Chapter 2: Physical Biochemistry || with 100% Errorless Answers.
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Course
Chapter 2: Physical Biochemistry |
Institution
Chapter 2: Physical Biochemistry |
Defined as an energy conversion process in biological systems correct answers Bioenergetics
Photosynthesis and redox reactions are examples of correct answers bioenergetics
transformation of solar energy into chemical energy correct answers photosynthesis
interconversion of chemical energy...
Chapter 2: Physical Biochemistry || with 100% Errorless
Answers.
Defined as an energy conversion process in biological systems correct answers Bioenergetics
Photosynthesis and redox reactions are examples of correct answers bioenergetics
transformation of solar energy into chemical energy correct answers photosynthesis
interconversion of chemical energy through the oxidation and reduction of organic molecules
correct answers Redox Reaction
Used by organisms to perform work
Essential for cell survival
Usually obtained from the environment correct answers Chemical Energy
Three types of work that is required in living systems for energy conversion correct answers
1.Osmotic work
2.Chemical Work
3. Mechanical Work
Maintains differential solute concentrations across biological membranes correct answers
Osmotic work
biosynthesis and degradation of organic molecules correct answers chemical work
muscle contraction in animals correct answers mechanical work
highly ordered steady state in terms of temperature, concentration of biomolecules, and other
parameters
- Requires energy and delays equilibrium
- Example: Living organisms correct answers Homeostasis
state of a system in which no net charge occurs
-Homeostasis is no longer maintained
-Macromolecules tend to equilibrate to their surroundings
-Example: Non-living organisms correct answers Equilibrium
All living organisms on Earth correct answers biosphere
the source of energy on earth correct answers sunlight
Organisms that can use photosynthesis to oxidize water, generate oxygen, and capture chemical
energy in the form of glucose correct answers photosynthesis autotrophs
, Glucose is used at night as metabolic fuel in autotrophs to sustain ______ respiration correct
answers aerobic
Set of metabolic process and reacts that uses oxygen to generate ATP correct answers aerobic
Organisms that cannot convert solar energy to chemical energy directly
-Depend on nutrients that are obtained from autotrophs and other heterotrophs as a source of
energy correct answers Heterotrophs
Gain of electrons
Increase in the number of hydrogens
Decrease in the number of bonds to oxygen correct answers Reduction
Loss of electrons
Decrease in the number of hydrogens
Increase in the number of oxygens correct answers Oxidation
Transfer of electrons from one compound to another in sequential fashion
Used in processes in which chemical work is performed and energy is made correct answers
Redox Reactions
What are major energy conversion pathways in living organisms correct answers 1.
photooxidation
2.photophosphorylation
3.oxidative phosphorylation
Oxidation caused by light
-Used particularly for the oxidation of chlorophyll
-Results in the transfer of an electron fro chlorophyll to an acceptor molecule (plastoquinone)
correct answers Photooxidation
Coupling of the conversion of ADP to ATP to the transfer of electrons in photosynthesis correct
answers photophosphorylation
metabolic pathway that oxidizes nutrients (glucose) in order to generate ATP from ADP correct
answers oxidative phosphorylation
collection of matter in a defined space correct answers system
Three types of systems correct answers open, closed, isolated
matter and energy are freely exchanged with the surroundings correct answers open system
Biological systems are ____ systems since both matter (nutrients and waste products) and energy
(primarily heat) are exchanged with the surroundings correct answers open
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