Biology: Chapter 8

The direct source of chemical energy that powers the Calvin cycle is: (B)

A.) light and energy b.) ATP and NADPH c.) NADPH d.) light energy and NADPH e.) chlorophyll a

Which of the following best describes the role of carbon dioxide in photosynthesis? (c)

a.) Carbon dioxide is a product of the light-dependent reactions. b.) Carbon dioxide has a major role in releasing energy for the production of oxygen. c.) Carbon dioxide is vital to the production of glucose. d.) Carbon dioxide is released at the end of the light-independent reactions. e.) Carbon dioxide is the energy-storing molecule produced through photosynthesis.

Which of the following process of photosynthesis does not directly require light? (a)

a.) conversion of carbon dioxide to organic molecules such as sugar b.) synthesis of ATP c.) production of oxygen d.) production of NADPH and NADP+ e.) transfer of electrons to the first photsystem

During the light reactions stage in photosynthesis, the energy in sunlight is converted to: (b)

a.) sugar b.) chemical energy c.) mechanical energy d.) thermal energy e.) water

The electron transport chain in the light-dependent reaction of photosynthesis is different from the electron transport chain in cellular respiration because: (c)

a.) the electron transport chain in photosynthesis makes ATP, while the electron transport chain in cellular respiration does not b.) the electron transport chain in photosynthesis produces water, while the electron transport chain in cellular respiration does not c.) the electron transport chain in photosynthesis produces NADPH, while the electron transport chain in cellular respiration uses NADPPH d.) the elctron transport chain in photosynthesis

Electrons used in the energy-capturing reactions of photosynthesis are replaced by electrons from: (a)

a.) water b.) NADPH c.) carbon dioxide d.) ATP e.) carotenoid pigments