Choose the incorrect option.

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(C) The correct answer is $C$. Centrioles are cylindrical structures composed of microtubule triplets made of tubulin protein. They are typically foun

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Centriole - Present in all plants and animals

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(C) The correct answer is $C$. Centrioles are cylindrical structures composed of microtubule triplets made of tubulin protein. They are typically found in animal cells and some lower plant cells (like certain algae and bryophytes),but they are absent in the cells of higher plants (angiosperms and gymnosperms). Therefore,the statement that centrioles are present in all plants and animals is incorrect. Ribosomes are composed of $rRNA$ and proteins. Ribozymes are $RNA$ molecules that possess catalytic activity,thus acting as enzymes.

Column-$I$	Column-$II$
$A$. Golgi apparatus	$I$. Storage
$B$. Mitochondria	$II$. Photosynthesis
$C$. Vacuoles	$III$. Transport
$D$. Grana	$IV$. Secretion
	$V$. Respiration

Column-$I$	Column-$II$
$(1)$ Typical bacterial	$(p)$ Site of protein synthesis
$(2)$ Ribosome	$(q)$ $1-2 \ \mu m$
$(3)$ Long and branched	$(r)$ Control of bacterial transformation
$(4)$ Plasmid	$(s)$ Nerve cell

List-$I$	List-$II$
$(a)$ Cristae	$(i)$ Primary constriction in chromosome
$(b)$ Thylakoids	$(ii)$ Disc-shaped sacs in Golgi apparatus
$(c)$ Centromere	$(iii)$ Infoldings in mitochondria
$(d)$ Cisternae	$(iv)$ Flattened membranous sacs in stroma of plastids

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Match column-$I$ with column-$II$ and select the correct option.
Column-$I$ Column-$II$
$A$. Golgi apparatus $I$. Storage
$B$. Mitochondria $II$. Photosynthesis
$C$. Vacuoles $III$. Transport
$D$. Grana $IV$. Secretion
$V$. Respiration

Cytoplasmic streaming movement is the characteristic of

The normal $pH$ of protoplasm is:

Match the following.
Column-$I$ Column-$II$
$(1)$ Typical bacterial $(p)$ Site of protein synthesis
$(2)$ Ribosome $(q)$ $1-2 \ \mu m$
$(3)$ Long and branched $(r)$ Control of bacterial transformation
$(4)$ Plasmid $(s)$ Nerve cell

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