Nutrition in living organisms - plants

Organisms which prepare food for themselves using simple naturally available raw materials are referred to as -

• Hetertrophs

• Saprophytes

• Autotrophs

In the absence of which of the following will photosynthesis not occur in leaves?

• Guard cells

• Chlorophyll

• Vacuole

Pitcher plant traps insects because it-

• Is a heterotrophs

• Grows in soils which lack in nitrogen

• Does not have chlorophyll

When we observe the lower surface of a leaf through a magnifying lens we see numerous small openings. Which of the following is the term given to such openings

• Stomata

• Veins

• Lamina

Which of the following raw material is available in the air for photosynthesis?

• Oxygen

• Carbon dioxide

• Nitrogen

Two organisms are good friends and live together. One provides shelter, water and nutrients while the other prepares and provides food. Such an association of organisms is termed as -

• Saprophyte

• Parasite

• Symbiosis

The term that is used for the mode of nutrition in yeast, mushroom and bread mould is -

• Autotrophic

• Parasitic

• Saprophytic

The components that are necessary for our body are called-

• Pulses

• Cereals

• Nutrients

The bacterium which provides nitrogen to the leguminous plants is -

• Rhizobium

• Yeast

• Lichens

.......... gas is released by the plants in the process of photosynthesis

• Oxygen

• Carbon dioxide

• Nitrogen