Biochemistry Exam #2

If the Delta G of the reaction A -> B is -30kJ/mol, under standard conditions, the reaction:

The conversion of 1 mol of glucose to 2 mol of pyruvate by the glycolytic pathway results in a NET formation of:

Gluconeogensis is the biosynthesis of glucose from simpler, noncarbohydrate precursors such as:

The pentose phosphate pathway produces:

The storage form of carbohydrates in animals is

The glycogen-branching enzyme catalyzes:

The conversion of 2 mol of pyruvate to 1 mol of glucose by gluconeogensis requires:

Brewing beer is a process of:

What type of linkages is/are between the flucose units in glycogen?

The reactions of glycolysis occurs in:

The ___ is the site of most gluconeogensis in mammals.

Glycosidic bond is primary structural linkage in

Which substance is a product of glycolysis, a precursor of gluconeogenesis?

Consider reaction A -> B, if the free energy of B is greater than the free energy of A, the delta G will be:

____ can regulate many metabolic enzymes.

Phosphorylation can be either inactive or active enzymes. This is a key element in the regulation of glycogen metabolism. Phosphorylation of glycogen phosphorylase ___ it; while phosphorylation of glycogen synthase ___ it.

Glucagon is excreted when blood glucose is ___, while insulin is secreted when blood glucose is ___.

The process of fermentation is favored in systems which:

Opposing anabolic and catabolic pathways are often controlled at one or more unique steps in each pathway, which is:

In eukaryotes, the reactions of the citric acid cycle occur in ___

How many CO2's are produced during one turn of the citric acid cycle (from acetyle CoA)?

How many NADH's are produced during one turn of the citryc acid cycle (from acetyle CoA)?

One purpose of the citric acid cycle is to:

If a person is exercising vigorously and not able to take in sufficient oxygen, his or her tissues would probably accumulate excess amounts of:

In the mitochondria NADH and FADH2 are essentially oxidized by ___ since it is the terminal electron acceptor.

Anything that makes the mitochondrial membrane leaky to proton stops ATP synthesis in the mitochondria, because:

Cyanide and carbon monoxide are lethal poisons beause they can block ___ in the mitochondria

Anything that makes the mitochondrial membrane leaky to proton stops ATP synthesis in the mitochondria, because:

Choroplasts have membranes which contain ATP synthase similar to:

During photophosphorylation in plants, electons flow though a series of carriers in the chloroplast. The ultimate electron donor and acceptor are ___ & ____.

Cyanide and carbon monoxide are lethal poisons beause they can block ___ in the mitochondria

Choroplasts have membranes which contain ATP synthase similar to:

The light reactions in photosynthetic higher plants:

During photophosphorylation in plants, electons flow though a series of carriers in the chloroplast. The ultimate electron donor and acceptor are ___ & ____.

The light reactions in photosynthetic higher plants:

What is the source of carbons for the Calvin cycle?

In which part of the chlorplast do the light-dependent reactions of photosynthesis take place?

The process of photosynthetic carbon assimilation (fixation) is also called...

The light-dependent and carbon-assimilation reactions of photosynthesis are linked in that

The major pigment involved in photosynthesis is ___.

The compound that condenses with CO2 in the first reaction of Calvin cycle is:

Photosynthetic phosphorylation and oxidative phsphorylation appear to be generally similar processes, both consisting of ATP synthesis coupled to the transfer of electrons along an electron carrier chain. Name Not true process.

What is TRUE difference about the oxidative phosphoylation and photophsphorylation?

If a mol of NADH were equivalent in energy to 2.5 mols of ATP, the maximum number of mols of ATP which could be formed during conversion of one mol of glucose to pyruic acid would be:

Electrons are passed from enzyme to enzyme along the electon transport chain in mitochondria in the direction of:

Which of the following is a structural polysaccharide in plant cells?

During periods of fasting, which carbohydrates reserves have been exhausted, ___ can provide the glucose used for metabolism in tissues such as brain and erythrocytes.

In order for a reaction to proceed spontaneously from left to right as written:

Which of the following is a catabolic pathway?

Under standard conditions, if the equilibrium constant K of a reaction is 1, then one would expect the Delta G to be:

ATP synthase is located in the ____ of the mitochondrion.

The term 'rubisco' is frequently used in connection with photosynthesis. Rubisco is:

How many CO2's are produced from the complete oxidation of 1 molecule of pyruvate via the citric acid cycle?