Biology: Chapter 9 Flashcards

The process by which light energy is converted into the stored chemical energy of organic molecules is:

What is the correct sequence of wavelengths (beginning with the shortest)?

Light behaves not only as waves, but also as particles called:

By definition, substances that absorb visible light are called:

An electron absorbs a photon of light energy and becomes energized; the electron shifts from a __________ atomic orbital to a __________ atomic orbital.

Electrons that are excited to a higher energy level may be transferred to an electron acceptor or may return to a ground state. If the latter occurs, energy can be released as an emission of light in a process known as:

The chlorophyll molecule has a porphyrin ring that contains a single atom of:

Chlorophyll and accessory photosynthetic pigments are associated with the:

The most important pigment(s) for the process of photosynthesis is(are):

The __________ of a chlorophyll molecule is(are) responsible for absorbing light.

A group of thylakoid discs make up:

In a chloroplast, there is an outer and an inner membrane. The inner membrane encloses a fluid filled region called the:

The thylakoid membrane encloses a space called the:

Thylakoid membranes are involved in __________ synthesis.

Chlorophyll:

Which of the following are accessory photosynthetic pigments that expand the spectrum of light that provides energy for photosynthesis:

Figure 9-1 Use the figure to answer the corresponding question(s). Chloroplasts will be found in the greatest density in the area of Figure 9-1 labeled:

Figure 9-1 Use the figure to answer the corresponding question(s). The primary function of the leaf structure labeled 5 in Figure 9-1 is:

The action spectrum of photosynthesis best matches the absorption spectrum of:

Figure 9-2 Use the figure to answer the corresponding question(s). According to the graph in Figure 9-2, chlorophyll absorbs light most strongly in the:

Figure 9-2 Use the figure to answer the corresponding question(s). The graph in Figure 9-2 represents the:

Chlorophyll absorbs primarily __________ and __________ regions of the visible spectrum.

Engelmann concluded that chlorophyll in the chloroplasts is responsible for photosynthesis based on the following results:

The overall reactions of photosynthesis are best summarized as:

During the reactions of photosynthesis, __________ is reduced and __________ is oxidized.

In the overall reactions of photosynthesis, it appears that hydrogen atoms are transferred from water to carbon dioxide to form a carbohydrate. This type of reaction is classified as:

The reactions of photosynthesis are divided into two categories:

Figure 9-3 Use the figure to answer the corresponding question(s). Carbon is fixed in which part of the diagram in Figure 9-3?

Figure 9-3 Use the figure to answer the corresponding question(s). Where in Figure 9-3 is NADPH formed?

In photosynthesis, ATP and NADPH are produced during:

The reactions that occur in the thylakoid membranes are:

The reactants of the light-dependent reactions are:

The reactants of the Calvin cycle are:

Which of the following is not associated with the thylakoid membranes?

12 H₂O + 12 NADP⁺ + 18 ADP + P_i → 6 O₂ + 12 NADPH + 18 ATP summarizes the __________ reactions of photosynthesis.

The electron transport chain of photosynthesis is located in the:

Reaction center complexes of the light-dependent reactions contain __________ and __________, which receive energy from __________.

How many electrons are needed to reduce one molecule of NADP⁺ to NADPH?

During the light-dependent reactions of photosynthesis, a constant supply of electrons is provided by:

The electrons lost by the P680 reactive center are replaced from:

Oxygen produced by photosynthesis comes directly from:

Noncyclic electron transport needs a constant supply of electrons. These are obtained from:

ATP is formed when __________ the thylakoid lumen.

The synthesis of ATP during photosynthesis or respiration occurs as a result of:

The first step in the Calvin cycle is the attachment of carbon dioxide to:

Which of the following is common to both photosynthesis and aerobic respiration?

Which of the following is not one of the intermediates or products of the carbon fixation reactions?

In C₄ plants, reactions that fix CO₂ into four-carbon compounds occur in:

Plants, algae, and certain prokaryotes are:

Animals, fungi, and many bacteria that use organic molecules as a source of both energy and carbon are: