Choose the correct option regarding cell stru | vedclass

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Question

(C) Let us analyze the statements:$a-$ Erythrocytes of many mammals (like humans) are enucleated at maturity. This is correct.$b-$ Sieve tube cells of

Vedclass · Accepted Answer

$a-$ Cytoskeleton contains microfilaments made up of protein.$b-$ $70S$ ribosomes are present in chloroplasts.

Vedclass · Answer

(C) Let us analyze the statements:$a-$ Erythrocytes of many mammals (like humans) are enucleated at maturity. This is correct.$b-$ Sieve tube cells of vascular plants lack a nucleus at maturity. This is incorrect.$c-$ Centrioles are not membrane-bound organelles. This is incorrect.$d-$ Centrioles consist of triplets of microtubules,not pairs. This is incorrect.$e-$ The cytoskeleton is composed of microfilaments,intermediate filaments,and microtubules,which are proteinaceous. This is correct.$f-$ Chloroplasts contain $70S$ ribosomes (prokaryotic type). This is correct.$g-$ Aleuroplasts store proteins,not pigments. Chloroplasts and chromoplasts are responsible for plant color. This is incorrect.$h-$ Vacuoles occupy up to $90\%$ of the volume of plant cells,not animal cells. This is incorrect.Therefore,option $C$ contains two correct statements.

Column-$I$	Column-$II$
$(a)$. Glyoxysome	$(i)$. Plant lysosomes
$(b)$. Sphaerosome	$(ii)$. Glyoxylate cycle
$(c)$. Mitochondria	$(iii)$. Photorespiration
$(d)$. Peroxisome	$(iv)$. Succinate dehydrogenase

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

Choose the correct option regarding cell structure and components:

Similar Questions

Which of the following statements is correct?

Match the column $I$ with column $II$.
Column-$I$ Column-$II$
$(a)$. Glyoxysome $(i)$. Plant lysosomes
$(b)$. Sphaerosome $(ii)$. Glyoxylate cycle
$(c)$. Mitochondria $(iii)$. Photorespiration
$(d)$. Peroxisome $(iv)$. Succinate dehydrogenase

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

Which organelle increases in quantity within cancerous cells?

Choose the correct pair:

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