Question 21
Identify the correct statement.

(a) Tissue is a group of dissimilar cells.
(b) An organ consists of similar cells.
(c) Vacuoles are not found in plant cells.
(d) Prokaryotes do not have nucleus.

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Solution

(d) Prokaryotes do not have nucleus.

The nucleoid (meaning nucleus-like) is an irregularly-shaped region within the cell of a prokaryote that contains all or most of the genetic material, called genophore. In contrast to the nucleus of a eukaryotic cell, it is not surrounded by a nuclear membrane.

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Similar questions

Which of the following is correct:

(a) Cells of all living organisms have a nucleus.

(b) Both animal and plant cells have a well defined cell wall.

(d) Cells are formed de novo from abiotic materials.

Pick the correct set of difference between plant and animal cells from the following table.

\begin{matrix} A n i m a l c e l l s & P l a n t c e l l s i . A n i m a l c e l l s h a v e l a r g e s i n g l e v a c u o l e & P l a n t c e l l s h a v e m a n y, s m a l l v a c u o l e s i i . A n i m a l c e l l s d o n o t h a v e p l a s t i d s & P l a n t c e l l s h a v e p l a s t i d s i i i . A n i m a l c e l l s d o n o t h a v e c e l l w a l l & P l a n t c e l l s h a v e c e l l w a l l o u t s i d e t h e p l a s m a m e m b r a n e i v . A n i m a l c e l l s a r e g r e e n i n c o l o u r & P l a n t c e l l s a r e n o t c o l o u r e d v . L y s o s o m e s a r e a l w a y s p r e s e n t & L y s o s o m e s a r e r a r e \end{matrix}

Pick the correct set of differences between plant and animal cells from the following table.

\begin{matrix} Animal cells & Plant cells i.Animal cells have large single vacuole & Plant cells have many small vacuoles ii.Animal cells do not have plastids & Plant cells have plastids including chloroplast iii.Animal cells do not have cell wall & Plant cells have cell wall outside the plasma membrane iv.Animal cells are green in color & Plant cells are not colored v. Lysosomes are always present & Lysosomes are rare \end{matrix}

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