Chapter 2:
Energy, Life, and the Biosphere
Practice Test
1.
What are the nonliving components of any area?
a.
the catalysts
b.
the abiotic factors
c.
plants and animals
d.
the biotic factors
Hint
2.
What is the first act of physical digestion taken when you take your first bite of food?
a.
swallowing
b.
releasing saliva
c.
chewing
d.
peristalsis
Hint
3.
What are the living components of any area?
a.
the biotic factors
b.
the rocks and minerals
c.
the abiotic factors
d.
the catalysts
Hint
4.
What organisms in a community use the Sun's energy to make food?
a.
producers
b.
consumers
c.
decomposers
d.
heterotrophs
Hint
5.
What are wavelike contractions of the muscles of the digestive tract that move food along?
a.
releasing saliva
b.
peristalsis
c.
chewing
d.
swallowing
Hint
6.
What chemical reactions release the free energy of organic compounds for use by organisms?
a.
photosynthesis
b.
chemosynthesis
c.
cell respiration
d.
synthesis
Hint
7.
What are all the chemical activities and changes that take place in a cell or organism?
a.
entropy
b.
catalysts
c.
respiration
d.
metabolism
Hint
8.
What are the processes that break down food?
a.
digestion
b.
ingestion
c.
respiration
d.
circulation
Hint
9.
What is the law that states that energy cannot be created or destroyed?
a.
law of conservation of energy
b.
law of gravity
c.
law of entropy
d.
law of conservation of matter
Hint
10.
What is the portion of Earth in which all ecosystems combine?
a.
the atmosphere
b.
the geosphere
c.
the biosphere
d.
the hydrosphere
Hint
