10000+ Questions

10000 + MCQ series

245.Cheif producers of oceans are?
(1)Dianoflagellates
(2)Euglenpids
(3)Chryzophytes
(4)Slime moulds

246.Which classification is also called cladistic ?
1. Numerical
2. Artificial
3. Phylogenetic
4. Practical

247.The statement Omnis cellula e cellula, which means all cells arise from pre-existing cells was given by
(1)Rudolf Virchow
(2)Schleiden
(3)Robert Brown
(4)Anton Von Leeuwenhoek

248. Which type of vacuoles provide buoyancy to bacteria?
(1) Sap vacuoles
(2) Contractile vacuoles
(3) Gas vacuoles
(4) Food vacuoles

249. The main chemical component of fungal cell wall is
(1) Peptidoglycan
(2) Chitin
(3) Hemicellulose
(4) pectin

250. The animal cell is different from plant cell in having
(1) Ribosomes
(2) Nucleus
(3) Golgi Bodies
(4) Centrosomes

251. Glucose-6-Phosphate Dehydrogenase deficiency is associated with the hemolysis of
(1) lymphocytes
(2) RBCs
(3) Platelets
(4) Leucocytes

252. As compared to C3 plants, how many additional ATP molecules are needed for net production of one molecule of hexose sugar by C4 plants ?
(1) 2
(2) 6
(3) 0
(4) 12

253. Through which cell of the embryo sac, does the pollen tube enters the embryo sac ?
(1) egg cell
(2) central cell
(3) persistent synergid
(4) degenerated synergid

254. Which of the following is generally used for induced mutagenesis in crop plants ?
(1) alfa-particlea
(2) X-rays
(3)UV rays
(4) Gamma rays

Answers to the questions above ;
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