HARD
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Majority of proteins (of intracellular use) are not synthesized on:

A- Ribosomes produced in the nucleolus.
B- Ribosomes attached with ER and nuclear membrane.
C- Ribosomes present in the chloroplast.
D- Free ribosomes of eukaryotic cells.
 

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Important Questions on Cell The Unit of Life

EASY
Which of the following are not membrane-bound?
EASY
The chromosomes in which centromere is situated close to one end are:
MEDIUM

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
The structures that are formed by stacking of organized flattened membranous sacs in the chloroplasts are:
MEDIUM
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
EASY
Which one of the following cell organelles are enclosed by a single membrane?
EASY
Water-soluble pigments found in plant cell vacuoles are:
HARD
Select the correct matching in the following pairs:
EASY
Many ribosomes may associate with a single mRNA to form multiple copies of a polypeptide simultaneously. Such strings of ribosomes are termed as
EASY
A cell organelle containing hydrolytic enzymes is:
MEDIUM
Animal cells after removal of nuclei still contained DNA. The source of this DNA is:
EASY
The region of chromatin that is stained lightly is