MCQ The Fundamental Unit of Life Chapter 5 Class 9 Science Advertisement MCQ’s For All Chapters – Science Class 9th 1. The thread-like structure visible in a non-dividing nucleus is—Chromatin materialChromosomesCentrioleRibosomeQuestion 1 of 202. Cells lacking a well-defined nucleus are called—EukaryoticProkaryoticUnicellularMulticellularQuestion 2 of 203. The fluid content inside the cell membrane is known as—ProtoplasmCytoplasmChromatinNucleoplasmQuestion 3 of 204. Viruses are considered non-living because they—Lack DNALack membranesCannot moveLack proteinQuestion 4 of 205. The cell organelle that forms a network of membranes for transport is—Golgi apparatusEndoplasmic reticulumMitochondriaPlastidQuestion 5 of 206. Rough Endoplasmic Reticulum appears rough due to presence of—VacuolesRibosomesLipidsCiliaQuestion 6 of 207. The site of protein synthesis in the cell is—LysosomesRibosomesMitochondriaVacuolesQuestion 7 of 208. Smooth Endoplasmic Reticulum helps in synthesis of—ProteinsLipidsDNAEnzymes onlyQuestion 8 of 209. The process of forming the cell membrane from proteins and lipids is called—PhotosynthesisMembrane biogenesisCell divisionEndocytosisQuestion 9 of 2010. The organelle that stores, modifies and packages materials is—Golgi apparatusERLysosomeRibosomeQuestion 10 of 2011. Lysosomes contain—RibosomesDigestive enzymesDNA moleculesChlorophyllQuestion 11 of 2012. Lysosomes are called “suicide bags” because—They produce energyThey destroy foreign substances and damaged cellsThey store foodThey form membranesQuestion 12 of 2013. Mitochondria are called the powerhouses of the cell because they—Store energyRelease energy in the form of ATPProduce proteinHelp in cell divisionQuestion 13 of 2014. Mitochondria possess their own—DNA and ribosomesCell wallRNA onlyLysosomesQuestion 14 of 2015. Plastids are found only in—Animal cellsPlant cellsBacteriaVirusesQuestion 15 of 2016. Chloroplasts contain the pigment—CaroteneChlorophyllXanthophyllHaemoglobinQuestion 16 of 2017. The colorless plastids used for storage are called—ChromoplastsLeucoplastsChloroplastsProtoplastsQuestion 17 of 2018. Vacuoles in animal cells are generally—LargeAbsentSmallVery many large onesQuestion 18 of 2019. Plant vacuoles are filled with—Water onlyAirCell sapCytoplasmQuestion 19 of 2020. Vacuoles help to maintain—RespirationPhotosynthesisTurgidity and rigidityCell divisionQuestion 20 of 20 Loading...
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