biology question chapter 2
TRANSCRIPT
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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.
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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.
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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.