The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the heterotrophic bacteria. Lactobacillis bacteria convert milk into curd.
273.
In p Puccinia karyogamy & meiosis takes place inside
Chloroplasts, chromoplasts and leucoplasts are the types of plastids found in higher plants. Chloroplasts contain the green pigment chlorophyll. Notes : Chromatophores are internal membrane systems present in photosynthetic prokaryotes. These develop as membrane lined sacs or thylakoids from plasma membrane. Thylakoid membranes contain photosynthetic pigments in cyanobacteria and purple bacteria.
275.
Which is commonly called "Drosophilla of plant kingdom
Late blight is caused by the fungus Phytophthora infestans. Late blight appears on potato or tomato leaves as pale green, watersoaked spots, often beginning at leaftips or edges. The circular or irregular leaf lesions are often surrounded by a pale yellowish-green border that merges with healthy tissue. Lesions enlarge rapidly and turn dark brown to purplish-black. Notes : During periods of high humidity and leaf wetness, a cottony, white mold growth is usually visible on lower leaf surfaces at the edges of lesions. In dry weather, infected leaf tissues quickly dry up and the white mold growth disappears. Infected areas on stems appear brown to black and entire veins may be killed in a short time when moist weather persists.
277.
Which is found in slime moulds but not a fund
The conractile vacuole is supposed to assist excertion in Amoeba, as its watery contents possess traces of carbon dioxide and urea. The $${CO_2}$$ diffuses directly through plasmalemma.