The darkly stained condensed region of chromatin is known as

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Important Questions on Cell : The Unit of Life

EASY

Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell

Proteins

P, Q,

and

R

are associated with an intact organellar membrane in a cell. If the intact organelle is treated with a high ionic strength buffer, only protein

R

remained associated with the membrane fraction. Based on this, one could conclude that:

MEDIUM

Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell

Match the columns and identify the correct option.

	Column I		Column II
A	Thylakoids	(i)	Disc-shaped sacs in Golgi apparatus
B	Cristae	(ii)	Condensed structure of DNA
C	Cisternae	(iii)	Flat membranous sacs in stroma
D	Chromatin	(iv)	Infoldings in mitochondria

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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell

Balbiani rings are sites of:

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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell

The chromosomes in which centromere is situated close to one end are:

MEDIUM

Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell

Mitochondria and chloroplast are:

(i) Semi - autonomous organelles

(ii) Formed by the division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery

Which one of the following option is correct?

EASY

Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell

The structures that are formed by stacking of organized flattened membranous sacs in the chloroplasts are:

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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell

Cellular organelles with membranes are:

MEDIUM

Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell

Select the mismatch.

EASY

Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell

Which one of the following cell organelles are enclosed by a single membrane?