Question: Pathogen is_________________?

• 1. Fungi which cause disease
• 2. Any bacteria which causes disease
• 3. Any virus which causes disease
• 4. Any organism which causes disease

Question: Root knot disease is caused by___________________?

• 1. Fungi
• 2. Nematodes
• 3. Virus
• 4. Bacteria

Question: Fungi damage our crops by_________________?

• 1. Producing toxic substances in plants
• 2. Destroying green pigment of plant
• 3. feeding on flowers and fruits
• 4. Absorption of nutrients from plant tissues

Question: Which one of the following is disease of wheat_________________?

• 1. Leaf rust
• 2. Strip rust
• 3. Loose rust
• 4. All the above

Question: The whole body of fungus is known as________________?

• 1. Thallus
• 2. Hyphae
• 3. Mycellium
• 4. Septale

Question: The Tree sends down roots from its branches to the soil is known as:___________?

• 1. Oak
• 2. Pine
• 3. Banyan
• 4. Palm

Question: Erysiphe caused the _________ disease?

• 1. Powdery mildews
• 2. Downy mildews
• 3. Covered smut
• 4. Late blight of potato

Question: The coprophilic fungi inhabit:

• 1. Dung substratum (herbivore feces)
• 2. Deadwood
• 3. Decaying leaves
• 4. Food articles

Question: __________ is gram-positive?

• 1. Xanthomonas
• 2. Corynebacterium
• 3. Pseudomonas
• 4. Erwinia

Question: ____________ converts ammonia into nitrite?

• 1. Nitrosomonas
• 2. Nitrobacter
• 3. Azotobacter
• 4. Rhizobium