Consider the following two reactions: C6H12O6 + C6H12O6 -> C12H22O11 + H2O (ΔG = +6.5 kcal/mol) ATP -> ADP + Pi (ΔG = -7.3 kcal/mol) If these two reactions are coupled together can the reaction proceed spontaneously?

yes because the combined reaction is exergonic

Once ATP donates its phosphate to a coupled reaction it becomes ADP. The ADP can be converted back to ATP in a(n) ____ reaction.

endergonic

Which of the following best illustrates how feedback inhibition would function in cellular respiration?

High levels of ATP slow down the activity of phosphofructokinase an early enzyme in glycolysis

In the reaction CH4 + 2O2 -> CO2 + 2H2O

CH4 is oxidized and O2 is reduced

During cellular respiration, electrons from glucose are...

removed by oxidation and stored in NADH

When NAD+ _____ electrons, it is ______ and forms NADH.

accepts, reduced

What is the function of NADH and FADH2?

carrying electrons and energy to the electron transport chain

Which of the following statements is TRUE about glycolysis?

glycolysis consumes 2 ATP molecules

Which compound has the highest free energy and produces the most ATP per molecule when oxidized?

glucose

In the equation for cellular respiration, ATP and heat would be on which side of the reaction?

With the prodcts; this is an exergonic reaction

Which of the following are produced during the pyruvate oxidation?

CO2 and NADH

Which of the following statements about the location of cellular respiration processes is TRUE?

the citric acid cyle occurs in the mitochondria matrix

The formation of each pyruvate molecule in glycolysis produces a net of 1 NADH and 1 ATP. However, the breakdown of each glucose molecule produces a net of 2 NADH and 2 ATP during glycolysis. How is this explained?

Glucose is cleaved into two three carbon sugars, both of which are metabolized into pyruvate

Fatty acids can be broken down to acetyl-coA and enter

the citric acid cycle

In a eukaryote, where does oxidative phosphorylation occur?

across the inner mitochondrial membrane

Sports physiologists at an Olympic training center wanted to monitor athletes to determine at what point their muscles were functioning anaerobically. They could do this by checking for the buildup of which molecule?

lactic acid

When heart muscles cells are deprived of oxygen, the heart still pumps. What must the heart cells be able to do?

derive sufficient energy from fermentation

The pigment molecules responsible for photosynthesis are located in the

thylakoid membrane

Chlorophyll a has an absorbance peak at a wavelength of 430 nm while chlorophyll b has an absorbance peak at 453 nm. Which pigment is capable of absorbing the highest energy light?

chlorophyll a

A green plant is first grown in green light and then in blue light. The likely outcome for photosynthesis in both phases is

no plant growth in green light, but increased plant growth in blue light

Which of the following is a three-carbon sugar that is an intermediate of glycolysis and a product of the Calvin cycle?

glyceraldehyde-3-phosphate (G3P)

Where do the enzymatic reactions of the Calvin cycle take place?

stroma of the chloroplast

If the light reactions of photosynthesis stop, how will the Calvin cycle be affected.

the calvin cylce will stop because it will not recieve ATP and NADPH

In the reaction, 6CO2 + 6H2O -> C6H12O6 + 6O2, which side should energy be placed on?

with the reactants, this is an endergonic reaction

Which of the following takes place during the light reaction of photosynthesis?

water is split

Which of the following sequences correctly represents the flow of electrons during photosynthesis?

H2O→NADPH→Calvin Cycle

What would happen to a plant that is treated with a chemical that prevents electrons from moving through the electron transport chain connecting PSII and PSI?

It could not generate an electrochemical H+ gradient across a membrane

In cellular respiration, the electrons which pass through the electron transport chain...

originally came from glucose

A bacterium is carrying out anaerobic respiration in the diagram below. In this process _______ is replacing oxygen in the role of _________.

NO3-; final electron acceptor

A thylakoid that is placed in a basic solution will synthesize ATP even in the absence of light. How is this possible?

a proton gradient is created by the difference in pH

Which would be TRUE if an inhibitor blocked the activity of mitochondrial ATP synthase?

the pH in the space between the mitochondrial membranes would decrease