Q. Regular intake of fresh fruits and vegetables is recommended in the diet since they are a good source of antioxidants. How do antioxidants help a person maintain health and promote longevity?
1) The activate the enzymes necessary for vitamin synthesis in the body an help avoid unnecessary wastage of energy
2) They prevent excessive oxidation of carbohydrates, fats and proteins in the body and help avoid unnecessary wastage of energy
3) They neutralise free radicals produced in the body during metabolism
4) The activate certain genes in the cells of the body and help delay the ageing process
Q. Foot and Mouth disease occurs in -
1) Cattle
2) Cattle and Sheep
3) Cattle and Pigs
4) Cattle, Sheep and Wine
Q. The naturally occurring anticoagulant in the human blood is -
1) Hirudin
2) Heparin
3) Fibrinogen
4) Serotonin
Q. The term 'gene' for the factors controlling heredity was coined by -
1) Gregor-Mendal
2) Hugo de vries
3) T.H. Morgan
4) W. Johannsen
Q. Which one of the following spices is obtained from flower buds?
1) Clove
2) Cumin
3) Nutmeg
4) Coriander
Q. Lichen is a symbiotic association between an alga and which one of the following?
1) A bacterium
2) Fungus
3) Liverwort
4) Fern
Q. Bacteriophages -
1) A kind of soil bacteria
2) Bacteria growing in phases
3) Parasitic bacteria infecting man
4) Virus infecting bacteria
Q. The Mammal that lays eggs is -
1) Kangaroo
2) Duck-billed platypus
3) Opossum
4) Other
Q. A prokaryote is -
1) a single celled organism
2) a hard and stony fruit
3) an organism lacking membrane bound nucleus in its cells
4) None of the above
Q. Haemoglobin is -
1) The colouring matter of leaves of plants
2) The colouring matter of Blood
3) A compound present in Milk
4) A compound that transmits signal to the Brain
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