BSCS Biology: A Molecular Approach

Chapter 2: Energy, Life, and the Biosphere

Chapter Test

1.
Which of the following characterizes living things?
A)can move
B)can transform energy into motion
C)grow and develop throughout their entire life span
D)change their environment as they develop
2.
What is a distinction between heterotrophs and autotrophs?
A)Autotrophs consume heterotrophs to obtain energy.
B)Heterotrophs create free energy, while autotrophs use photosynthesis to create energy.
C)Heterotrophs consume autotrophs or other heterotrophs to obtain energy.
D)Only autotrophs carry out cellular respiration.
3.
How does energy flow through a food web?
A)decomposer to producer to consumer
B)producer to decomposer to consumer
C)producer to consumer to decomposer
D)consumer to producer to decomposer
4.
The ____ explains that organisms cannot create their own energy.
A)the second law of thermodynamics
B)the principle of entropy
C)the energy exchange principle
D)the first law of thermodynamics
5.
A release of free energy results in ____ .
A)increased thermodynamic energy
B)increased entropy
C)decreased conservation
D)increased chemical energy
6.
What two things allow an enzyme to work most efficiently?
A)correct temperature and correct catalysts
B)correct temperature and correct pH
C)correct pH and correct substrates
D)correct substrate and correct metabolism
7.
What type of reactions build proteins from amino acids and muscle and tissue from proteins?
A)decomposition reactions
B)biosynthesis reactions
C)metabolism synthesis reactions
D)catalytic reactions
8.
What makes up the ATP nucleotide?
A)adenosine, ribose, and three phosphate groups
B)adenosine, glucose, and two phosphate groups
C)adenine, ribose, and two phosphate groups.
D)adenine, ribose, and three phosphate groups
9.
Enzymes are needed for ____.
A)ingestion
B)chemical digestion
C)physical digestion
D)salivation
10.
Which of the following is a difference between the digestion of carbohydrates and the digestion of proteins?
A)Carbohydrate digestion occurs in the stomach and small intestine, while protein digestion occurs in the mouth and small intestine.
B)Protein digestion occurs in the stomach and small intestine, while carbohydrate digestion occurs in the mouth and small intestine.
C)Carbohydrate digestion occurs in the mouth, stomach, and small intestine, while protein digestion occurs only in the stomach and small intestine.
D)There is no difference in the digestion of carbohydrates and proteins.
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe