Exploring Plant Pigments and Photosynthesis in AP Biology Lab 4

What is the primary function of photosynthesis in plants?

• To release sugar into the atmosphere

• To absorb water from the soil

• To convert sunlight into usable energy form

• To produce oxygen from carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which pigment is primarily responsible for starting the process of photosynthesis?

• Chlorophyll b

• Carotene

• Chlorophyll a

• Xanthophylls

What is the purpose of using chromatography in the study of plant pigments?

• To change the color of pigments

• To determine the solubility of pigments

• To measure the height of plants

• To separate different pigments

How is the RF value calculated in chromatography?

• Distance moved by solvent divided by distance moved by pigment

• Distance moved by pigment divided by distance moved by solvent

• None of the above

• Total distance moved by pigment and solvent

Which color light results in a higher rate of photosynthesis according to the experiment?

• Green

• Red

• Yellow

• Blue

Tags

NGSS.MS-LS1-6

What role does baking soda play in the photosynthesis experiment?

• It increases light absorption

• It acts as a light filter

• It acts as a source of carbon dioxide

• It decreases the water temperature

Tags

NGSS.MS-LS1-6

What is the effect of increasing the distance from the light source on the rate of photosynthesis?

• Decreases the rate

• Varies depending on the plant type

• Increases the rate

• No effect

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

How can the rate of photosynthesis be visually measured in the lab setup?

• By the temperature of the water

• By the color change in leaves

• By the movement of leaf chads

• By the growth of the plant

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

What does DPIP replace in the alternative photosynthesis measurement method?

• Water

• Carbon dioxide

• NADP+

• Chlorophyll

What indicates a faster rate of photosynthesis when using DPIP?

• Change from green to yellow color

• Change from clear to blue color

• Change from blue to clear color

• No change in color