Life 120 Chapter 8 Study Module: Photosynthesis

Through the stomata

How does carbon dioxide enter the leaf?

Blue

A photon of which color would carry the most energy?

Thylakoid membranes

Chlorophyll molecules are in which part of the chloroplast?

Thylakoid membrane

During photosynthesis in a eukaryotic cell, an electrochemical gradient is formed across the ________.

Electrons from photosystem II to photosystem I

During photosynthesis, an electron transport chain transports_____.

Rubisco in not the enzyme that catalyzes the initial fixation of carbon

How is photosynthesis similar in C4 plants and CAM plants?

Oxidative phosphorylation in cellular respiration

In mechanism, photophosphorylation is most similar to _______.

Carbon Dioxide

In photosynthesis, plants use carbon from_______to make sugar and other organic molecules.

The enzyme in C3 plants that first capture CO2 to begin the Clavin cycle

Rubisco is_____.

Stroma

The Calvin cycle occurs in the____.

Capture light energy

The most important role of pigments in photosynthesis is to_____.

The Calvin cycle requires products only produced when the photosystems are illuminated

The reactions of the Calvin cycle are not directly dependent on light, but they actually do not occur at night. Why?

Water

The source of the oxygen produced by photosynthesis has been identified through experiments using radioactive tracers. The oxygen comes from_______.

It is reduced and then carries electrons to the Calvin cycle

What is the role of NADP+ in photosynthesis?

Blue-violet and red light

What portion of the electromagnetic spectrum is most absorbed by the chlorophyll pigments in the thylakoid membranes?

Their electrons become excited

When chloroplast pigments absorb light,________.

Water

Where do the electrons entering photosystem II come from?

Release of oxygen

Which of the following does not occur during the Calvin cycle?

H2O-->NADPH-->Calvin Cycle

Which of the following sequences correctly represents the flow of electrons during photosynthesis?

The light reactions produce ATP and NADPH, both of which are used in the Calvin cycle

Which of the following statements correctly describes the relationship between the light reactions and the Calvin cycle?

Autotrophs, but not heterotrophs, can nourish themselves beginning with CO2 and other nutrients that are inorganic.

Which of the following statements is a correct distinction between autotrophs and heterotrophs?

Removal of electrons from chlorophyll molecules

Which process is most directly driven by light energy?

Unlike C3 plants, they keep fixing carbon dioxide even when the concentration of carbon dioxide i the leaf is low.

Why are C4 plants more suited to hot climates than C3 plants?

Have photosynthetic pigments

You could distinguish a granum from a crista because the granum, but not the crista, would______.