photosynthesis quiz

Which of the following statements is true about pigments?

• Chlorophyll is best at absorbing green and yellow light

• Chlorophyll a makes plants either violet or red

• Carotenoid is best at absorbing yellow, orange, and red light

• Carotenoid is best at absorbing blue-violet light

As the intensity of light increases, the rate of photosynthesis will...

• steadily increase

• increase exponentially

• increase, then level off, then decrease

• decrease at first, then increase

What do pigments do?

• Absorb specific wavelengths(color) of visible light for energy.

• Absorb CO₂ in the Stroma to create sugar.

• Transports e^- in the electron transport chain.

• Transports energy between plant cells.

What is water's role in photosynthesis?

• To create a liquid solute for oxygen to be made.

• To provide electrons and hydrogen, to energize ATP and NADPH.

• To help plants with gas exchange, such as diffusion of CO_2.

• To hydrate plants and removes harmful waste products.

Most plants appear green because chlorophyll

• absorbs green light.
• absorbs violet light.
• does not absorb green light.
• does not absorb violet light.

What are the two products of the light reactions that are needed for the calvin cycle?

• NAD and NADPH
• NADP + and Glucose
• NADPH and ATP
• Oxygen and NADPH

Where do the dark reactions (Calvin cycle) take place?

• thylakoid membrane

• lumen

• stroma

What is the function of NADPH and ATP?

• They absorb light
• They power the light-dependent reactions
• They are light-reflecting pigments
• They are short term energy carriers

Which of the following is the correct equation for PHOTOSYNTHESIS?

• CO₂ + light + H₂O --> O₂ + Sugar
• CO₂ + sugar + H₂O --> O₂ + light
• _O2 + light + H₂O --> CO₂ + Sugar
• CO₂ + O₂ + H₂O --> Light+ Sugar

Light-independent reactions require...

• • O2

• NADPH and ATP

• • NADP+

• • glucose