Both animal and plant cells have a well defined cell wall.
In prokaryotes there are no membrane bound organelles.
Cells are formed by de novo from abiotic materials.
C.
In prokaryotes there are no membrane bound organelles.
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New cells generate from
bacterial fermentation
regeneration of old cells.
pre-existing cells.
abiotic materials.
Which of the following is not correct?
Robert Brown discovered the cell.
Schleiden and Schwann formulated the cell theory.
Virchow explained that cells are formed from pre-existing cells.
A unicellular organism carries out its life activities within a single cell.
Match the following
A.
Cristae
(i)
Flat membranous sacs in stroma
B.
Cisternae
(ii)
Infoldings in mitochondria
C.
Thylakoids
(iii)
Disc-shaped sacs in Golgi apparatus.
Name two cell-organelles that are double membrane bound. What are the characteristics of these two organelles ? State their function and draw labelled diagrams of both.
