Chapter 9 part 2

Glycolysis results in the net production of which of the following sets of molecules per glucose molecule

2 NADH, 2 pyruvate, and 2 ATP

Which of the following combinations of products would result from three acetyl CoA molecules entering the citric acid cycle

3 ATP, 6 CO2, 9 NADH, and 3 FADH2

Approximately how many molecules of ATP are produced from the complete oxidation of one molecule of glucose (C6H12O6) in aerobic cellular respiration?

30-32

For each mole of glucose (C6, H 12O6) oxidized by cellular respiration, how many moles of CO2 are released in the citric acid cycle

4

Which of these enters the citric acid cycle

Acetyl CoA

Which of these is not a product of the citric acid cycle?

Acetyl CoA(enters the citric cycle)

Structure a is(a flask like cell connected to mitochondrial matrix surrounded by inter membrane space)

Atp Synthase

For each glucose that enters glycolysis, _____ acetyl CoA enter the citric acid cycle

Each glucose produces two pyruvates, each of which is converted into acetyl CoA.

Which of the following molecules is the lowest energy donor of electrons to the electron transport chain

FADH2

Which of these is not a product of glycolysis?

FADH2(product of citric cycle)

If a mitochondrion ran out of molecular oxygen (O2), predict which of the following situations would occur in its electron transport chain.

FMN prosthetic groups would remain reduced and NADH would have nowhere to donate electrons.

is a prosthetic group present in several components of the electron transport chain.

Fe (s)

In chemiosmosis the most direct source of energy used to convert a DP plus Pi to ATP is energy released

For movement of protons through ATP synthase down there electrochemical

Which of the following sequences describes the path by which electrons move from high energy to low energy molecules in aerobic respiration

Glucose to NADH to electron transport chain to oxygen

If the proteins of the electron transport chain were labeled with a fluorescent tag, the florescence observed by a microscopy will be localized to which of the following regions of the mitochondria

Inner membrane

Which of the following statements best describes the electron transport chain

It consists of a series of redox reactions

A glucose molecule is completely broken down to carbon dioxide and water in glycolysis and the citric acid cycle but together these two processes yield only a few molecules of ATP what happens to most of the energy that facilitates of the oxidation of glucose

It is stored in NADH & FADH2

Which of the following statements best describes the primary role played by oxygen in cellular respiration

It serves as the final acceptor for electrons from the electron transport chain.

The proximate (immediate) source of energy for oxidative phosphorylation is

kinetic energy that is released as hydrogen ions diffuse down their concentration gradient

Energy released from the electron transport chain is used to pump H+ ions into which location and eukaryotic cells

mitochondrial intermembrane space

Which of the following processes is driven by chemiosmosis

oxidative phosphorylation

And cellular respiration most ATP molecules are produced by

oxidative phosphorylation (this process, utilizes energy released by electron)

What is the correct order of electron transport compounds from breast electron donor to best electron acceptor

NADH Dash FES of complex I - Q - FE Dash S of complex 3CYTC Dash CYTA of complex Iv-o2

During electron transport, energy from _____ is used to pump hydrogen ions into the _____.

NADH and FADH2 ... intermembrane space

Is the final electron acceptor of the electron transport chain?

O2 (molecular oxygen)

If pyruvate oxidation is blocked, what is the most likely effect on the levels of oxaloacetate and citrate in the citric acid cycle shown in the accompanying figure?

Oxaloacetate will accumulate and citrate will decrease.

Inhibition of which of the following metabolic pathways would result in a decrease of CO2 production compared to fully functional cellular respiration

Oxidation of pyruvate to acetyl and the citric acid cycle

In liver cells, the inner mitochondrial membranes are about five times the area of the outer mitochondrial membranes , which allows for increased rates of which process below

Oxidative phosphorylation

The final electron acceptor in aerobic respiration is

Oxygen

Is a non-protein organic electron carrier within the electron transport chain

Q(ubiquinone)

Which of the following statements by the chemiosmotic synthesis of ATP is correct

The chemo somatic synthesis of ATP requires that electron transport in the inner mitochondrial membrane. We couple to proton transport across the same membrane.

Which of the following reactions produces the majority of the CO2 released by the complete oxidation of glucose

citric acid cycle

Inhibition of which of the following processes would reduce or eliminate generation of a proton-motive force in mitochondria?

pumping of hydrogen ions from the mitochondrial matrix across the inner membrane and into the intermembrane space

In glycolysis, ATP molecules are produced by _____.

substrate-level phosphorylation

In the citric acid cycle ATP molecules are produced by

substrate-level phosphorylation

Which of the following events take place in the electron transport chain

the harnessing of energy from high-energy electrons derived from glycolysis and the citric acid cycle

Which of the following statements best summarizes ATP use and production in the catabolism of each glucose molecule in glycolysis?

two molecules of ATP are used and four molecules of ATP are produced.

The electron stripped from glucose in cellular respiration end up in which compound?

water

In glucose, there is a net gain of _______ ATP

2

For each glucose that enters glycolysis, _____ NADH + H+ are produced by the citric acid cycle.

6(answer) Three NADH+ H+ are produced per each acetyl COA that enters the citric acid cycle

Approximately how much more free energy is supplied to the electron transport chain by NATH than by FADH2

8 kcal/mol

In glycolysis, what starts the process of glucose oxidation?

ATP

Is a multi protein complex within the electron transport chain

Complex III

Donates electrons to the electron transport chain

NADH

Exposing inner mitochondrial membranes to ultrasonic vibrations will disrupt the membranes. However, the fragments will reseal "inside out." The little vesicles that result can still transfer electrons from NADH to oxygen and synthesize ATP. These vesicles can transfer electrons from NADH to oxygen and synthesize ATP, which of the following statements best describes what will happen to the vesicles when an NADH is added

The inside of vesicles will become more acidic

Which of the following statements about the citric acid cycle is correct?

The last reaction in the citric acid cycle produces a product that is a substrate for the first reaction of the citric acid cycle.

How many NADH are produced by glycolysis?

Two NADH molecules are produced by glycolysis.

Exposing inner mitochondrial membranes to ultrasonic vibrations will disrupt the membranes. However, the fragments will reseal "inside out." The little vesicles that result can still transfer electrons from NADH to oxygen and synthesize ATP. After the disruption, when electron transfer and ATP synthesis still occur, what must be present?

all of the electron transport proteins and ATP synthase

What types of cells carry out ATP synthesis by chemiosmosis

all respiring cells, both prokaryotic and eukaryotic, using either oxygen or other electron acceptors