CHAPTER 1 BIOLOGY

Ultimate source of energy is

• Chemical energy

• Solar energy

• Water energy

• Wind energy

Food is used as a source for

• Cohesive

• Adhesive

• Nutrients

• Nourishment

The substance synthesised during photosynthesis is

• protein

• Fat

• nutrients

• glucose

During photosynthesis

• solar energy is converted into chemical energy

• solar energy is converted into mechanical energy

• chemical energy is converted into mechanical energy

• bioenergy is converted into chemical energy

A Parasitic Plant With Yellow, Slender And Tubular Stem

• All of the below

• Pitcher plant

• Cuscuta

• Golden roads

In Non-Green Plants And Animals, Their Mode Of Nutrition Is

• Saprophytic

• Parasitic

• Heterotrophic

• Autotrophic

Which Of The Following Statements Is Or Are Correct?

• Parasitic nutrition is a type of “Heterotrophic Nutrition”.

• Insectivorous plants do not perform photosynthesis at all and they obtain nutrients from insects.

• The association of pulses plant with rhizobium bacteria is example of saprotrophic relationship.

• The air continues to heat up because it gets confined within the greenhouse.

The raw materials used for photosynthesis are:

• CO2, O2, H2

• CO2, water

• N2, water

• O2 water

When two organisms are good friends and live together and they benefit each other. Such an association of organisms is termed as

• saprophyte

• parasite

• autotroph

• symbiosis

Tiny pores present on the surface of leaves through which gaseous exchange occurs are called

• stomata

• guard cells

• food holes

• gas holes