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Leaves Prepare Starch by the Process of Photosynthesis
Leaves Prepare Starch by the Process of Photosynthesis
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1)
Which of the following doesn't contribute to photosynthesis?
Oxygen
Carbon dioxide
Chlorophyll
Water
2)
The process by which green plants prepare their food in the presence of sunlight is called
saprophytic nutrition
nutrition
cellular nutrition
photosynthesis
3)
The raw materials used for photosynthesis are:
CO2, O2 H2
CO2, water
O2 water
N2, water
4)
Which part of the plant takes carbon dioxide from the air for photosynthesis?
Petals
Root hair
Leaf veins
Stomata
5)
Iodine is used to detect the presence of starch. It gives starch
colourless
red colour
green colour
blue-black colour
6)
What is the ultimate source of energy for all living organisms?
Water energy
Wind energy
Solar energy
Chemical energy
7)
During photosynthesis plants
take carbon dioxide and release oxygen
take oxygen and release carbon dioxide
take carbon dioxide but do not release oxygen
take oxygen but do not release carbon dioxide
8)
What are the products formed during photosynthesis?
Glucose and Oxygen
Starch and Oxygen
Starch, Water and Oxygen
Glucose, water and oxygen
9)
Chlorophyll in a leaf is required for:
Attracting water
Storing starch in leaves
Emitting green in the light
Trapping light energy
10)
Which chemical test is used to test the presence of starch
Iodine solution
Litmus
Blue Ink
Litmus blue or Litmus red