Q. No.Which of the following is true about chloroplast
(1)one in chlamydomonas
(2)20-40 in leaf mesophyll cell
(3)present in different shapes
(4)All of these
Which of the following is true about stroma except
(1)contains enzymes for carbohydrates and proteins synthesis
(2)Chlorophyll pigments are present in stroma
(3) contains the most abundant protein of the universe
(4)contains small, dsDNA molecules
The common feature of mitochondria and plastids
(1) both are double membranous cell organelles
(2)Both contains 70s ribosomes
(3)both have dsDNA
(4)All of the above
A number of organised flattened membranous sacs are called
(1)thylakoids
(2)starch granules
(3)Quantasomes
(4)None of these
Chromatin can be observed in
(1)Interphase nucleus
(2)dividing nucleus
(3)Both A and B
(4)Nuclei of any stage
Through the nuclear pore the movement of _____and ______takes place
(1)RNA and proteins
(2)DNA and RNA
(3)DNA and proteins
(4)RNA and carbohydrates
Nucleus is absent in
(1)erythrocytes of mammals
(2)sieve tube cells of Vascular plants
(3)Both A and B
(4)Companion cells of vascular bundle
Which of the following is true about nucleolus?
(1)membrane less structure
(2)active site for rRNA synthesis
(3)numerous in cells which are involved in protein synthesis
(4)All of the above
Which of the following is true about chromosome
(1)nucleoprotein
(2)23 pairs in single human diploid cell
(3)Contains primary constriction
(4)All of these
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