Q.1:- Which of the following plant shows chloroplast dimorphism ?
- Sugar Beet
- Rice
- Wheat
- Sugarcane
Q.2:- Photoperiodism affects ?
- Flowering
- Vegetative Growth
- Fruiting
- All of these
Q.3:- Red rot of sugarcane is caused by ?
- Alternaria Alternata
- Phylophthora Infestans
- Collectotrichum Falcatum
- Cerospora Personata
Q.4:- The Hydrophilic nature of DNA is due to the presence of ?
- Thymine base
- A number of Hydrogen bonds
- Phosphate group
- Deoxyribose sugar
Q.5:- Linseed is obtained from ?
- Castor
- Flax
- Groundnut
- Sesame
Q.6:- People with Down’s Syndrome invariably affected by ?
- Huntington’s disease
- Alzheimer’s Disease
- Meningitis
- Brain Haemorrhage
Q.7:- Life originated by chemosynthesis was proved in the laboratory by ?
- Sanger
- Pasteur
- Miller
- Aristotle
Q.8:- The deficiency of vitamin A causes ?
- Night blindness
- Beri-Beri
- Rickets
- Pellagra
Q.9:- Natural system of classification was proposed by ………. Botanists.
- India
- German
- Swedish
- British
Q.10:- The special modified epidermal cells surrounding stomatal pore are called ?
- Epithelial Cells
- Guard cells
- Subsidiary cells
- Accessory cells
Q.11:- If waste materials contaminate the source of drinking water, which of the following diseases will spread ?
- Scurvy
- Typhoid
- Malaria
- Anaemia
Q.12:- Which of the following is an example of parasitic alga ?
- Ulothrix
- Cephaleuros
- Oedogonium
- Sargassum
Q.13:- Insulin :
- Increases blood sugar
- Decreases blood sugar
- Constricts blood vessels
- Stimulates lactation
Q.14:- In plants water is absorbed by the root hairs by a process called ?
- Transpiration
- Respiration
- Perspiration
- Osmosis
Q.15:- Which one of the following organs excretes water, fat and various catabolic wastes ?
- Kidney
- Skin
- Spleen
- Salivary Glands
Q.16:- Which of the following process does not increase the amount of Carbon Dioxide in air ?
- Breathing
- Photosynthesis
- Burning of Petrol
- Aerobic decay of vegetation
Q.17:- A warm-blooded animal is ?
- Shark
- Snake
- Bat
- Ascorbic
Q.18:- Estrogen and Progesterone control and stimulate the growth in ?
- Pituitary Gland
- Thyroid Gland
- Mammary Gland
- Supra Renal Gland
Q.19:- The reagent used to test the presence of starch in leaves is ?
- Fehling’s Solution
- Iodine Solution
- Million’s Reagent
- Benedict’s Solution
Q.20:- In onion food is stored in ?
- Aerial stem
- Root
- Scale leaves
- Bud
Q.21:- The total number of ear bones is ?
- 2
- 4
- 6
- 8
Q.22:- The pigment involved in photosynthetic activity is ?
- Anthocyanin
- Fucxanthin
- Carotenoid
- Chlorophyll
Q.23:- Vegetables oils are converted into solid fat (ghee) by ?
- Hydrolysis
- Addition of agar
- Oxidation using air and a catalyst
- Hydrogenation
Q.24:- Pesticides are used to destroy ?
- Micro-Organisms
- Poisonous Substances in Soil
- Poisonous Plants
- Insects
Q.25:- Which of the following does not provide any energy ?
- Fats
- Proteins
- Vitamins
- Carbohydrates
