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Name : ____________________________________________ Form : ________

Section A(30 marks)

Answer all the questions below.

1 P, Q,R, Sand Tare the different steps in a scientific investigation.

P Analsing and interpreting data

Q Form a hpothesis

R !a"ing a concl#sion

S $dentifing varia%les

T &arr o#t the e'periment

hat is the correct order of the steps in a scientific investigation

A P* S* Q* T*R + S* Q* T*P*R

& R*P* T* Q* S T*R* S*P* Q

- hich of the folloing as can %e #sed to present the data collected in an e'periment

$ /a%le $$$ +ar chart

$$ ie chart $ 2istogram

A $, $$ and $$$ onl + $, $$ and $ onl

& $$, $$$ and $ onl $, $$, $$$ and $

3 $n a scientific investigation to st#d the relationship %eteen #antit Pand #antit Q, the #antit

ofPis changed and the effect on #antit Q is o%served. 4n the other hand, #antitRremains the

same thro#gho#t the e'periment. hich of the folloing is tr#e

MANIPULATED

VARIABLE

RESPONDING

VARIABLE

CONSTANT

VARIABLE

A R Q P

+ Q P R

& P Q R

R P Q

5 hich of the folloing is not a #antitative data

A +lood gro#p + +lood press#re

& +od eight 2eight

6 iagram 1 shos the ho%% of 50 st#dents in 5 7emilang.

1

SEKOLAH MENENGAH KEBANGSAAN (LELAKI) METHODIST

PEPERIKSAAN PERTENGAHAN TAHUN 20!

TINGKATAN !

8od 8ertas : 1661 enedia : n. A. 9#darshini

!ata elaaran : 9ains enema" : ;n.

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iagram 1

hat is the percentage of st#dents ho li"e to pla %as"et%all

A 30? + 60?

& 50? @0?

@ hich of the folloing is not the no%le val#e hen cond#cting a scientific investigation

A 2onestl and acc#rate + 4%ective and logical

& &reative and emotional &ritical and analtic

iagram - shos to st#dents plaing %adminton.

iagram -

hich of the folloing are involved in the %od coordination of the st#dent

A !#sc#lar and nervo#s sstem

+ ;ndocrine and m#sc#lar sstem

& +lood circ#lator and respirator sstem

Nervo#s and endocrine sstem

B iagram 3 shos the str#ct#re of a ne#rone.

iagram 3

hich of the folloing str#ct#re is correctl matched to its f#nction

St"#ct#"e $#nction

-

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A0 &arr imp#lses to the effector

+C A so#rce of food

&D 9peed #p the transmission of imp#lses

9 &ontrols the activities of the cell

> iagram 5 shos classification of h#man nervo#s sstem.

iagram 5

hich of the folloing can represent W,X, YandZ

% & '

A +rain &ranial nerves 9pinal cord 9pinal nerves

+ &ranial nerves 9pinal nerves +rain 9pinal cord

& +rain 9pinal cord &ranial nerves 9pinal nerves

9pinal cord 9pinal nerves +rain &ranial nerves

10 iagram 6 shos three tpes of ne#rones.

3

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iagram 6

hich of the folloing is tr#e

Sen)o"* ne#"one Re+,* ne#"one Moto" ne#"one

A C 0 D

+ D 0 C

& C D 0

0 C D

11 iagram @ shos the transmission of nerve imp#lse in a refle' arc.

iagram @

hich of the folloing actions has the same imp#lse patha

A ;ating + laing piano

& atching television ithdra o#r hand from a hot o%ect

1- iagram shos a process that ta"e place d#ring cell division.

iagram

hat is the process a%ove "non as

A !itosis + !#tation

& Fertilisation &rossing over

13 iagram B shos the stages in the process of mitosis.

5

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iagram B

hat is the correct arrangement of the stages in mitosis

A R, S,P, Q + S, Q,P,R

& P, S, Q,R Q,R, S,P

15 iagram > shos the crossE%reeding %eteen a red floer plant ith a hite floer plant.

iagram >

hat is the phenotpic ratio of the red floer plant to the hite floer plants in the offspring

A - red : 1 hite + 1 red : - hite

& 1 red : 1 hite - red : - hite

16 A fr#it fl has fo#r pairs of chromosomes in its cell. hat is the chromosome n#m%er of its gamete

A 5 + B& @ 10

1@ iagram 10 shos the inheritance of f#r colo#r in cats.

iagram 10

/he dominant allele that prod#ces %lac" f#r is represented % +. /he recessive allele that prod#ces

hite f#r is represented % %. hat are the genotpes of the parents

M,+e $e-,+e

A ++ +%

+ +% +%

& +% %%

%% +%

1 A man ho can roll his tong#e has gene Aa, and marries a oman ho can also roll her tong#e has

gene Aa too. hat is the pro%a%ilit in percentage that their children cannot roll their tong#e

6

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A -6 ? + 6 ?

& 60 ? 100 ?

1B A married co#ple has fo#r da#ghters. hat is the pro%a%ilit that the fifth child is a %o

A -0 ? + B0 ?

& 60 ? 100 ?

1> iagram 11 shos the fertiliation of to ov#ms % spermXand sperm Y.

iagram 11

hat is the gene content of spermXand sperm Y

S.e"- & S.e"- '

A 55 G HH 55 G H iagram 1> shos a eriodic /a%le.

iagram 1>

hich of the folloing gro#ps, A, +, & and are no%le gases

30 hat is the %oiling point of p#re ater after adding some salt into it

A 0J& + 100J&

& >@J& 103J&

SECTION B (30 marks)

Answer all the questions below.

1 iagram -0 shos an e'periment setE#p to st#d the reactivit of magnesi#m ith dil#te hdrochloric

acid.

iagram -0

/he vol#me of gas collected is recorded for times for each min#te. /a%le - shos the res#lts of the

e'periment.

B

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/ime

(min#tes)0 1 - 3 5 6 @

ol#me of

gas collected

(cm3)

0 16 -B 3> 55 5 5

/a%le -

(a) +ased on /a%le -, dra a graph of vol#me of gas against time.

K3 marksL

(%) +ased on the graph in (a), state the relationship %eteen the vol#me of the gas collected and the

time in the first fo#r min#tes.

_____________________________________________________________________________

K1 markL

(c) 7ive one other e'ample of s#%stances that can replace magnesi#m in this e'periment.

______________________________________________________________________________

K1 markL- iagram -1 shos an e'periment to st#d the electrical cond#ctivit of lead ($$) %romide.

>

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iagram -1

(a) hat is the inference for the e'periment

______________________________________________________________________________

K1 markL(%) $dentif the varia%les in the e'periment.

(i) !anip#lated varia%le:

____________________________________________________________________________

(ii) Desponding varia%le:

___________________________________________________________________________

K- marksL

(c) hat can %e o%served in the e'periment 9etB

______________________________________________________________________________

K1 markL

(d) 9tate the reading of ammeter for e'periment 9etB.

______________________________________________________________________________

K1 markL

3 iagram -- shos an e'periment to st#d the e'tension of the spring #sing loads of different mass.

/he res#lt o%tained is recorded in /a%le 3.

10

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iagram --

!ass of load M g ;'tension of spring M cm

10 -

-0 5

30 @

50 B

60 10

/a%le 3

(a) 9tate one hpothesis for this e'periment.

_______________________________________________________________________________

K1 markL

(%) 9tate the varia%les in this e'periment.

(i) !anip#lated varia%le:

_____________________________________________________________________________

(ii) Desponding varia%le:

_____________________________________________________________________________

(iii) Fi'ed varia%le:

_____________________________________________________________________________

K3 marksL

(c) redict the e'tension of the spring if a 6 g of load is added on it.

_______________________________________________________________________________

K1 markL

5 iagram -3 shos an e'periment to st#d the effect of adding salt on the %oiling point of ater.

11

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iagram -3

/he res#lts of the e'periment are recorded in /a%le 5.

9#%stance +oiling point (J&)

#re ater 100

#re ater G 9alt

/a%le 5

(a) &omplete /a%le 5.

K1 markL

(%) efine the meaning of %oiling point.

______________________________________________________________________________

K1 markL

(c) hat is the inference for the e'periment

______________________________________________________________________________

K1 markL

(d) 9tate the effect of sealed t#%eXon the %oiling point of the ater.

______________________________________________________________________________

K1 markL

(e) ;'plain o#r anser in (d).______________________________________________________________________________

K1 markL

6 iagram -5 shos the endocrine sstem of a oman.

1-

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iagram -5

(a) hich of the gland serve as the master gland

_____________________________________________________________________________

K1 markL

(%) Name the gland W.______________________________________________________________________________

K1 markL

(c) hat is the effect of deficienc of hormone secreted % gland W

______________________________________________________________________________

K1 markL

(d) 9tate one f#nction of the hormone secreted % gland Y.

______________________________________________________________________________

K1 markL

(e) iagram -6 shos to individ#als P and Q. $ndivid#al Phas a%normal height as compared to

individ#al Qho has normal height.

iagram -6

(i) hat is the ca#ses of the a%normal height in individ#alP

___________________________________________________________________________

K1 markL

(ii) Name the endocrine sstem hich is responsi%le in (e)(i).

___________________________________________________________________________

K1 markL

@ iagram -@ shos a girl doing her homeor".

13

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iagram -@

(a) 9tate the tpe of action a%ove.

______________________________________________________________________________

K1 markL

(c)iagram - shos the parts of the h#man nervo#s sstem.

iagram -

9tate the part that controls the tpe of action in (a).

______________________________________________________________________________

K1 markL

(d) /he flo chart %elo shos the patha of imp#lses hen the girl is riting.

(i) hat is ne#roneM

___________________________________________________________________________

K1 markL

(ii) $dentif T.

___________________________________________________________________________

K1 markL

SECTION C1(10 marks)

Answer the question below.

15

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1 9t#d the folloing statement.

Te e+ect"ic,+ con3#cti4itie o -et,+ ,n3 non5-et,+ ,"e 3ie"ent1

marksL

END O$ QUESTION PAPER

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