Biology 101

Which of the following options best describes how energy flows through a consumer?

1.  organic molecules → catabolic reactions → ATP → anabolic reactions and other cellular work
2.  inorganic molecules → ATP → organic molecules → anabolic reactions and other cellular work
3.  ATP → anabolic reactions → organic molecules → catabolic reactions → anabolic reactions and other cellular work
4.  organic molecules → anabolic reactions → ATP → catabolic reactions

Most adult humans consume about 2,000 Calories of food energy each day. What might happen to the energy from this food? Select ALL that apply.

1.  It could be used in the synthesis of fat or other body tissues.
2.  It could be destroyed by the digestion process.
3.  It could be used to generate movement, allowing you to climb a mountain or do other activities.
4.  It could be transformed into heat and released from your body.
5.  It could be excreted as undigested waste in feces, still in its original chemical form.

A compound that is widely used to provide energy to anabolic pathways is:

1.  Glucose.
2.  ATP
3.  ADP

Which of the following statements is true?

1.  Anabolic reactions are only found in photosynthetic organisms.
2.  Anabolic reactions convert complex molecules to simpler ones.
3.  Anabolic reactions produce energy.
4.  Catabolic reactions convert complex molecules to simpler molecules.