chapter 6 homework
The energy production per acetyl CoA molecule through the citric acid cycle is __________.
1 ATP, 3 NADH, 1 FADH2
How many NADH are produced by glycolysis?
2
the energy released from the redox reaction in the electron transport chain is used by the cell to make---
ATP
During chemiosmosis,
ATP is synthesized when H= ions move through a channel in ATP synthase.
In the first stage of cellular respiration (glycolysis), two molecules of pyruvate are produced. In the remaining stages of cellular respiration, a number of additional products are produced, such as __________. These other stages occur in the __________.
ATP.....mitochondria
Which of these is NOT a product of glycolysis?
FADH2
Which of these enters the citric acid cycle (also called the Krebs cycle)?
acetyl CoA
Which of these is NOT a product of the citric acid cycle (also called the Krebs cycle)?
acetyl CoA
which of the following are products of cellular respiration?
energy to make ATP and carbon dioxide and water
what process takes place in the cytosol of a eukaryotic cell?
glycolysis
Where does glycolysis occur in a eukaryotic cel
in the cytoplasmic fluid
A molecule that functions as the electron donor in a redox reaction____.
loses electron and becomes oxidized
in cellular respiration, glucose----electrons, whereas ------electrons.
loses----oxygen gains
what organelle would you find acetyl CoA formation, The citric acid cycle, and the electron transport chain>
mitgochondria
The enzymes of the citric acid cycle are located in the
mitochondrial matrix and inner mitochondrial membrane.
In cellular respiration, most ATP molecules are produced by _____.
oxidative phosphorylation
After glycolysis but before the citric acid cycle,
pyruvate is oxidized
in cellular respiration, oxygen becomes-----to water (H2O) as its gains electrons (in hydrogen atoms) that came from glucose.
reduce
In glycolysis, ATP molecules are produced by _____.
substrate-level phosphorylation
In the citric acid cycle (also called the Krebs cycle), ATP molecules are produced by _____.
substrate-level phosphorylation
Most NADH molecules generated during cellular respiration are produced during __________.
the citric acid cycle
what is the the correct sequence of steps as engird is extracted from glucose during cellular respiration.
glycolysis--acetyl CoA--Citric acid cycle---electron transport chain
We inhale O2 and we exhale CO2. Carbon dioxide is produced __________.
in the reaction that creates acetyl CoA ( coenzyme A) from pyruvate
In glycolysis there is a net gain of _____ ATP.
two
In glycolysis, what starts the process of glucose breakdown?
ATP
The overall equation for the cellular respiration of glucose is
C6H12O6+6O2=6CO2+6H20+energy
what is the correct general equation for cellular respiration?
C6H12O6+6O2=6CO2+H2O+ ATP energy
primarily, cellular respiration serves to------.
Make ATP tp power the cell's activities
in cellular respiration, organic molecules become oxidized as---picks up electron H+ and becomes reduced to NADH
NAD+
During electron transport, energy from _____ is used to pump hydrogen ions into the _____.
NADH and FADH2....intermembrane space
During fermentation, __________ that was produced during glycolysis is converted back to __________.
NADH, NAD+
in the equation glucose+oxygen=carbon dioxide+water+heat an electron carrier , such as------acts as an energy-storage. molecule when it is------.
NADH-----reduced
------is to a mitochondria as-------is to a chloroplast .
O2---CO2
which statement describes the citric acid cycle
This process produces some ATP and carbon dioxide in the mitochondrion.
By-products of cellular respiration included
carbon dioxide and water
during cellular respiration, NADH
delivers its electron load to the first electron carrier molecule.
The transfer of-----from one molecule to another is an oxidation--reduction reaction, or redox reaction.
electron
Which of the following is the source of the energy that produces the chemiosmotic gradient in mitochondria?
electrons
which of the following best describes the electron transport chain?
electrons pass from one carrier to another, releasing a little energy at each step.
respiration----, and cellular respiration--------
is gas exchange: produce ATP
The proximate (immediate) source of energy for oxidative phosphorylation is _____.
kinetic energy that is released as a hydrogen ions diffused down their concentration gradient
In muscle cells, fermentation produces _____.
lactate and NAD+
in cellular respiration, glucose becomes-----to carbon dioxide(CO2) as out looses ( in Hydrogen atoms).
oxidized
NADH delivers electrons to an electron transport chain, which passes through carrier molecules in a series of redox reaction to the final electron acceptor-----.
oxygen
The final electron acceptor of cellular respiration is _____.
oxygen
What is the ultimate fate of the electrons that are stripped from glucose during cellular respiration?
they are used to form water
how do cells capture the energy released by cellular respiration
they produce ATP
which statement describes glycolysis?
this process splits glucose in half and produces 2 ATPs for each glucose
Which states describes the electron transport chain?
this process uses energy captured from electrons flowing to oxygen to produce most of the ATPs in cellular respiration.
For each glucose that enters glycolysis, _____ NADH enter the electron transport chain.
10
During glycolysis, a molecule of glucose is partially oxidized. What is the net gain of ATP and NADH for each glucose molecule during this chemical pathway?
2 ATP and 2 NADH
oxidation is the----, and reduction is the-----
loss of electrons, gain of electron
which of the following statements regarding photosynthesis and cellular respiration is true?
photosynthesis occurs in chloroplast, and cellular respiration occurs in the mitochondria.
A muscle cell deprived of molecular oxygen will convert glucose to lactic acid to __________.
recycle NADH through fermentation.