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10 questions
Which of the following raw materials are important for photosynthesis to take place?
Carbon dioxide
Oxygen
Hydrogen sulphide
Which of the following will trap sunlight in plants?
water
lignin
chlorophyll
Who demonstrated that Plants restore to air whatever breathing animals and burning candles remove?
Joseph Priestley
Jan Ingenhousz
Julius Von Sachs
Jan Ingenhousz showed that in sunlight, green parts of plants produced _________bubbles
soap
nitrogen
oxygen
According to Julius Von Sachs, glucose is made in green parts of plants and is stored as ____________
starch
fructose
glycogen
TW Engelmann, using prism split light into its spectral components and illuminated the cladophora algae present in a suspension pf aerobic bacteria. He observed that bacteria accumulated around _______and ________regions of spectrum.
violet and green
yellow and green
blue and red
Cornelius Van Niel used ___________bacteria to conclude that oxygen in green plants comes from water and not from carbondioxide
Purple and green sulphur bacteria
curd bacteria
typhoid bacteria
The organisms that undergo photosynthesis are called
saprophytes
parasites
autotrophs
Chlorophyll is present in
Mitochondria
lysosomes
chloroplasts
Within the chloroplasts the light energy is trapped in
membranes
stroma
ribosomes
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