Biology 104 Test 1
1. The scientific study of life is called:
A. biology
B. ecology
C. anatomy
D. biochemistry
E. limnology
2. Human beings are _____ because they are
composed of many cell types.
A. unicellular
B
acellular
C. asymmetrical
D. autotrophic
E. multicellular
3. The network or sphere of life on the planet is
called the:
A. atmosphere
B. hydrosphere
C. biosphere
D. lithosphere
E. stratosphere
4.In a swamp, all of the alligators would represent
a/an _____.
A. organism
B. population
C. community
D. ecosystem
E. biosphere
5. a/an _____ is a group of interbreeding organisms.
A. community
B. biosystem
C. genus
D. family
E. species
6. As the flowers of a sunflower track the sun, they
are exhibiting _____.
A. metabolism
B. autotrophism
C. response
D. periodism
E. none of the above
7. Choose the CORRECT statement.
A. Human beings are part of the biosphere.
B. Human beings are included in one of the four
eukaryotic kingdoms.
C. Human beings are classified as animals,
vertebrates and mammals.
D. Of any living animal, human beings are most
closely related to the apes.
E. AII of the choices are correct
8.
The tentative explanation to be tested is
called:
A. a theory
B. a scientific theory
C. the hypothesis
D. the data
E. the conclusion
9. The information collected during the
experiment or observation is called:
A. a theory
B. a scientific theory
C. the hypothesis
D. the data
E. the conclusion
10. The smallest unit of an element that still retains
the chemical and physical properties of that
element is called:
A. an isotope
B. a nucleus
C. an atom
D. molecular bond
E. neutrino
11. In an atom, the number of protons always
equals the number:
A. of electrons
B. of neutrons
C. of neutron and protons
D. of quarks
E. of neutrinos
12. The atomic number of an atom is determined
by the number of _____.
A. protons
B. neutrons
C. electrons
D. protons and neutrons
E. none of the above
13. _____ are basic building blocks of matter that
cannot be further broken down by ordinary
chemical I means.
A. Atoms
B. Molecules
C. Compounds
D. Emulsions
E. Elements
14. Isotopes of an element differ due to the
number of _____.
A. protons
B. neutrons
C. electrons
D. both protons and electrons
E. neutrinos and protons
15. An electrically neutral atom will have equal
numbers of _____.
A. electrons and neutrons.
B. protons and neutrons.
C. isotopes and electrons.
D. eIectrons and protons.
E. E. none of the above.
16. Two or more atoms that combine are defined as
_____
A. atomic units
B. a molecule
C. a compound
D. an isotope
E. an ion
17. The formation of _____ bonds involves the
transfer of electrons from one atom to another
nearby atom.
A. covalent
B. ionic
C. hydrogen
D. polar
E. all of the above
18. Atoms that share electrons have _____ bonds
A. covalent
B. neutral
C. hydrogen
D. colloidal
E. ionic
A.
19. The biologically important properties of water
are due to what attributes of water?
A. polarity
B. hydrogen bonding
C. water being liquid at room temperature
D. high heat of vaporization
E. aII of the above
20. Choose the correct statement concerning
water.
A. Water is a polar molecule.
B. Water is the most abundant molecule in the
body.
C. 60-70% of total body weight of most organisms
is water.
D. Due to hydrogen bonding, water molecules
are cohesive.
E. AII of the choices are correct.
21. In an acidic solution:
A. the number of H+ is less than the number of
OHB. the number of OH- is greater than the number
of H+
C. the number of H+ is equal to the number of OH
D. the number of H+ is greater than the number of
OH
E. none of the above
22. In a basic solution:
A. the number of OH- is less than the number of
H+
B. the number of OH- is greater than the number
of H+
C. the number of H+ is equal to the number of
OHD. the number of H+ is greater than the number of
OHE. none of the above
23. Joining small molecules (monomers) together to
form longer chains (polymers) through the loss of
water requires a process called _____.
A. hydrolysis
B. dehydration reaction
C. monomerization
D. emulsification
E. None of the choices are correct
24. ____ is the storage form of glucose found in
plants; _______.is the storage form of glucose in
animals.
A. Glycogen; starch
B. Ribose; deoxyribose
C. Hexose; maltose
D. Pyruvic acid; glycogen
E. Starch; glycogen
25. The building block molecules of
polysaccharides are:
A. amino acids
B. disaccharide
C. monosaccharides
D. glycerol
E. steroids
B.
27. The protein structure of alpha helix and beta
pleated sheets refers to the:
A. primary structure
B. secondary structure
C. tertiary structure
D. quaternary structure
E. none of the above
28. Which of the following nitrogenous bases is NOT
found in DNA?
A. cytosine
B. thymine
C. uracil
D. guanine
E. adenine
29. DNA is shaped like a _.
A. single strand
B. beta-chain
C. double decker
D. double helix
E. poly helix
Listing: 1 point each
Provide the classification system for organisms:
30.
31.
32.
33.
34.
35.
36.
37.
___________________________________
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Please list the three structures that make up DNA
and then draw these structures as they occur in the
DNA structure: (1 points each)
38. ___________________________________
39. ___________________________________
40. ___________________________________
Drawing of DNA (4 points)
41/42/43/44.
Provide the appropriate base pairing sequence for
the following DNA sequence
45/46, 47/48, 49/50
TGTCCAATCGACTAC