AP Biology Reaction Coupling

Organisms get their energy to do work from ___________ energy.

• solar energy

• chemical energy

• thermal energy

• nuclear energy

A --> B + C

• Anabolic

• Catabolic

A + B --> C

• Anabolic

• Catabolic

Net release of energy

• endergonic

• exergonic

Net intake of energy

• endergonic

• exergonic

A + B --> AB + Energy

This is what type of reaction?

• exergonic

• endergonic

Which of the following is true for anabolic pathways?

• they do not depend on enzymes
• they are usually spontaneous chemical reactions
• they consume energy to build polymers from monomers
• They release energy as they degrade polymers to monomers

A degradative process such as cellular respiration can also be known as...

• catabolic pathway

• kinetic pathway

• endergonic pathway

• anabolic pathway

DNA replication involves unwinding two strands of parent DNA, copying each strand to synthesize complementary strands, and releasing the parent and daughter DNA so now there are two copies of the original strand. Which of the following accurately describes this process?

• This is an anabolic process
• This is a catabolic process
• This is both anabolic and catabolic
• This is a metabolic process but is neither anabolic nor catabolic

To do work, living systems will pair an catabolic reaction with a(n)________________

• exergonic reaction

• oxidative reaction

• ATP synthesis

• anabolic reaction