Biol 260 - Final Exam Detailed Questions And
Expert Answers
Which of the following imaging techniques would be best to use to study the
growth and development of a fetus?
a.) PET
b.) CT
c.) Ultrasonography
d.) MRI
e.) X-ray - ANS c.) Ultrasonography
The single most abundant chemical substance of the body, accounting about 60%
to 80% of body weight, is __________.
a.) hydrogen
b.) oxygen
c.) water
d.) protein - ANS c.) water
Which of the following is a logical organization?
a.) atoms, tissues, molecules and cells
b.) atoms, cells, molecules, tissues
c.) molecules, atoms, cells, tissues
,d.) atoms, molecules, cells, tissues - ANS d.) atoms, molecules, cells, tissues
Which of the following describes the operation of the heart and blood vessels?
a.) systemic physiology
b.) cardiovascular physiology
c.) systemic anatomy
d.) cardiovascular anatomy
e.) vascular physiology - ANS b.) cardiovascular physiology
Produces antibodies that attach to foreign substances.
a.) Immune
b.) Endocrine
c.) Lymphatic
d.) Cardiovascular - ANS a.) Immune
Although a man who weighs 175 pounds on Earth would be lighter on the moon
and heavier on Jupiter, his __________ would not be different.
a.) Weight
b.) Matter
c.) Energy
d.) Mass - ANS d.) Mass
,When the bonds of ATP are broken, energy is released to do cellular work.
a.) mechanical energy
b.) radiant energy
c.) electrical energy
d.) chemical energy - ANS d.) chemical energy
The numbers listed represent the # of electrons in the first, second and third
energy levels, respectively. On this basis, which of the following is an unstable or
reactive atom?
a.) 2
b.) 2, 8, 1
c.) 2, 8
d.) 2, 8, 8 - ANS b.) 2, 8, 1
Produced in the nucleus, this molecule specifies the exact sequence of amino acids
of the protein to be made.
a.) Messenger RNA
b.) Ribosomal RNA
c.) Transfer RNA
d.) Synthetase enzymes
e.) ATP - ANS a.) messenger RNA
, Chromosomal centromeres split and chromosomes migrate to opposite ends of
the cell.
a.) late prophase
b.) telophase
c.) metaphase
d.) anaphase
e.) early prophase - ANS d.) anaphase
Which of the following systems are not capable of producing antibodies that
attach to foreign substances?
a.) cardiovascular
b.) endocrine
c.) lymphatic
d.) immune - ANS a.) cardiovascular
b.) endocrine
c.) lymphatic
Which of the following systems plays a role in protecting underlying organs from
environmental damage and synthesizes vitamin D?
a.) muscular
b.) integumentary
c.) nervous
d.) CVS
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