1. In relation to silk worm, DFLs means:
(1) disease free larvae
(2) disease free leaves
(3) disease free layings
(4) disease free lymphocytes
(5) disease free lots
Ans: (3)
2. The honey queen bee has:
(1) no sting
(2) sword or sickle shaped sting
(3) barbed sting
(4) hexagonal sting
(5) trident shaped sting
Ans: (2)
3. What property of water makes it universal solvent ?
(1) Low dielectric constant
(1) Low molecular weight
(3) Colourless substance
(4) Highly polar in nature
(5) Liquid at room temprature
Ans: (4)
4. Hydrophytes have:
(1) Sunken stomata
(2) Dumble shaped stomata
(3) Kidney shaped stomata
(4) No stomata or functionless stomata
(5) Both (1) and (3)
Ans: (4)
5. Mo is a part of the following enzyme:
(1) Protease (2) Lipase
(3) Nitrogenase (4) Amylase
(5) Peptidase
Ans: (3)
6. One of the following is an example of dead cell:
(1) Cambium cell
(2) Phloem cell
(3) Xylem parenchyma cell
(4) Xylem vessel
(5) Meristem
Ans: (4)
7. Which of the following enzyme has most important role in. 'C4' plants?
(1) Hexokinase
(2) Phosphoenolpyruvate carboxylase
(3) Alcohol dehydrogenase
(4) Ascorbate peroxidase
(5) Ascorbate dehydrogenase
Ans: (2)
8. Photorespiration occurs in presence of:
(1) Chloroplast and mitochondria
(2) Mitochondria and golgi bodies
(3) Chloroplast, peroxisome and mitochondria
(4) Chloroplast, peroxisome and golgi bodies
(5) Chloroplast, Peroxisome and ribosomes
Ans: (3)
9. Vernalization induces:
(1) Seed germination (2) Vegetative growth (3) Seed formation (4) Flowering
(5) Fruit formation
Ans: (4)
10. Dimorphic chloroplast is present in:
(1) Wheat (2) Sugarcane (3) Mustard (4) Pea (5) Mango
Ans: (2)
