Objective Questions In Botany – General Science Materials For Competitive Examinations Part 11
451. Those flowers which have both male and female reproductive parts are called unisexual
452. The other nama of the plant taxonomy is systematic botany
453. Plants takes nitrogen in the form of nitrates
454. Edible fungi are Agaricus
455. One of the following is useful for cheese making penicillium
456. Waterblooms are produced by algae
457. Viruses are all of these
458. Bacteria reproduce mostly asexually
459. Atmospheric CO2 can be reduced by the process of photosynthesis
460. which of the following cannot grow indeserts of Rajasthan? Banana
461. Bacteria are both (A) and (B)
462. Soil conservation is the process where soil is protected against erosion
463. Phytology is the study of algae
464. The largest flower is Rafflesia
465. The molecule with high energy phosphate bond in the cell is ATP
466. The root nodules containing Rhizobia occur in Fabaceae
467. Pasteurization of milk destroys its pathogenic bacteria
468. Atmospheric nitrogen is fixed in leguminous roots by bacteria
469.Gymnosperms are characterized by lacking ovaries
470. In food making industry the product of yeast culture utilised is
ethyl alcohol
471. One of the following is responsible for smut disease ustilago
472. Sexual reproduction is about in blue-green algae
473. Algin is obtained from brown algae
474. The virus which attacks E.coli is termed coliphage
475. Laminaria is an important source of iodine
476. ‘Pond silk’ is the common name of spirogyra
477. Pneumonia is caused by one of the following bacteria
478. Cotton fibre is obtained from the fruit
479. The largest producer of groundnut is India
480. India’s largest mineral resource is coal
481. The gas evolved by leaves during photosynthesis is oxygen
482. After fertilization ovary is transformed into fruit
483. Green trees of the forests are generally called as food chain primary producers
484. Streptomycin was discovered by waksman
485. Kelp is brown algae
486. Habitat of penicillium is organic substance
487. Monocotyled are chaaracterised by fibrous root system
488. Typhoid is caused by bacteria
489. The ovules in gymnosplerms are exposed
490. Cell division useful for gamete formation is meiosis
491. Herbicide is used to kill the weeds
492. Tap root is positively geotropic
493. Seedless fruits are seen in all of these
494. Most advanced plants in the plant kingdom are angiosperms
495. Fibres are taken from plant as sclerenchyma cells
496. The process in which fruit is formed without fertilization is know as parthenocarpy
497. Calotropis is an example of the following phyllotaxy opposite and decussate
498. Phylloclade is a modified stem
499. Which of the following diseases is likely to spread in the entire community. If a leaky septic tank contaminates the water supply? Cholera
500. Where would the bacterium E.coli be readily found? human intestine
