Photosynthesis Experiment Quiz

What is the aim of the photosynthesis experiment mentioned?

• To find out the best temperature for pondweed growth

• To measure the amount of water absorbed by pondweed

• To use pondweed to see how light intensity affects the rate of photosynthesis

• To observe the color of pondweed in different light intensities

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

NGSS.MS-LS2-3

What is the independent variable in the experiment?

• The volume of water used

• The light intensity

• The size of the pondweed

• The number of oxygen bubbles given off

Tags

NGSS.MS-LS1-7

What should be done after moving the light 10 cm further back?

• Count the number of bubbles given off in two minutes

• Leave for five minutes for the pondweed to acclimatise again

• Change the water in the beaker

• Measure the temperature of the water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the dependent variable in the experiment?

• The number of oxygen bubbles given off

• The size of the pondweed

• The light intensity

• The temperature of the water

Tags

NGSS.MS-LS1-6

What are the expected results of the experiment?

• The number of bubbles increases as the light moves further away

• The color of the pondweed changes with light intensity

• The temperature of the water affects the number of bubbles

• More oxygen bubbles are produced when the light is closer

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What does a greater light intensity do to the rate of photosynthesis according to the experiment?

• Increases it

• Varies unpredictably

• Decreases it

• Has no effect on it

Tags

NGSS.MS-LS1-6

What is photosynthesis?

• The process by which animals convert food into energy

• A process in which plants and algae convert light, carbon dioxide, and water into glucose and oxygen

• A method to measure the intensity of light using plants

• A process in which plants convert glucose and oxygen into light and carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What safety risks are mentioned for the experiment?

• Pondweed may be toxic if ingested

• Risk of electric shock from the lamp

• The bulb may get very hot and care must be taken with glassware

• Risk of water spillage leading to slips

How is the experiment evaluated?

• By comparing the color of the pondweed before and after the experiment

• By considering the quality of data and suggesting improvements to the method

• By measuring the growth of the pondweed after the experiment

• By checking the water temperature consistency throughout the experiment

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

What is the purpose of counting the number of bubbles in the experiment?

• To assess the rate of photosynthesis

• To check the water quality

• To determine the health of the pondweed

• To measure the water's oxygen level

Tags

NGSS.MS-LS1-6