Which kind of organism obtains energy by metabolizing molecules developed by various other organisms?

A) autotrophs

B)heterotrophs

C)decomposers

D)B and C

E) A, B, C


Which the the adhering to are assets of the light reactions of photosynthesis that are utilized in the Calvin cycle?

a. CO2 and also glucose

b. H2o and also o2

c. Adp, pi, and nadp+

e. Atp and nadph


What space the assets of the irradiate reactions that are subsequently provided by the Calvin Cycle?

a.oxygen and carbon dioxide

b.carbon dioxide and also RuBP

c. Water and also carbon

d. Electrons and also phtons

e. ATP and also NADPH


What wavelength of irradiate in the figure is most reliable in steering photosynthesis?A. 625 mmB. 475 mmC. 420 mmD. 730 mmE. 575 mm


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The number shows the absorption spectrum for chlorophyll a and the activity spectrum because that photosynthesis. Why are they different?

A) Green and yellow wavelength inhibit the absorption of red and also blue wavelengths.

You are watching: All of the events listed below occur in the light reactions of photosynthesis except

B) Oxygen provided off during photosynthesis interferes with the absorb of light.

C) various other pigments absorb light in enhancement to chlorophyll a.

D) Aerobic bacteria take up oxygen, which alters the measure up of the rate of photosynthesis.


In the thylakoid membranes, what is the main duty of the antenna pigment molecules?

a. Split water and also release oxygen come the reaction-center chlorophyll

b. Harvest photons and transfer light energy to the reaction-center chlorophyll

c. Synthesize ATP indigenous ADP and Pi

d.transfer electron to ferredoxin and then NADPH

e. Concentration photons in ~ the stroma


The reaction-center chlorophyll that this device is recognized as P700 because

a. There are 700 chlorophyll molecule at this center

b.this pigment is ideal at soaking up light v a wavelength that 700nm

c.there room 700 photosytem I components to each chloroplast

d. The absorbs 700 photons every microsecond

e. The plastoquinone reflects light with a wavelength the 700 nm


All that the events listed below take place in the irradiate reactions the photosynthesis other than A) oxygen is produced. B) NADP+ is diminished to NADPH. C) carbon dioxide is incorporated into PGA. D) ADP is phosphorylated to yield ATP. E) irradiate is took in and funneled to reaction-center chlorophyll a.


During photosynthesis, clearly shows light has actually enough energy to

a. Force electrons closer come the nucleus

b. Excite electrons

c. Separation a water molecule right into hydrogen and oxygen

d. B and also C only

e. A,B, and C


Which the the adhering to statements about the irradiate reactions that photosynthesis are true?

a. The splitting of water molecules provides a resource of electrons.

b. Chlorophyll (and various other pigments) absorb light energy, i beg your pardon excites electrons.

c. ATP is generated by photophosphorylation.

d. Just A and C room true.

e. A, B, and also C space true.


All of the adhering to are directly associated with photosystem II other than A) exploit of hydrogen electrons from the splitting of water. B) release of oxygen. C) harvesting of light energy by chlorophyll. D) NADP+ reductase. E) P680 reaction-center chlorophyll.


What space the assets of noncyclic photophosphorylation?

a. Heat and also fluorescence

b. ATP and P700

c. ATP and also NADPH

d. ADP and also NADP

e. P700 and also P680


What go cyclic electron circulation in the chloroplasts produce?

a. ATP

b. NADPH

c. Glucose

d. A and b

e. A, b, and c


As a research scientist, you measure up the quantity of ATP and also NADPH spend by the Calvin cycle in 1 hour. You discover 30,000 molecules of ATP consumed, yet only 20,000 molecules of NADPH. Whereby did the extra ATP molecule come from? A) photosystem IIB) photosystem ns C) cyclic electron flowD) straight electron flowE) chlorophyll


In mitochondria, chemiosmosis translocates proton from the matrix right into the intermembrane space, whereas in chloroplasts, chemiosmosis translocates proton from

a. The stroma come the photosystem II.

b. The matrix to the stroma.

c. The stroma to the optical membrane space

d. The intermembrane room to the matrix.

e. ATP synthase to NADP+ reductase


Which of the adhering to statements best describes the relationship in between photosynthesis and also respiration?

a. Respiration is the reversal of the biochemical pathways the photosynthesis.

b. Photosynthesis stores energy in complicated organic molecules, if respiration publication it.

c. Photosynthesis occurs just in plants and also respiration occurs just in animals.

d. ATP molecules are produced in photosynthesis and used increase in respiration.

e. Respiration is anabolic and also photosynthesis is catabolic.


Refer come the selections to answer the following questions. Each an option may be supplied once, an ext than once, or no at all. Show whether the following events occur during

A. Photosynthesis

B. Respiration

C. Both photosynthesis and respiration

D. Neither photosynthesis no one respiration

synthesis that ATP by the chemiosmotic mechanism

a. A

b. B

c. C

d. D


Refer come the choices to price the complying with questions. Each choice may be provided once, much more than once, or no at all. Suggest whether the following events occur during

A. Photosynthesis

B. Respiration

C. Both photosynthesis and respiration

D. No photosynthesis no one respiration

reduction of NADP+

a. A

b. B

c. C

d. D


Refer to the selections to price the following questions. Each choice may be supplied once, an ext than once, or not at all. Show whether the following events occur during

A. Photosynthesis

B. Respiration

C. Both photosynthesis and respiration

D. No photosynthesis no one respiration

the separating of carbon dioxide to kind oxygen gas and also carbon compounds

a. A

b. B

c. C

d. D


Where space the molecule of the electron carry chain discovered in plant cells? A) thylakoid membranes that chloroplastsB) stroma of chloroplastsC) outer membrane of mitochondriaD) matrix of mitochondriaE) cytoplasm


Which of the adhering to statements ideal represents the relationships between the irradiate reactions and the Calvin cycle? A) The light reactions administer ATP and also NADPH come the Calvin cycle, and the cycle returns ADP, Pi, and also NADP+ come the irradiate reactions.B) The light reactions administer ATP and NADPH to the carbon fixation step of the Calvin cycle, and the cycle offers water and also electrons to the light reactions.C) The irradiate reactions it is provided the Calvin cycle v CO2 to develop sugars, and the Calvin cycle provides the light reactions with sugars to produce ATP.D) The light reactions provide the Calvin cycle through oxygen for electron flow, and also the Calvin cycle gives the irradiate reactions through water to split.E) there is no relationship between the irradiate reactions and the Calvin cycle.


Which that the adhering to is (are) forced in the calvin cycle?

A. CO2

B. ATP

C. RuBP

d. A and also B only

e. A, B, and also C


Which statement is false?

A) thylakoid membranes contain the photosynthetic pigments. B) The O2 released during photosynthesis comes from water. C) RuBP is produced during cyclic electron circulation in the irradiate reactions that photosynthesis. D) The light reactions the photosynthesis carry out the power for the Calvin cycle. E) as soon as chlorophyll is reduced, that gains electrons.


For the complying with questions, to compare the irradiate reactions v the Calvin bike of photosynthesis in plants.Use the adhering to key:

A.light reaction alone

B.the Calvin cycle alone

C.both the irradiate reactions and the Calvin cycle

D.neither the light reactions nor the Calvin cycle

E.occurs in the chloroplast however is not component of photosynthesis

Produces molecule oxygen (O2)?

a. A

b. B

c. C

d. D


For the adhering to questions, compare the irradiate reactions v the Calvin cycle of photosynthesis in plants.Use the adhering to key:

A.light reactions alone

B.the Calvin bicycle alone

C.both the light reactions and also the Calvin cycle

D.neither the irradiate reactions no one the Calvin cycle

E.occurs in the chloroplast yet is not component of photosynthesis

Produces NADPH?

a. A

b. B

c. C

d. D


For the following questions, to compare the light reactions with the Calvin cycle of photosynthesis in plants.Use the adhering to key:

A.light reactions alone

B.the Calvin bicycle alone

C.both the light reactions and also the Calvin cycle

D.neither the irradiate reactions nor the Calvin cycle

E.occurs in the chloroplast but is not component of photosynthesis

Produces three-carbon sugars?

a. A

b. B

c. C

d. D


For the adhering to questions, to compare the light reactions through the Calvin cycle of photosynthesis in plants.Use the following key:

A.light reaction alone

B.the Calvin bicycle alone

C.both the light reactions and the Calvin cycle

D.neither the light reactions nor the Calvin cycle

E.occurs in the chloroplast yet is not part of photosynthesis

Requires glucose?

a. A

b. B

c. C

d. D


For the complying with questions, compare the light reactions through the Calvin bike of photosynthesis in plants.Use the adhering to key:

A.light reaction alone

B.the Calvin bicycle alone

C.both the light reactions and also the Calvin cycle

D.neither the irradiate reactions no one the Calvin cycle

E.occurs in the chloroplast yet is not component of photosynthesis

Inactive in the dark?

a. A

b. B

c. C

d. D


Which the the adhering to is (are) true that the enzyme ribulose bisphosphate carboxylase? A) the participates in the Calvin cycle. B) it catalyzes a phosphorylation reaction. C) It has an affinity because that both O2 and also CO2. D) A and also C space true. E) A, B, and C are true.


What space the substrates (normal reactants) because that the enzyme RuBP carboxylase?

A) CO2 and O2 B) CO2 and glucose C) ATP and also NADPH D) triose-P, glucose, and CO2 E) CO2 and also ATP


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Which that the following statements is true concerning the figure?

a. It represents cell processes associated in C4 photosynthesis.

b. It to represent the type of cell structures discovered in video camer plants.

c. It represents an adaptation the minimizes photorespiration.

d. A and C room true.

e. A, B, and also C space true.


Oxygen would certainly inhibit the CO2 fixation reactions in

a. Cell i only.

b. Cell II only.

c. Neither cell ns nor cabinet II.

d. Both cabinet I and cell II.

e. Cell I throughout the night and also cell II during the day.


In i beg your pardon cell would certainly you intend photorespiration?

a. Cell I

b. Cabinet II

c. Cell ns at night

d. Cabinet II at night

e. Neither Cell i nor cabinet II


Why are C4 plants able to photosynthesize through no noticeable photorespiration? A) They perform not take part in the Calvin cycle. B) They usage PEP carboxylase to at first fix CO2. C) they are adjusted to cold, wet climates. D) They conserve water much more efficiently. E) lock exclude oxygen from your tissues.


CAM plants keep stomata closeup of the door in daytime, therefore reducing lose of water. They can do this since they A) fix CO2 right into organic acids during the night. B) deal with CO2 into sugars in the bundle-sheath cells. C) resolve CO2 right into pyruvate in the mesophyll cells. D) use the enzyme phosphofructokinase, i beg your pardon outcompetes rubisco for CO2. E) usage photosystems I and also II in ~ night.A


Photorespiration lowers the efficiency of photosynthesis by preventing the development of A) carbon dioxide molecules. B) 3-phosphoglycerate molecule C) ATP molecules. D) ribulose bisphosphate molecules. E) RuBP carboxylase molecules.


Organisms that have the right to exist with light together an energy resource and an inorganic form of carbon and also other raw materials

a. Are referred to as photoautotrophs.

b. Execute not exist in nature.

c. Are dubbed heterotrophs.

d. Are best classified as decomposers.

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e. Both C and D


If photosynthesizing green algae are noted with CO2 synthesized with hefty oxygen (18O), later analysis will show that all yet one the the following compounds developed by the birds contain the 18O label. The one exemption is A) PGA. B) PGAL. C) glucose. D) RuBP. E) O2.


A plant has actually a unique photosynthetic pigment. The pipeline of this plant show up to be reddish yellow. What wavelength of clearly shows light are not being soaked up by this pigment? A) red and also yellow B) blue and violetC) green and yellow D) blue, green, and also red E) green, blue, and violet