Exam 5: Photosynthesis

The processes described represent major chemical pathways in the photosynthetic process. Match each description to the corresponding process. -​Water is split in which process? A)light-dependent reactions B)electron transfer phosphorylation C)carbon dioxide fixation D)Calvin-Benson cycle E)light-independent reactions

The processes described represent major chemical pathways in the photosynthetic process. Match each description to the corresponding process. -​Electron transfer drives ATP formation in which process? A)light-dependent reactions B)electron transfer phosphorylation C)carbon dioxide fixation D)Calvin-Benson cycle E)light-independent reactions

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 8?

The Calvin-Benson cycle is a cyclical pathway of reactions that use ____.

For six molecules of carbon dioxide fixed in the light-independent reaction, how many molecules of PGA are produced?

In light-dependent reactions, hydrogen ions are transported into the thylakoid membrane. What drives the movement of these ions?

Photorespiration ____ the efficiency of sugar production and ____ the amount of carbon fixation.

In which cellular organelle does photosynthesis take place?

The human body is about ____ percent carbon by weight.

The most direct product of the Calvin-Benson cycle, which can be used to continue to cycle but which is also exported for other uses such as glucose synthesis, is ____.

When the stomata are closed, ____.

In the thylakoid membrane, photosynthetic pigments are held together by ____.

Match each description with the corresponding term. -the first part of the Calvin-Benson cycle A)carbon fixation B)light-dependent reactions C)photosystem II D)light-independent reactions E)electron transfer phosphorylation

In a noncyclic pathway, ____ provides replacement electrons for photosystem I.

The products of light-dependent reactions of photosynthesis are ____.

Consider Calvin-Benson cycle. What is the correct sequence in the series of reactions? I. Carbon fixation II. Regeneration III. Reduction

Plant cells produce oxygen gas ____.

Hydrogen ion flow out of the thylakoid compartments ____.

How many PGA molecules (net yield) are produced per molecule of CO₂ during carbon fixation?

The electrons that are passed to NADP⁺ at the end of the electron transfer chain were obtained from ____.