SSLC (English Medium) Class 9 - Tamil Nadu Board of Secondary Education Question Bank Solutions

Match the following:

Sunflowers open the petals in bright light during the daytime but close the petals in dark at night. This response of sunflowers is called ______.

During photosynthesis, plants exhale ______.

Chlorophyll in a leaf is required for ______.

A plant is kept in a dark room for about 24 hours before conducting any experiment on photosynthesis in order to ______.

Only green plants have the unique capacity to release ______ into the atmosphere.

The end product of photosynthesis is ______.

The minerals like nitrogen, potassium, and phosphorus, which are required in substantial quantity by the plants are called ______.

The raw materials for photosynthesis are ______ and ______.

When iodine solution is added for testing starch, part of the leaf with ______ turns a blue-black color.

In leaves, the food is stored in the form of ______.

Plants may inhale carbon dioxide for photosynthesis but need ______ for their living. 

Plants utilize only ______% of the absorbed water for photosynthesis and the other activities. 

Plants inhale and exhale continuously through the ______.

The bending of shoot towards light is due to the hormone ______.

What is the end product of photosynthesis?

Name the minute openings seen on the lower surface of the leaf.

Study the pictures below and then complete the table by putting a plus (+) if the shoot or root grows towards the stimulus and a minus (-) if it grows away from it.

Which gas evolved during photosynthesis?

Give an example for micronutrients.