Q.81)-Molybdenum deficiency affects the activity of
  • All of the given options
  • Chlorate reductase
  • Nitrogenase
  • Nitrate reductase
Q.82)-Which of the following plant shows chloroplant dimorphism
  • Sugar beet
  • Rice
  • Wheat
  • Sugarcane
Q.83)-Azolla increases soil fertility for
  • Maize cultivation
  • Wheat cultivation
  • Barley cultivation
  • Rice cultivation
Q.84)-Which of the following is responsible for transport of food and other susbtancess is plants
  • xylem
  • Phloem
  • chloroplast
  • None of these
Q.85)-The substrate of photorespiration is
  • Fructose
  • Pyruvic acid
  • Glycolate
  • Glucose
Q.86)-Which of the following bacterium causes crown gall diseases in plants
  • Bacillus thurigiensis
  • Agrobacterium tumefaciens
  • Pseudomonas fluorescens
  • None of these
Q.87)-The elements known as primary nutrients for plants
  • Nitrogen, Phosphorus and Potassium
  • Nitrogen, Oxygen, and silicon
  • Potassium, Boron and Nitrogen
  • Nitrogen, Phosphorus and Iron
Q.88)-Which light is lest effective in photosynthesis
  • Blue light
  • Green light
  • Red light
  • Sunlight
Q.89)-Which of the following plays an important role in photosynthesis
  • Chloroplast
  • Centrosome
  • Tonoplast
  • Nematoblast
Q.90)-________is a multibranched polysacharide of glucose that seves as a form of energy stronge in animals and fungi
  • Cellulose
  • Glycogen
  • Pectin
  • Chitin