Life Processes- IOQJS

Which is the most abundant enzyme?

Which all processes occur in light reaction?

• Trapping of Sunlight

• Photolysis of Water

• Formation of ATP and NADPH

• Evolution of O₂

Select the correct colour for the pigment in the chromatogram; Chlorophyll a

• Blue

• Bright Green/ Blue Green

• Green

• Red

Select the correct colour for the pigment in the chromatogram; Chlorophyll b

• Yellow Green

• Purple Red

• Yellow Blue

• Yellow Red

Select the correct colour for the pigment in the chromatogram; Xanthophylls

• Green
• Blue
• Red
• Yellow

Select the correct colour for the pigment in the chromatogram; Carotenoids

• Violet Red

• Blue Green

• Yellow Red/ Yellow Orange

• Green

Which pigment is the main pigment of photosynthesis

• chlorophyll b

• chlorophyll a

• xanthophylls

• carotenoids

What are the other pigments in the previous question called? What do they do?

Answer explanation

Chlorophyll b, carotenoids and xanthophylls are called accessory pigments. They reflect sunlight to chlorophyll a.

Photosynthesis occurs maximum in wavelength and colour

• Red and 700 nm
• Blue and 400 nm

• Green and 550 nm
• Yellow and 600 nm

Photosynthesis occurs minimum in colour

• Blue

• Green

• Red

• Black