Ch. 4 Cellular Respiration/Fermentation Test
ATP is called a cell's energy "currency" because
ATP can be "made" in one place and "spent" or used in another
An enzyme that catalyzes the synthesis of ATP is
ATP synthesis
cells can generate as many as 36 molecules of adenosine triphosphate (ATP) from the metabolisim of one molecule of glucose. Which cellular process results in this amount of ATP production?
Aerobic cellular respiration
What process in the diagram is responsible for the greatest production of ATP if oxygen is present?
C
Which of the following is not part of cellular respiration
Calvin cycle
potosynthesis and cellular respiration both involve the use and release of gases. Which statement correctly identifies the role of gases in the two processes?
Cellular respiration uses oxygen and releases carbon dioxide, while photosynthesis uses carbon dioxide and releases oxygen
Letter B corresponds to the process known as the _______________
Kerbs cycle
In the second stage of aerobic respiration, what happens to the electrons that have been depleted of their energy during ATP production?
They combine with oxygen and hydrogen ions to form water
When glycolysis occurs,
a molecule of glucose is split
Which of the following processes produces the most ATP?
aerobic respiration
Fermentation enables glycolysis to continue under
anaerobic conditions
Which of the following organisms do not carry out photosynthesis?
animals
The process of cellular respiration
breaks down food molecules to release stored energy
photosynthesis : oxygen ::
cellular respiration : carbon dioxide
The series of molecules that cause protons to build up on one side of a membrane is a(n)
electron transport chain
During aerobic respiration, the breakdown of a molecule of glucose yeilds a net of up to "four" molecules of ATP
false
t or f; Glycolysis requires oxygen, and therefore is an aerobic process
false
If oxygen is absent during the second stage of cellular respiration
fermentation will occur
Letter A corresponds to what process?
glycolysis
Chloroplasts : photosynthesis ::
mitochondria : cellular respiration
Organisms that are not autotrophs
must consume other organisms to get energy
ATP is composed of a nitrogenous base, a sugar, and
one phosphate group
Cells produce ATP most efficiently in the presence of
oxygen
The final electron acceptor in aerobic respiration is
oxygen
The total amount of ATP that a cell gains for each glucose molecule depends on the presence of
oxygen
When a phosphate group is removed from an ATP molecule,
s substantial amount of energy is released
When cells break down food molecules, energy is
stored temporarily in ATP molecules
Most of the energy used by life on Earth come from the...
sun
In aerobic respiration, a two-carbon molecule combines with a four-carbon molecule as part of
the Kerbs cycle
Water is and end product in
the electron transport chain in aerobic respiration
Which of these statements best explains the process of energy conversion that takes place in the mitochondria?
the energy in the bonds of glucose molecules is transferred to the phosphate bonds in ATP
t or f: ATP is a portable form of "energy currency" inside cells
true
t or f: All organisms need energy to carry out life processes
true
t or f: Glycolysis breaks down glucose into pyruvates
true
t or f: Glycolysis does not require oxygen, and therefore is an anaerobic process
true
t or f: Lactic acid fermentation is an anaerobic process, and therefore requires no oxygen
true
t or f: Through the process of cellular respiration, cells make carbon in glucose into stable carbon dioxide and produce energy
true
How many carbon dioxide molecules are produced during the cellular respiration of two glucose molecules?
twelve
