Page 19 - SCERT Kerala State Syllabus 8th Standard Basic Science Textbooks English Medium Part 1_Neat

Haven't you now learnt about cell organelles that perform
different physiological functions in a plant cell? Observe the
illustration showing various cell organelles in the animal cell.

Cell membrane
Nucleus

Centrosome Endoplasmic
reticulum
Ribosome
Golgi complex
Cytoplasm
Mitochondrion Lysosome

Centrosome
Fig. 1.8
Centrosome is the cell
Animal cell
organelle that is found
only in animal cells. The Compare the plant cell and the animal cell and complete the
centrioles that play a illustration given below.
major role in cell
division are seen in the
centrosome.
Animal cell Plant cell
Nucleus

Cell membrane
Lysosome ........................................ ..................... Cell wall
Lysosome contains the Lysosome ..................... ........................................
.....................
digestive enzymes that ........................................
.................
are required for the
destruction of foreign
substances entering the
cell. It is seen in animal
cells. Illustration 1.4

Prepare an illustration like this showing the differences
between prokaryotes and eukaryotes. Though organisms
show diversity in their external characters, their cells show
resemblances in their structure and function. This unity at
the micro level is a clear evidence of the interrelationship of
organisms.

18 Basic Science VIII