Grade 4 Green plants

The leaves have tiny pores called________.

• stomata

• veins

• leaf blade

• starch

The leaves of plants are green because.....

• they are formed from green coloured seeds.

• they absorb green liquid.

• of the presence of a green pigment called chlorophyll.

• of the presence of the network of veins.

Leaf is attached to the stem with the help of ________

• leaf blade

• petiole

• midrib

• none of these

Identify the picture.

• condensation

• photosynthesis

• weathering

• none of these

What do plants release during photosynthesis that is essential for life?

• sugar 
• carbon dioxide
• oxygen 
• water 

______________is known as the food factories or kitchen of plants.

• stem

• stomata

• leaves

.______________runs through the middle of a leaf

• stalk

• Midrib

• lamina

Leaf takes in __________ and gives out _________and excess water vapour through stomata.

• oxygen and carbon dioxide

• carbon dioxide and oxygen

• sunlight and oxygen

What two substances are produced during photosynthesis?

• sugar and carbon dioxide 
• sugar and carbon monoxide
• sugar and water
• sugar and oxygen 

Extra food is stored as _____________ in different parts of the plant.

• Sugar

• Starch

• Chlorophyll

• None of these