Photosynthesis and respiration questions

Hello class,

You need to be able to answer these questions:


What is photosynthesis?

Photosynthesis is the process by which plants make their own food.

What do they need to make the food?

They need: water, carbon dioxide and sunlight.

What do the roots absorb?

They absorb water and minerals from the soil.

Where does photosynthesis take place?

Photosynthesis takes place in the leaves of plants

How does the carbon dioxide pass through the leaves?

Carbon dioxide passes through small holes called stomata.

How do plants absorb energy from the sun? (difficult) 

Inside the cells of the plants there are small structures called chloroplasts. Each chloroplast contains a green chemical called chlorophyll which gives leaves their green colour and absorbs light from the sun.

What do plants release in photosynthesis?

Plans release oxygen when they do photosynthesis.

What is the food for plants?

Glucose is the food for plants. When plants do photosynthesis they produce glucose and oxygen.

What do plants absorb and release during respiration?

During respiration plants absorb oxygen and release carbon dioxide.

When do plants do photosynthesis?

Plants do photosynthesis during daytime because they need the sun´s energy.

When do plants respire?

Plants respire during all day.


 

Bye bye kids!

Paula