Photosynthesis Experiment Concepts

The video tutorial introduces a chapter on nutrition, focusing on an activity to demonstrate oxygen production during photosynthesis. The experiment involves setting up an apparatus with pond water and a water plant, placing it in sunlight, and observing the collection of oxygen gas in a test tube. The presence of oxygen is confirmed by inserting a glowing incense stick, which bursts into flames. This activity illustrates that oxygen is produced during photosynthesis in the presence of sunlight.

What is the main purpose of the activity described in the video?

• To identify different types of water plants

• To test the purity of pond water

• To measure the amount of sunlight needed for photosynthesis

• To demonstrate how oxygen is produced during photosynthesis

Which plant is suggested for use in the experiment?

• Cactus

• Fern

• Hydrilla

• Moss

What is the role of the inverted test tube in the experiment?

• To act as a light source

• To measure the temperature of the water

• To collect the gas produced during the experiment

• To provide support to the funnel

How long should the experimental setup be placed in sunlight?

• 2 days

• 4 days

• 1 day

• 3 days

What observation confirms the presence of oxygen in the test tube?

• The plant grows larger

• A glowing incense stick bursts into flames

• The test tube changes color

• The water level rises

What conclusion can be drawn from the experiment?

• Oxygen is not produced during photosynthesis

• Sunlight is not necessary for photosynthesis

• Water is not required for photosynthesis

• Oxygen is produced during photosynthesis in the presence of sunlight