initial and final volume of water column in capillary tubes Diagram 1.2.[3 marks]

(b) (i) State two observations based on the experiment.

1. ..

2. ..

[3 marks](ii) State the inference which corresponds to the observations in 1 (a)(i)

1. ..

2. ..

[3 marks](c) Complete the Table 1.1 base on the experiment that was carried out.

Variables Method to handle the variable

Manipulated variable

Responding variable

Controlled variable

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[3 marks]TABLE 1.1

(d) State the hypothesis for this experiment.

[3 marks]

(e) (i) Base on the Table 1.1, construct the table and record the results of this experimentwhich includes the following aspects:

Condition of the stem (With root. Without root)

Initial height of water

Final height of water Increment in height

[3 marks]

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(ii) On the graph paper provided, draw a bar chart to show the increment of water andstem condition.

[3 marks]

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(iii) State the relationship between stem condition and increment of water in capillary tube.Explain your answer.

[3 marks]

(f) Based on this experiment, define operationally root pressure.

[3 marks]

(g) In another experiment, the same type of plant with more roots is used. Predict theincrement of water. Explain your prediction..

[3 marks]

(h) List all apparatus and materials used in this experiment in Table 1.2

Apparatus Material

TABLE 1.2

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Designing experiment

1. In human body, homeostasis is the maintenance process of internal environment. When achange occurs in the body, such as drinking a lot of water, the homeostasis mechanismwill regulate the changes back to normal condition.

Based on the above information, design an experiment to investigate the effect of volume ofwater drink to the urine production. You can use the common chemicals and scientificapparatus that can be found in the laboratory. Your report should include:

Problem statement

Variables

Hypothesis

Apparatus and materials

Procedures

How data is communicated

[17 marks]

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2. Transpiration is a process where a plant loses water by evaporation throughthe leaves. There are many factors affecting the rate of water lost from theplant. Air movement is one of the factors that affect the rate of transpiration.Based on the above statement, plan an experiment to investigate the effects of airmovement on the loss of water in a named plant.

The planning of your experiment must include the following aspects:

Problem statement

Hypothesis

Variables

List of apparatus and materials

Experimental procedure or method

Presentation of data

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