Photosynthesis Experiment Quiz

What is the purpose of placing a watch-glass containing potassium hydroxide next to one of the plants?

• To release oxygen

• To provide water to the plant

• To absorb carbon dioxide

• To increase the temperature

What is the purpose of covering both plants with separate bell-jars?

• To increase humidity around the plants

• To provide shade to the plants

• To protect the plants from insects

• To create an airtight environment

What is the purpose of using vaseline to seal the bottom of the jars to the glass plates?

• To ensure an airtight seal

• To provide nutrients to the plants

• To prevent the plants from wilting

• To increase the temperature around the plants

What is the purpose of keeping the plants in sunlight for about two hours?

• To allow photosynthesis to occur

• To dry out the plants

• To increase the carbon dioxide levels

• To prevent the plants from growing

What is the purpose of plucking a leaf from each plant and checking for the presence of starch?

• To determine the rate of photosynthesis

• To measure the height of the plants

• To check for insect infestation

• To assess the color of the leaves

Do both the leaves show the presence of the same amount of starch?

• Yes

• No

• Cannot be determined

• Not mentioned in the text

What can be concluded from this activity?

• The plant with potassium hydroxide showed more starch

• The plant without potassium hydroxide showed more starch

• Both plants showed equal amount of starch

• The experiment was inconclusive

What is the purpose of the experimental set-up shown in Figure 5.4?

• To study the process of photosynthesis

• To observe the growth of the plants

• To measure the temperature of the plants

• To provide a decorative display