nutrition in plants

The autotrophic mode of nutrition requires

• Carbon dioxide and water

• Chlorophyll

• Sunlight

• All of the above

Which of the following is an example of saprotroph?

• Grass

• Mushroom

• Amoeba

• Paramecium

The chlorophyll in photosynthesis is used for

• Absorbing light

• Breaking down water molecule

• No function

• Reduction of CO₂

Carbohydrates in the plants are stored in the form of

• Glycogen

• Starch

• Glucose

• Maltose

Main site of photosynthesis

• Leaf

• Stem

• Chloroplast

• Guard cells

Opening and closing of pores is a function performed by

• Stomata

• Chlorophyll

• Chloroplast

• Guard cells

Photosynthesis is a

• Catabolic process

• Parabolic process

• Amphibolic process

• Photochemical process

Photosynthesis is:

• Trapping energy of sunlight to form glucose.

• Synthesis of photosensitive compounds.

• Oxidation of glucose

• Oxidation of carbon dioxide

Oxygen liberated during photosynthesis come from

• Water

• Carbon dioxide

• Glucose

• ChlorophyII

which element is necessary for the synthesis of proteins in plants

• carbon

• magnesium

• iron

• nitrogen