Class 7- Chapter 1

The two modes of nutrition are_______

• Autotrophic and photosynthesis

• Excretion and respiration

• Growth and respond to stimuli

• Autotrophic and heterotrophic

Only _______ are the autotrophic.

Answer explanation

The correct answer is green plants because green plants have chlorophyll that help them to make their own food, if we talk about plants then they also include non- green plants like fungi.

The process of Photosynthesis produces

• Carbon Dioxide

• Nitrogen

• Oxygen

• Hydrogen

Which of the following is not necessary for photosynthesis

• Chlorophyll

• Carbon dioxide gas

• Oxygen

• Water

Organisms which produce their own food are called

• Autotrophs

• Heterotrophs

• Saprotrophs

• Parasites

Which part of the plant takes in carbon

dioxide from the air for photosynthesis

• Root

  hair

• stomata

• leafveins

• sepals