Form 1 Science – Unit 2.3 Cell Organisation in the Human Body by cuiliqing

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									            Form 1 Science – Unit 2.3 : Cell Organisation in the Human Body

CELLS

1.      In a multicellular organism, each different cell has different structures to perform specific functions in
        the body.
2.      This is known as _________________________________________________.
3.      Humans      are   the   most       complex   multicellular   organism    with   about   60   000     billions   of
        __________________________________________________.
4.      These cells differ in ___________________ , _______________ , _______________________ and _____________________.
5.      Table below summarises different types of cells in the human body and their functions.
               Type of cell                                               Functions

                                       Name : ______________________________________
                                           Form the ___________________________________ of the skin;
                                           Control the ___________________________________ of substances between
                                            the body and the environment and between different body parts.


                                       Name : ______________________________________
                                           Play part in the ___________________________________ of various body parts


                                       Name : ______________________________________
                                           As the site of ______________________________________________
                                           To ___________________________ the body
                                           Play part in the _________________________________ of the body


                                       Name : ______________________________________
                                           Send _______________________________ from one part of the body to
                                            another



                                       Name : ______________________________________
                                           Transport ___________________________ from the lungs to all parts of the
                                            bdoy



                                       Name : ______________________________________
                                           Destroys foreign bodies such as harmful ________________________________


                                       Name : ______________________________________
                                           As the _________________________________ that fertilizes the ovum in sexual
                                            reproduction

                                       Name : ______________________________________
                                           As the _________________________________________


Form 1 Worksheet Unit 2.3 prepared by Ms Sue                                                                     Page 1
            Form 1 Science – Unit 2.3 : Cell Organisation in the Human Body

TISSUES

1.     A tissue is a _______________________________________________________________________________________________
       ____________________________________________________________________________________________________________
2.     Some tissues can be seen with the naked eye.
3.     Figure below describes some types of tissues in our body.

      Epithelial tissue                                   Nerve tissue
       ______________________                            __________________ nerve impulses
        the tissues underneath it.                         from one location to another location




          Connective tissue                                  Muscle tissue
        Connects and binds different tissues                Works with ____________ to move
         together                                             different body parts
        _____________________ the organs                    Causes ___________________________
                                                              to contract and relax


ORGANS

1.     A group of ________________________________________________________________________________________________
       ____________________________________________________________________________________________________________
2.     For example, the stomach is made up of epithelial tissue, muscle tissue, connective tissue and nerve
       tissue.




Form 1 Worksheet Unit 2.3 prepared by Ms Sue                                                                Page 2
           Form 1 Science – Unit 2.3 : Cell Organisation in the Human Body

3.     Figure below shows human main organs and their functions.




SYSTEMS

1.     Several organs connected to one another and ___________________________________________________________
       _____________________________________________________________________________________________ form a system.
2.     With system, the function can be performed more efficiently, in an organized manner.
3.     Examples of human body systems and their functions are as follows:-




Form 1 Worksheet Unit 2.3 prepared by Ms Sue                                                               Page 3
           Form 1 Science – Unit 2.3 : Cell Organisation in the Human Body




CELL ORGANISATION

1.     Cell organization of human cells is summarized as follows:


       __________    _________________   ________________    __________________   _________________________


2.     Example of cell organization is shown as below:-




Form 1 Worksheet Unit 2.3 prepared by Ms Sue                                                           Page 4

								
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