2017mediumThe pigment that protects plants from damage by UV radiation is(a)Xanthophyll(b)Chlorophyll(c)Carotenoid(d)PhycocyanShow answer Save Listen ShareOpen ↗
2016mediumPungency in chillies is due to the presence of:(a)Lycopine(b)Capsisine(c)Carotene(d)AnthocyaninShow answer Save Listen ShareOpen ↗
2016mediumWhich of the following accounts for the red colour of tomato?(a)Capsaicin(b)Carotene(c)Anthocyanin(d)LycopeneShow answer Save Listen ShareOpen ↗
2015mediumIntraxylary phloem is found in-(a)Cheiranthus(b)Boerhavia(c)Dracaena(d)SterculiaShow answer Save Listen ShareOpen ↗
2015mediumThe 'xylem' in plants is responsible for–(a)Transportation of food(b)Transportation of amino acid(c)Transportation of water(d)Transportation of oxygenShow answer Save Listen ShareOpen ↗
2014mediumThe most abundant element found in the human body is–(a)Iron(b)Sodium(c)Oxygen(d)IodineShow answer Save Listen ShareOpen ↗
2013mediumWhich of the following organelle is called 'Power House' of the cell?(a)Ribosome(b)Mitochondria(c)Cell membrane(d)CentrosomeShow answer Save Listen ShareOpen ↗
2012mediumChlorophyll contains:(a)Iron(b)Copper(c)Magnesium(d)ManganeseShow answer Save Listen ShareOpen ↗
2012mediumWhich of the living tissues acts as the carrier of organic nutrients in higher plants ?(a)Xylem(b)Phloem(c)Cortex(d)EpidermisShow answer Save Listen ShareOpen ↗
2010mediumWhich of the following organelle is called the “suicidal bags” of the cell?(a)Lysosome(b)Ribosome(c)Nucleosome(d)Golgi bodyShow answer Save Listen ShareOpen ↗
2010mediumThe most abundant substance found in protoplasm–(a)Protein(b)Fat(c)Minerals(d)WaterShow answer Save Listen ShareOpen ↗
2009mediumWhich of the following do not have cell membrane?(a)Ribosome(b)Lysosome(c)Golgi body(d)MitochondriaShow answer Save Listen ShareOpen ↗
2008mediumWhich of the following cell organelles play the most significant role in protein synthesis?(a)Lysosome and Centrosome(b)Endoplasmic reticulum and Ribosome(c)Golgi apparatus and Mitochondria(d)Lysosome and MitochondriaShow answer Save Listen ShareOpen ↗
2008mediumThe elastic tissue that connects the bones together, is called-(a)Ligament(b)Fibrous tissue(c)Fibrin(d)Muscular tissueShow answer Save Listen ShareOpen ↗
2008mediumCause of Red colour in Tomato is :(a)Capsesin(b)Lycopene(c)Xanthophyll(d)None of the aboveShow answer Save Listen ShareOpen ↗
2006mediumThe age of tree is determined by calculating :(a)Leaves of tree(b)Numbers of annual rings on its trunk(c)branches of tree(d)its lengthShow answer Save Listen ShareOpen ↗
2006mediumMitochondria is found in –(a)All prokaryotic cell(b)All eukaryotic cell(c)All bacteria(d)Nucleus of prokaryotic cellsShow answer Save Listen ShareOpen ↗
2004mediumRibosomes are called as site of _____.(a)Protein formation(b)Photosynthesis(c)Fat formation(d)RespirationShow answer Save Listen ShareOpen ↗
2001mediumProkaryotic cells does not contain –(a)Nucleus(b)Ribosome(c)DNA(d)Cell wallShow answer Save Listen ShareOpen ↗
1999mediumProkaryotic is different from Eukaryotic:(a)Absence of distinct memberane(b)Chromosome(c)9 + 2 structure of flagella(d)DNA - protein linkageShow answer Save Listen ShareOpen ↗
1994mediumThe lysosomes is formed by–(a)Mitochondria(b)Centriole(c)Plasma membrane(d)Golgi bodyShow answer Save Listen ShareOpen ↗
1991mediumHow does the plant cell differ from the animal cell?(a)Mitochondria(b)Cell wall(c)Presence of protoplasm(d)NucleolusShow answer Save Listen ShareOpen ↗