=Choose the pair of terms that correctly completes this sentence: Catabolism is to anabolism as exergonic is to ________.
Most cells cannot harness heat to perform work because
temperature is usually uniform throughout a cell.
Which of the following metabolic processes can occur without a net influx of energy from some other process?
A) C6H12O6 + 6 O2 → 6 CO2 + 6 H2O
B) glucose + fructose → sucrose
C) ADP + i → ATP + H2O
D) amino acids → protein E) 6 CO2 + 6 H2O → C6H12O6 + 6 O2
E) 6 CO2 + 6 H2O → C6H12O6 + 6 O2
(this multiple choice question has been scrambled)
If an enzyme in solution is saturated with substrate, the most effective way to obtain a faster yield of products is to
add more of the enzyme
Some bacteria are metabolically active in hot springs because
their enzymes have high optimal temperatures.
If an enzyme is added to a solution where its substrate and product are in equilibrium, what will occur?
Nothing; the reaction will stay at equilibrium.
The immediate energy source that drives ATP synthesis by ATP synthase during oxidative phosphorylation is the
H+ concentration across the membrane holding ATP synthase.
Which metabolic pathway is common to both fermentation and cellular respiration of a glucose molecule?
In mitochondria, exergonic redox reactions
provide the energy that establishes the proton gradient.
The final electron acceptor of the electron transport chain that functions in aerobic oxidative phosphorylation is
What is the oxidizing agent in the following reaction?
Pyruvate + NADH + H+ → Lactate + NAD+
When electrons flow along the electron transport chains of mitochondria, which of the following changes occurs?
The pH of the matrix increases.
Most CO2 from catabolism is released during
the citric acid cycle
The light reactions of photosynthesis supply the Calvin cycle with
ATP and NADPH
Which of the following sequences correctly represents the flow of electrons during photosynthesis?
H2O → NADPH → Calvin cycle
How is photosynthesis similar in C4 plants and CAM plants?
In both cases, rubisco is not used to fix carbon initially.
________ can nourish themselves beginning with CO2 and other nutrients that are inorganic.
Autotrophs, but not heterotrophs
Which of the following does not occur during the Calvin cycle?
release of oxygen
In mechanism, photophosphorylation is most similar to
oxidative phosphorylation in cellular respiration
Which process is most directly driven by light energy?