Cellas a Unit of Life

8/12/2019 Cellas a Unit of Life

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S

cienceform1

2012

Cellasaunitoflife


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2.1 what is cell?

Cell?

The _______________ unit that makes up living things and can carry out all

____________________________.

Cells are very ______________________ and can only e seen with the help o! a

__________________________.

"hat is inside the cell?

Cell memrane Cytoplasm #ucleus

$ place !or storing !ood andwaste materials and the place

where chemical reactions take

occur

Controls all activities o! the

cell

Controls the movement o!

sustances into or out o! the

cell

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$nimal cell

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'& #&

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Sc_unit_mjsc kt | (

Cell memrane )acuole #ucleus

Cytoplasm Chloroplast Cell wall

Controls the movement o!

sustances into or out o!

the cell

Supports and gives shape

to the cell

Controls all activities o! the

cell

Stored salt solution and

sugar solution

Stores !ood and waste

materials and the place

where chemical reactions

take place

Carries out photosynthesis

*#+C,--*-$ $#/ 0*-T+C,--*-$ $#+S0

rganism can e divided to&

whd%kt*nicellular organism 0ulticellular organism

3lant cell

#&

'&

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C,-- $#+S$T+# +# T5, 5*0$# 6/7

T73, $#/ '*#CT+# ' T5, C,--

,ach cell is di!!erent in si8e9 ________________ and _________________ and

it per!orm its particular _________________.

)arious type o! cell and its !unction are as !ollow&

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Simple organism that

consists o! ___________

only.

$re also known as unicellular

microorganism as they are

_______________9

_________________

organism.

$ll li!e ______________

takes place within the cell.

,:ample o! unicellular

organism&

$nimal &

_____________________

3lant

&______________________

_

0ost o! the unicellular

organisms live in wet places

such as ponds9 lakes9

_________ and ________.

rganism that consists o!

___________ than one cell.

6igger in si8e compared to

_______________________ as

they are made up o! great

numer o! cells.

$ variety o! cells are

__________ to carry out

speci!ic li!e ________________

such as

_____________________9______________________9

________________________.

The li!e processes o!

multicellular organism are more

____________ than the

unicellular organism.

,:ample o! multicellular

organism&

$nimal &

_____________________

3lant

&_______________________

5uman eing is a good

e:ample o!

_________________________.


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Sc_unit_mjsc kt | ;

Type of cell Function

+t looks like a microscopic tadpole which has

_________9 ody and ____________.

+t is the male gamete o! the male reproductive

system.

+t contains ______________ in!ormation !rom the

!ather to !ertili8e an egg.

+t is a dimpled disc


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Sc_unit_mjsc kt | =

organ.

6one cell 'ound in onds

+t holds and _____________ system o! our ody.

"hite lood cell +t ______________ acteria and germs

0uscle cell $llow the ___________________ o! the ody

$#+S$T+# ' C,-- +# 5*0$# 6/7

T+SS*, -,),-

$ group o! cell o! the same shape and ________________ that are per!orming

one particular _________________ is called a tissue.

Tissue contains similar cells which have e:perienced growth9 adaptation9

changes in their !eatures to carry out _________________ !unction.

The human ody consists o! !our main types o! tissue&

Major tissue group Function Example / location

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T+SS*,

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Sc_unit_mjsc kt | >

,pithelial tissue

Cover the ____________

and lines sur!aces o!

_____________

6lood vessel9 skin and

the lining o! the digestive

tract.

#erve tissue

esponds to

_____________ and

transmits

______________

6rain and ____________

cord

Connective tissue

Connects various sets o!

________________ and

provides ___________

Contain plenty o!

_____________

6lood9 one9 !at cells9

tendons9 ligament

0uscle tissue

Causes movement y

___________________

made up o! the muscle

cell that work with the

__________ to movedi!!erent part o! the ody

5eart9 wall o! digestive

tract9 skeletal muscle.

$# -,),-

$ !ew di!!erent type o! _______________ group together to !orm an

_______________. $n organ per!orms speci!ic _______________.

$n organ is responsile to per!orm one or more odily ___________________.

,:ample &

@internal organA < rain9 heart9 lung9 kidney

@sense organA B eyes9 ears9 nose9 skin and tounge

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$ll the cells in the organ are connected to _______________ vessels which supply

_______________ and ___________________.

S7ST,0 -,),-

$ group o! __________________ which work together to per!orm a speci!ic !unction

!orms a ________________.

The ody system carries out more ___________________ processes.

/i!!erent ody system enale the human to per!orm __________ processes more

________________.

The main ody system are as !ollows&

System Remarks

espiratory system rgans &

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To

_____________

parts o! the ody

To detects

_________

____

/etects

_________

_

Carries out

_________

e:change

3umps

___________ to

all part o! the

ody

_____________

!ood sustances

egulates

____________

_ temperature


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Sc_unit_mjsc kt | D

#ose9 trachea9 lung9 diaphragm

'unction&

Supplies ody with

________________

emoves ____________________

!rom the ody

,:cretory system rgans&

Eidney9 skin9 urinary ladder

'unction&

emove to:ic ____________ and

e:cretory products such as

___________9 mineral salts9 water9

and caron dio:ide.

6lood circulatory system rgans&

5eart9 lood vessel

'unction&

6rings ______________ and o:ygen

to cells

emoves dissolves ______________

!rom the cells

#ervous system rgan&

6rain9 spinal cord9 nerves

'unction&

eceives e:ternal _____________

and coordinates ______________

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Sc_unit_mjsc kt | 1F

eproductive system rgan&

'emale reproductive system& !allopian

tue9 ovary9 uterus

0ale reproductive system & testis9 penis

'unction& 3roduces ___________________

,nsures continuation o!

______________

/igestive system rgan&

0outh9 oesophagus9 stomach9

pancrease9 liver9 large intestine9 small

intestine.

'unction&

_______________ di!!erent classes o!

!ood into simple sustances that can e

easily ______________ y the ody.

0uscular system rgan&

0uscle

'unction&

Controls ody __________________

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Sc_unit_mjsc kt | 11

Skeletal system rgan&

Skull 9 one

'unction&

3rovides ____________ and protects

internal __________________

,ndocrine system rgan&

6rain9 pituitary gland9 thyroid gland9

adrenal gland9 pancrease9 testis9 ovary

'unction&

Coordinates and controls odyGs

!unctions such as ______________9

se:ual maturation and level o!_____________ in lood.

$#+S0 -,),-

$ll _________________ in the ody work together to produce an independent

_________________.

The systems cooperate with one another so that the human ody

__________________ as a whole.

5umans are di!!erent !rom other organism ecause the comple:ity o! their

______________. +t is uniHue and enales them to ___________________ and

analyse things.

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_____________

__

_____________

__

_____________

__

_____________

__

_____________

__

_____________

__

_____________

__

_____________

__

CE

T!SS"E

#R$%&

S'STEM

#R$%&!S

M

)arious cells @lood

cell9 one cellA


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Sc_unit_mjsc kt | 1(

S,CT+# $

1. /iagram 1 shows two types o! cells.

/iagram 1

"hich o! the !ollowing comparisons is

true?

0 #

$. 0ai8e cell 6alsam cell

6. Chicken cell 0ai8e cell

C. Chicken cell ,arthworm cell/. 0ushroom cell Chicken cell

2. /iagram 2 shows the cell organisation.

/iagram 2

"hich o! the !ollowing is an e:ample o!

stage "?

$. Sperm

6. 0outh

C. 0uscle

/. 6lood plasma

(. "hich o! the !ollowing cell does not have

nucleus?

$. Cheek cell

6. 0uscle cell

C. ed lood cell

/. "hite lood cell

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4. /iagram ( shows the structure o! cell.

/iagram (

+n which organism can this type o! cell e !ound?

$. 0ouse

6. rchid

C. rasshopper

/. Sparrow

;. /iagram 4 shows the seHuence o! cell

organi8ation in humans.

/iagram 4

"hich pair o! organ 3 and system J is

matched correctly?

rgan 3 System J

$. ,ye #ervous

6. -ung espiratory

C. -iver Skeletal/. Eidney /igestive

=. "hich o! the !ollowing statements is true

aout multicellular organism?

$. 3addy plant is a multicellular organism

6. $ll plants are multicellular organisms

C. $ll animals are multicellular organisms

/. $ll multicellular organism live on land

>. /iagram ; shows a type o! tissues in the

human ody.

/iagram ;

The tissue is

$. #erve tissue

6. 0uscle tissue

C. ,pithelial tissue

/. Connective tissue

. "hich o! the !ollowing is unicellular

organism?

$.

6.

C.

/.

D. /iagram = shows an organism.

/iagram =

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Sc_unit_mjsc kt | 1;

"hich o! the !ollowing organisms is classi!ied in

the same group as organism in /iagram =?

$.

6.

C.

/.

1F. The !ollowing are steps !or preparing a slide

o! an onion cell.

3 B peel the inner epidermal layer o! the

onion

J B asor e:cess iodine

B add one drop o! iodine solution

S B place the specimen in the middle o! a

clean slide

T B cover the onion cells with a cover slip

"hich o! the !ollowing seHuences is correct

to prepare an onion slide?$. 39 S9 9 J9 T

6. S9 39 9 J9 T

C. 39 S9 9 T9 J

/. S9 39 T9 9 J

11. "hy humans are considered a comple:

organism?

+. 5uman have many speciali8ed cells

++. 5uman have a ody system

+++. 5uman ody cells are organi8ed into

tissues9 organs and systems

$. + only6. + and ++ only

C. ++ and +++ only

/. +9 ++ and +++

12. /iagram > shows a plant cell. "hich o! the

structures $9 69 C or / controls the activity o!

the plant cell?

/iagram >

1(. "hich o! the !ollowing microorganisms is

multicellular?

$.

6.

C.

/.

14. /iagram shows a plant cell.

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Sc_unit_mjsc kt | 1=

/iagram

"hat is 7?

$. #ucleus

6. Cytoplasm

C. Chloroplast

/. Cell memrane

1;. /iagram D shows the organs in the human

ody system.

/iagram DThe system is

$. /igestive system

6. ,:cretory system

C. espiratory system

/. eproductive system

1=. ,ach cell that !orms muscle tissues has the

same

+. Structure

++. 'unction

+++. Shape

$. + only

6. + and ++ only

C. ++ and +++ only

/. +9 ++ and +++

1>. The purpose o! staining cells with iodine

solution e!ore oserving them under a

microscope is

$. To kill the cells

6. To see the cells clearly

C. To stimulate the cells to move/. To increase the si8e o! the cells

1. /iagram 1F shows a sample o! an onion

cell.

/iagram 1F

"hich structures9 $9 69 C or / gives support

and maintains the shape o! the cell?

1D. /iagram 11 shows an organism.

/iagram 11

"hich o! the !ollowing is true aout the

organism?

$. +t reproduces y !orming spores

6. +t is unicellular organism

C. +t is a multicellular organism

/. +t makes its own !ood

2F. /iagram 12 shows a type o! cell in the

human ody.

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Sc_unit_mjsc kt | 1>

/iagram 12

+t is called

$. $ nerve cell

6. $ muscle cell

C. $n epithelial cell

/. $ sperm cell

SECT!#& (

1. /iagram 1 shows a plant cell.

/iagram 1.1

aA -ael 3 and J using the !ollowing words.

Cell

memrane

#ucleus )acuole

K2 marksL

A Structure help in the process o!

photosynthesis. -ael in /iagram 1.1

K1 markL

cA /iagram 1.2 shows a cell.

/iagram 1.2

State two di!!erences o! characteristic

etween /iagram 1.1 and /iagram 1.2.

/i!!erences /iagram

1.1

/iagram

1.2

1.

2.

K2 marksL

;

2. /iagram 2 shows !our types o!

microorganisms.

/iagram 2

aA 6ased on your oservations in /iagram

29 state one characteristic !or each o!these microorganisms.

iA Spirogyra &

________________________

iiA $moea &

_________________________

iiiA 5ydra &

___________________________

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Sc_unit_mjsc kt | 1

ivA ,uglena &

_________________________

K4 marksL

A Classi!y the microorganisms in

/iagram 2 into two groups ased on their

common characteristics.

K4 marksL

(. /iagram (.1 shows cells 0 and #.

/iagram (.1

aA #ame cells 0 and # in the space

provided in /iagram (.1.

K2 marksL

A 3 is where photosynthesis takes place.

-ael 3 in /iagram (.1.

K1 markL

cA /raw lines to match the structures o! the

cell and their !unctions. /raw lines as

shown elow.

K2 marksL

dA #ame one similar structure that can e

!ound in oth cells 0 and #.

_________________________________

___

K1 markL

=

4. /iagram 4 shows three organisms.

/iagram 4

aA "hat is meant y the word

MmicroorganismG?

_________________________________

___

K1 markL

A 6ased on diagram 49 which organisms is

a unicellular plant?

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Sc_unit_mjsc kt | 1D

_________________________________

___

K1 markL

cA "hat is the !unction o! I?

_________________________________

___K1 markL

dA ive two similarities etween

paramecium and chlamydomonas.

i.________________________________

___

ii._______________________________

____

K2 marksL

eA State the haitat o! the organisms aove.

_________________________________

___

K1 markL

=

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Cellas a Unit of Life