15785.Cell wall consists of
Lignin, hemi cellulose, pectin and lipid
Lignin, hemi cellulose, pectin and cellulose
Lignin hemi cellulose, protein and lipid
Hemi cellulose, cellulose, tubulin and lignin
15786.Tonoplast is a differentially permeable membrane surrounding the _____.
Vacuole
Cytoplasm
Mitochondria
Nucleus
15787.Polysome is formed by
Ribosomes attached to each other in a linear arrangement
Several ribosomes attached to a single mRNA
Many ribosomes attached to a strand of endoplasmic reticulum
A ribosome with several subunits
15789.When a ripe tomato is pricked with a needle a watery fluid comes out. This fluid is stored in
Vacuole
Plastid
Cytoplasm
Nucleus
15790.Vacuole in a plant cell :
Lacks membrane and contains water and excretory substances
Is membrane-bound and contains storage proteins and lipids
Is membrane-bound and contains water and excretory substances
Lacks membrane and contains air
15791.Cytoskeleton is made up of
Proteinaceous filaments
Calcium carbonate granules
Callose deposits
Cellulosic microfibrils
15792.The rough endoplasmic reticulum (RER) in the cells are because of the presence of
Mitochondria associated with ER
Ribosomes on the surface of ER
Volutin granules on the surface of ER
Sulphur granules on the surface of ER
15794.A nucleosome is a portion of the chromonema containing ______.
both DNA and histones
only histones
both DNA and RNA
only DNA