Exam 5: Photosynthesis

The purpose of closing stomata in plants is to prevent ____.

The processes described below represent major chemical pathways in the photosynthetic process. Match each description to the corresponding process. -Which process is catalyzed by an enzyme called rubisco? A)light-dependent reactions B)electron transfer phosphorylation C)carbon dioxide fixation D)Calvin-Benson cycle E)photosynthesis

Why does the efficiency of sugar production decrease when stomata are closed in C3 plants?

In the light-dependent reactions of photosynthesis, what is the ultimate fate of the electrons released from photosystem absorption of light energy?

The Calvin-Benson cycle takes place in ____.

Early organisms were anaerobic. As early organisms evolved the ability to harness energy from the sun, other organisms began to die out because they were ____.

Matching During the light-dependent reactions in the thylakoid membrane, light energy is converted to ATP.Match the specified labels in the diagram with their corresponding functions. a.final acceptor of electrons b.transfer of electrons between molecules c.release of electrons into the photosystem d.active transport of hydrogen ions to establish gradient e.passive transport of hydrogen ions down a gradient f.enzymatic phosphorylation g.replacement of electrons by hydrolysis -​Which process is indicated by labels 1 and 5?

The primary purpose of splitting the water in the light-dependent reactions of photosynthesis is to ____.

ATP is formed when ____ the thylakoid compartment.

Chlorophyll a molecules absorb ____ light.

Match each description with the corresponding term. -a process resulting in the formation of ATP and NADH A)carbon fixation B)light-dependent reactions C)photosystem II D)light-independent reactions E)electron transfer phosphorylation

In the thylakoid membrane, potential energy can be used to make ____.

Match each description with the corresponding term. -electron transfer chains that drive the formation of ATP A)carbon fixation B)light-dependent reactions C)photosynthesis D)Calvin-Benson cycle E)electron transfer phosphorylation

You are a botanist living in the desert. A friend asks you which plant would be most practical to plant in his or her yard. What is your answer?

Matching During the light-dependent reactions in the thylakoid membrane, light energy is converted to ATP.Match the specified labels in the diagram with their corresponding functions. a.final acceptor of electrons b.transfer of electrons between molecules c.release of electrons into the photosystem d.active transport of hydrogen ions to establish gradient e.passive transport of hydrogen ions down a gradient f.enzymatic phosphorylation g.replacement of electrons by hydrolysis -​Which process is indicated by label 3?

Most of the colors we see around us result from ____.

How many carbon dioxide molecules does it take to synthesize one molecule of glucose?

Which photosynthetic pigment is most efficient at absorbing near-infrared light?

In cyanobacteria, light-dependent reactions are carried out by molecules in ____.

The main producer(s) for the human food chain is/are ____.