Four different versions
Question 1 Light dependent reactions are carried out both on and in between
photosystems. This process is like the last stage of
... [Show More] aerobic respiration in that both
Question 2 In the chloroplast, light dependent reactions take place in the
__________________ while light independent reactions take place in the __________________.
Question 3 When your car engine burns the octane in gasoline, at least 50% of the
energy of the octane
Question 4 The value of the three stages of aerobic respiration is their ability to break
down glucose, a single molecule, with the resultant production of about
Question 5 Enzymes are important because they
Question 6 Accessory pigments and chlorophylls work together within the thylakoid
membrane in clusters called __________ . They harvest light energy and use it to transfer
electrons to _______________.
Question 7 Energyreleasing reactions drive biosynthetic ones forward by contributing to a
pool of
Question 8 The energy storage molecule that connects endergonic and exergonic
reactions, driving endergonic reactions forward, is
Question 9 ________ and ________ are products of aerobic respiration.
Question 10 The physicist’s definition of energy is _______________ for use in defining
energy changes within a living cell.
Question 11 The final stage of aerobic respiration involves
Question 12 The cell’s pumping of substances against diffusion forces that would carry
those substances the other way is termed
Question 13 An allosteric enzyme
Question 14 Each wavelength of light has its own
Question 15 The three metabolic pathways that make up aerobic respiration are really all
parts of one larger pathway because
Question 16 Which of the following is not a product of the Krebs cycle?
Question 17 Which of the following phrases best describes the role of NADPH in
photosynthesis?
Question 18 The process of __________ can be defined as about 30 individual, sequential
chemical reactions that form three metabolic pathways: one in the cytoplasm and two
within the mitochondrion.
Question 19 Griffith exposed weak living bacteria to just the fluids from dead virulent
bacteria. Some of these weak bacteria became virulent and could now kill mice. What
control experiment did he do to argue that his weak bacteria changed to virulence in
these studies?
Question 20 Glucose + _________ + 36 ADP yields _________ + 6H2O + 36 _________.
Question 21 DNA is stored within the ____________ of a cell in a __________ fiber called
chromatin.
Question 22 For most chemical reactions in the nonliving world, the energy required to
break bonds in the reactant molecules
Question 23 _________ is a reactant in the process of aerobic respiration and _______ is a
product of the same process.
Question 24 NADPH is formed when
Question 25 Existing chemical bonds between atoms are broken and new ones are
formed between different atoms. This process
For most chemical reactions in the non-living world, the energy required to break bonds in
the reactant molecules
In biosynthesis of a protein, energy for bonding amino acids together comes from
A producer organism is called a “producer” because it produces
Physicists define energy as
Reactants like hydrogen and oxygen molecules and are converted into a product like water
molecules in the course of
Systems that convert energy from one form to another are
In a long metabolic pathway, the multiple changes made to an initial reactant molecule are
entirely controlled by
Energy-releasing reactions drive biosynthetic ones forward by contributing to a pool of
If bacteria can get their energy for life from a single kind of chemical reaction, then that
reaction
An endergonic reaction always
An allosteric enzyme
A useful way for a cell biologist to define energy is
In nature, as energy freely changes from one form to another
On a cold day, your cells depend on ________ to maintain an operating temperature of 37
degrees Celsius.
Whenever chemical bonds are broken, energy is __________. Whenever chemical bonds
form, energy is __________.
Producer organisms convert _______ energy to chemical energy—the energy of C―H and
C―O―H bonds.
Three phosphate groups linked to a ribose sugar which, in turn, is linked to a pyrimidine base
known as adenine: this phrase describes the structure of
An excess amount of product accumulates at the end of a metabolic pathway. The product
then binds to the allosteric site of the first enzyme along the pathway shutting down the
pathway. We call this process
The energy storage molecule that connects endergonic and exergonic reactions, driving
endergonic reactions forward, is
Existing chemical bonds between atoms are broken and new ones are formed between
different atoms. This process
The activation energy of a reaction can be lowered if the reaction is catalyzed by
A single regulatory molecule can shut down multiple metabolic pathways if it is able to
In respiration, chemical energy is transferred from glucose to ATP. The energy transfer
however, is not 100% efficient. In the transfer, some of the energy is lost as
Moving ions across a membrane requires energy when
Which of the following substances would most likely enable a flagellum to drive a bacterium
forward through the medium in which it is swimming?
Metabolic pathways
Glucose gets used up in muscle cells because
Within the cell, useful chemical energy is held in stable form as
In building a protein, when amino acids are to be bonded together
Positively charged protons move freely from one side of the mitochondrial membrane to
If moving ions across a membrane requires energy it is because
To derive energy from an ATP molecule
If the final product of a metabolic pathway begins to build up in excess, the pathway can
often be slowed down by a process called
Light dependent reactions of photosynthesis produce
The wavelengths of light used in photosynthesis are found in the _________ portion of the
electromagnetic spectrum.
When light of the correct wavelength hits a photosynthetic pigment molecule
All of the six carbon atoms in each glucose molecule leave respiration in the form of carbon
dioxide. Most of them leave during which part of aerobic respiration?
Which of the following phrases best describes the role of NADPH in photosynthesis?
In the process of glycolysis one molecule of _______ is converted to two molecules of
__________.
The overall process that uptakes energy-poor molecules (CO2 and H2O) from their reservoirs
in nature and converts them into energy-rich molecules is
The process of aerobic respiration begins with
Photosynthesis and respiration are complementing processes within a global cycle known as
the
Photosynthesis and respiration are complementary processes within
The value of the three stages of aerobic respiration is their ability to break down glucose, a
single molecule, with the resultant production of about
The Krebs cycle’s NADH products are of value because
In photosynthesis, ______ and ______ are used to build_______ and release______.
When electrons flow between photosystems, they ________ which can be used to generate
new ____________ molecules.
New molecules of glucose are produced
Accessory pigments enable the chloroplast to
In photosynthesis the H atoms used to make high-energy carbohydrates like glucose come
from
In the electron transfer phosphorylation process, ______ is a reactant and _____ is a product.
In the chloroplast, light dependent reactions take place in the __________________ while
light independent reactions take place in the __________________.
If fermentation reactions did not occur on earth then in places where no oxygen is available
Oxygen is an important molecule to both respiration and photosynthesis. If evolution created
these two processes one after the other, which would probably have had to appear first on
earth?
During the electron transfer reactions, protons (H+ ions) are pumped (moved) to one side of
the inner membrane of the mitochondrion. The value of this pumping is that the proton
gradient is then used
Fermentation of sugar causes grape juice to become wine. In fermentation, the two products
given off are ____________ and _________. The latter product accumulates in the wine
during the process.
The three metabolic pathways that make up aerobic respiration are really all parts of one
larger pathway because
Which of the following is valuable as the most immediate source of the greatest amount of
ATP energy given off during aerobic respiration?
Light independent reactions serve to
Identify the correct order of the processes of aerobic respiration
In all of aerobic respiration, the last molecule waiting at the very end to accept electrons
The “powerhouse” organelle within the cell in which electron transfer reactions are occur
In the light-dependent reaction, the two photosystems work together to keep the
concentrations of ______ and ______ appropriate for their amounts needed in the lightindependent reaction
During the entire aerobic respiration process, the breakdown of a single molecule of glucose
results in the production of
Which of the following is the most immediate source of the greatest amount of ATP energy
given off during aerobic respiration?
Fermentation of sugar causes bread dough to “rise”. In fermentation, the two products given
off are ____________ and _________. The latter product evaporates from the bread during
the baking process
A chemoautotroph is an organism that gets its energy from _______________ instead of from
_________ as photoautotrophic plants do. (Heterotrophs like humans use sugar for energy.)
Question 1 Light dependent reactions are carried out both on and in between
photosystems. This process is like the last stage of aerobic respiration in that both
Selected Answer: processes involve electron flow. (X)
Question 2 In the chloroplast, light dependent reactions take place in the
__________________ while light independent reactions take place in the __________________.
Selected Answer: thylakoid membrane; stroma
Question 3 When your car engine burns the octane in gasoline, at least 50% of the
energy of the octane
Selected Answer: is lost to the engine block as heat energy.
Question 4 The value of the three stages of aerobic respiration is their ability to break
down glucose, a single molecule, with the resultant production of about
Selected Answer: 36 ATP molecules.
Question 5 Enzymes are important because they
Selected Answer: specify which bonds will be broken in the reactant molecule.
(X)
Question 6 Accessory pigments and chlorophylls work together within the thylakoid
membrane in clusters called __________ . They harvest light energy and use it to transfer
electrons to _______________.
Selected Answer: photosystems; quinone molecules.
Question 7 Energy releasing reactions drive biosynthetic ones forward by contributing to
a pool of
Selected Answer: ATP molecules.
Question 8 The energy storage molecule that connects endergonic and exergonic
reactions, driving endergonic reactions forward, is
Selected Answer: ATP.
Question 9 ________ and ________ are products of aerobic respiration.
Selected Answer: Carbon dioxide, water
Question 10 The physicist’s definition of energy is _______________ for use in defining
energy changes within a living cell.
Selected Answer: not comprehensive enough
Question 11 The final stage of aerobic respiration involves
Selected Answer: the phosphorylation of ADP to ATP by transfer of electrons.
Question 12 The cell’s pumping of substances against diffusion forces that would carry
those substances the other way is termed
Selected Answer: energy of concentration. [Show Less]