Chapter 9

Where is chlorophyll located in the chloroplast? (a) thylakoid membranes (b) stroma (c) matrix (d) thylakoid lumen (e) between the inner and outer membranes

In photolysis, some of the energy captured by chlorophyll is used to split (a) \(\mathrm{CO}_{2}\) (b) ATP (c) NADPH (d) \(\mathrm{H}_{2} \mathrm{O}\) (e) both b and \(\mathrm{c}\)

Light is composed of particles of energy called (a) carotenoids (b) reaction centers (c) photons (d) antenna complexes (e) photosystems

The relative effectiveness of different wavelengths of light in photosynthesis is demonstrated by (a) an action spectrum (b) photolysis (c) carbon fixation reactions (d) photoheterotrophs (e) an absorption spectrum

In plants, the final electron acceptor in noncyclic electron flow is (a) NADP \(^{+}\) (b) \(\mathrm{CO}_{2}(\mathrm{c}) \mathrm{H}_{2} \mathrm{O}\) (d) \(\mathrm{O}_{2}\) (e) G3P

Most plants contain, in addition to chlorophyll, accessory photosynthetic pigments such as (a) PEP (b) G3P (c) carotenoids (d) \(\mathrm{PGA}\) (e) \(\mathrm{NADP}^{+}\)

The part of a photosystem that absorbs light energy is its (a) antenna complexes (b) reaction center (c) terminal quinone electron acceptor (d) pigment-binding protein (e) thylakoid lumen

In _______ light contribute their energy to add phosphate to ADP, producing ATP. (a) crassulacean acid metabolism (b) the Calvin cycle (c) photorespiration (d) \(C_{4}\) pathways (e) photophosphorylation

The mechanism by which electron transport is coupled to ATP production by means of a proton gradient is called (a) chemiosmosis (b) crassulacean acid metabolism (c) fluorescence (d) the C \(_{3}\) pathway (e) the \(C_{4}\) pathway

In photosynthesis in eukaryotes, the transfer of electrons through a sequence of electron acceptors provides energy to pump protons across the (a) chloroplast outer membrane (b) chloroplast inner membrane (c) thylakoid membrane (d) inner mitochondrial membrane (e) plasma membrane

The inputs for ___________ are \(\mathrm{CO}_{2}, \mathrm{NADPH},\) and ATP. (a) cyclic electron transport (b) the carbon fixation reactions (c) noncyclic electron transport (d) photosystems I and II (e) chemiosmosis

The Calvin cycle begins when \(\mathrm{CO}_{2}\) reacts with (a) phosphoenolpyruvate (b) glyceraldehyde-3-phosphate (c) ribulose bisphosphate (d) oxaloacetate (e) phosphoglycerate

The enzyme directly responsible for almost all carbon fixation on Earth is (a) rubisco (b) PEP carboxylase (c) ATP synthase (d) phosphofructokinase (e) ligase

In \(C_{4}\) plants, \(C_{4}\) and \(C_{3}\) pathways occur at different ________, whereas in CAM plants, CAM and \(C_{3}\) pathways occur at different __________. (a) times of day; locations within the leaf (b) seasons; locations (c) locations; times of day (d) locations; seasons (e) times of day; seasons

An organism characterized as a photoautotroph obtains energy from and carbon from (a) light; organic molecules (b) light; \(\mathrm{CO}_{2}(\mathrm{c})\) organic molecules; organic molecules (d) organic molecules; \(\mathrm{CO}_{2}(\mathrm{e}) \mathrm{O}_{2} ; \mathrm{CO}_{2}\)