biology question chapter 2

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  • 8/12/2019 Biology Question Chapter 2

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    Non organelle

    b) Non organelle Characteristics Functions

    1. Plasma/cell

    membrane

    -made of_________ &phospholipids

    -________ permeable

    -it regulates

    the_______of

    substances_____and

    out of the cytoplasm

    2. Cell wall

    (Plant cell)

    -made of _________.

    - _______ to all fluids

    -gives _____ to plant

    -provides mechanical

    ________ for the plant

    cell

    3. Cytoplasm -jelly-like matrix

    -medium whichorganelles are _______.

    -contains organic and

    inorganic substances

    -medium for _______reactions in the cell.

    http://chengmoh.blogspot.com/2011/01/non-organelle.htmlhttp://chengmoh.blogspot.com/2011/01/non-organelle.htmlhttp://chengmoh.blogspot.com/2011/01/non-organelle.html
  • 8/12/2019 Biology Question Chapter 2

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    2.1UNDERSTANDING CELL STRUCTURE AND FUNCTION

    Cell Structure : Organelle

    a) Organelle Characteristics Function1. Nucleus -the largest organelle

    -has _______ thread

    -control all _______ of the cell

    -contain _______ which determine the

    characteristics and cell functions.

    2. Vacoule

    (plant cell)

    -fluid filled sac enclosed

    by membrane called

    tonoplast.

    -the fluid is called

    __________.

    -vacoule in plants store chemicals such

    as water,________, ________, mineral,

    _________.

    -vacoule regulate _________in plant cell and

    paramecium

    -supports ___________ plants

    3.

    Mitochondrion

    -cylindrical shape

    -made up of ________

    membrane units

    -the site of _________ production through

    cellular respiration.

    Glucose + O2Energy + H2O + CO2

    -energy released is used for cellular _______.

    4. Lysosomes

    (animal cell)

    -contain hydrolytic ______.

    -membrane-bound sac

    -release enzyme to _______ material in food

    vacuoles in organisms like Paramecium

    -break down complex organic molecules (eg

    protein, lipid, polysaccharides & nucleic

    acid).

    -digest _____, dead or damage _______to

    enable a cell to renew itself

    5. Chloroplast

    (plant cell)

    -lens-shaped

    -contains __________.

    -traps _______ (energy) duringphotosynthesis

    6. Centriole

    (animal cell)

    -small cylindrical structure -form spindle fibres during cell ______ in

    animal cells

    7. Ribosome -small spherical organelles

    -either attached to RER

    or free

    -the site of _______ synthesis

    -use information from nucleus to make

    these proteins.

  • 8/12/2019 Biology Question Chapter 2

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    8. Endoplasmic

    reticulum (ER)

    i) RER

    ii) SER

    -The membranes of ER

    are continuous with the

    nuclear membrane

    -has ______ attached to itssurface

    -does not have _______

    attached to its surface

    i) RER_________ (made by ribosomes)

    to Golgi apparatus.

    -Protein are packaged in vesicles which

    are called ____________.

    ii) Synthesis of ________ (phospholipids

    and steroids)

    - _________ of drugs & poisons

    9. Golgi body/

    apparatus

    -stacks of flattened

    membranous sacs.

    -new membrane is

    continuously added to one

    end of Golgi apparatus and

    buds off as _______

    vesicles at the other end.

    -processing, _________ and ________ center

    of synthesized proteins (such as

    enzyme/hormone/antibody, phospholipids and

    carbohydrate & glycoproteins (such as

    mucus).

    -all these modified substances, enclosed in a

    _______ vesicle and bud off from the Golgi

    body to the cell membrane/other parts of the

    cell.