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