Nutrition in Plants

The autotrophic mode of nutrition requires:

• carbon dioxide and water

• chlorophyll

• sunlight

• all of the above

Oxygen evolved during photosynthesis comes from:

• water

• CO2

• soil

• atmosphere.

ATP and NADP 2H are produced in:

• Chloroplast

• Mitochondria

• Peroxisomes

• Lysosomes

Rate of photosynthesis is high in:

• orange light

• green light

• red light

• yellow light

Light reaction takes place in:

• stroma

• mitochondria

• leucoplast.

• grana

In which process CO2 is given out by plants

• photosynthesis

• respiration

• transpiration

• translocation.

Photosynthesis is a

• Catabolic process

• Parabolic process

• Amphibolic process

• Photochemical lprocess

Opening and closing of pores is a function performed by

• Stomata

• Chlorophyll

• Guard cells

• Chloroplast

Which element is used in the synthesis of proteins?

• Hydrogen

• Carbon dioxide

• Oxygen

• Nitrogen

The rate of photosynthesis is not affected by

• light intensity

• humidity

• temperature

• CO₂ concentration