Biology Selected Questions and Answers Set 6 for all competitive and entrance exams.
Q.1:- Maximum amount of energy ( ATP ) is liberated on oxidation of ?
Ans:- Fats
Q.2:- Give the name of any one plant hormone?
Ans:- Auxin
Q.3:- Naturally occurring Auxin is ?
Ans:- IAA
Q.4:- Fermentation is ?
Ans:- Incomplete oxidation of Carbohydrate
Q.5:- Which gas is essential for photosynthesis ?
Ans:- Carbon Dioxide (CO2)
Q.6:- Energy currency of cell is ?
Ans:- ATP
Q.7:- Litchen are constituted by ?
Ans:- Air Pollution
Q.8:- Azola is a ?
Ans:- Water Ferm
Q.9:- Study of pollen grain is called?
Ans:- Polynology
Q.10:- IR-20 is a high yielding variety of ?
Ans:- Rice
Q.11:- Osmosis Involves ?
Ans:- Diffusion of water from less to more concentrated side.
Q.12:- When concentration of solutes is low in the soil, absorption of water is ?
Ans:- Increase
Q.13:- The phenomenon by which water molecules move from a weaker solution to a stronger solution through a semi-permeable membrane is called ?
Ans:- Osmosis
Q.14:- What is the type of movement that occurs during opening and closing of flower ?
Ans:- Nastic Movement
Q.15:- In plant body, the water and minerals are transported by ?
Ans:- Xylum
Q.16:- A cell increases in volume if the external medium is ?
Ans:- Hypotonic
Q.17:- Litchen which grow on stones are called ?
Ans:- Saxocoles
Q.18:- Aflatoxins are produced by ?
Ans:- Fungi
Q.19:- Microscopic organism which passively float on the surface of water are called ?
Ans:- Phytoplantons and Zooplantones
Q.20:- Physical basis of life is ?
Ans:- Protoplasm
Q.21:- Red rot of sugarcane is caused by ?
Ans:- Colletotrichum
Q.22:- It is possible to produce seedless tomato fruits by ?
Ans:- spraying hormones on flowers
Q.23:- Oxygen released during photosynthesis of green plant comes from the breakdown of ?
Ans:- Water
Q.24:- Embryo is found in ?
Ans:- Seeds
Q.25:- During rainy seasons door made up of wood swell up due to ?
Ans:- Inbibition
