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WorksheetsRevision Ch 1 to 4
Total questions: 15
Worksheet time: 8mins
Organisms which prepare food for themselves using simple naturally available raw materials are referred to as
heterotrophs
Saprotrophs
parasites
Autotrophs
Some plants depend on insects for some specific nutrients because
They didn't make their own food
They grow in a specific nutrient deficient soil.
They don't have cholorophyll
They don't have leaves
An iron ball heated to 80°C is paced in a vessel of hot water heated to 70°C. the heat Will
No flow of heat will take place
Flow from water to ball
Flow from ball to the water
None of the above
This is a synthetic indicator
Turmeric
Phenolphthaline
China rose
Litmus
What do we call the digestion process in grass eating animals?
Legumination
Irrigation
Rumination
determination
Leguminous plants help in the
absorption of water
carbon dioxide fixation
Oxygen fixation
Nitrogen fixation
The gentle wind coming from the sea to land is called
Wind breez
Sea breeze
Land breeze
None of the above
How plants get raw materials from the surroundings ?
From soil
From air
From both soil and air
None of the above
Which of the following acid causes acidity in our stomach?
Hydrochloric acid
Citric acid
Acetic acid
Sulphuric acid
Conduction is the method of transfer of heat in?
Liquid
Solid
Air
None of the above
Litmus is a natural dye extracted from
Hibiscus
Lichen
Turmeric
Soap
The raw materials for photosynthesis are
CO2
Oxygen
Water
CO2 and Water
Which of the following is the term used for the partially digested food in the rumen of animals?
Cud
Juice
Food
Liquid
Tiny pores present on the surface of leaves through which gaseous exchange occurs are called
Food holes
Gas holes
Stomata
Dent
Enzymes present in saliva converts
starch into simple sugars
proteins into amino acids
complex sugars into simple sugars
fats into fatty acids and glycerol
