MOCK BIO 208 EXAM
1. Among the following organs, which one is NOT a part of respiratory system?
A.
B.
C.
D.
Trachea
Bronchi
Alveoli
Stomach
2. Among the following systems, which one provides a framework for the body.
A.
B.
C.
D.
skeletal
respiratory
cardiovascular
urinary
3. Which of the following solution will have the highest concentration of Hydrogen?
A.
B.
C.
D.
Solution A with pH 4.3
Solution B with pH 9.2
Solution C with pH 1.2
Solution B with pH 8.5
4. What does the tissue level of organization consist of?
A.
B.
C.
D.
One or more tissues
Organs with related functions
Individual cells
A group of similar cells
5. Which of the following stimuli will respond to environmental stimuli?
A.
B.
C.
D.
Blood vessel constriction
Production of sweat
Shivering
Muscle contraction
6. Which of the following lists the levels of body organization from smallest to largest?
A.
B.
C.
D.
Tissue, cell, organ, organ system, organism
Organism, organ system, organ, tissue, cell
Cell, tissue, organ, organ system, organism
Organ, organ system, organism, tissue, cell
MOCK BIO 208 EXAM
7. Which of the following is an example of positive feedback?
A.
B.
C.
D.
Increasing muscle contraction during childbirth.
Blood vessels dilate to lower body temperature.
Insulin is released to stop blood sugar from rising.
Insulin is released to stop blood sugar from rising.
8. Which protein structure represents alpha-helices
A.
B.
C.
D.
Primary
Secondary
Tertiary
Quaternary
9. The functional units of proteins are...
A.
B.
C.
D.
amino acids
nucleotides
monosaccharides.
Nitrogenous bases
10. The pH scale is
A.
B.
C.
D.
A logarithmic scale
An exponential scale
A linear scale
None of the above
11. An acidic solution has
A.
B.
C.
D.
A greater concentration of hydroxide ions than hydrogen ions
A greater concentration of hydrogen ions than hydroxide ions
Equal concentration of hydrogen ions and hydroxide ions
None of the above
12. Synthesis of a Dipeptide would be a result of:
A.
B.
C.
D.
Hydrolysis reaction
Dehydration synthesis
Oxidation-reduction
Redox
MOCK BIO 208 EXAM
13. What is the name of the bond that links amino acids together in protein primary
structure?
A. Hydrogen Bond
B. Peptide Bond
C. Glycosidic Bond
D. Phosphodiester Bond
14. In which type of the following bonding does “unequal sharing of electrons” occur?
A.
B.
C.
D.
Nonpolar covalent
Ionic
Polar covalent
Hydrogen
15. Which type of bond is responsible for important properties of water such as: surface
tension, meniscus, turgor pressure, thermal properties?
A.
B.
C.
D.
Nonpolar covalent
Ionic
Polar covalent
Hydrogen
16. Which of the following is carbohydrate storage in plants?
A.
B.
C.
D.
Fructose
Glycogen
Glucose
Starch
17. Saturated fatty acids are “saturated” with _____ atoms.
A.
B.
C.
D.
Oxygen
Carbon
Nitrogen
Hydrogen
18. Which type of lipid is found in cell membranes?
A.
B.
C.
D.
Triglycerides
Phospholipids
Cholesterol
All of the above
19. Which organelle is responsible for sorting proteins in a cell?
A. Golgi complex
MOCK BIO 208 EXAM
B. ER
C. Peroxisome
D. Ribosome
20. Among the following organelles which one is “Nonmembranous” ?
A.
B.
C.
D.
Endoplasmic reticulum
Golgi apparatus
Peroxisomes
Cytoskeleton
21. Which of the following organelle has its own DNA?
A.
B.
C.
D.
Endoplasmic reticulum
Mitochondria
Peroxisomes
Cytoskeleton
22. The function of cilia and flagella is?
A.
B.
C.
D.
Cell movement
Absorption
Adhesion
Secretion
23. If a toxin binds and impairs one of the molecules involved in the synthesis of ATP. The
target organelle for the toxin must be:
A. peroxisomes.
B. mitochondria.
C. ribosomes.
D. the endoplasmic reticulum.
24. Which of the following is true of the endoplasmic reticulum?
A. The endoplasmic reticulum functions in the transport of materials destined to be
endocytosed into the cell.
B. Both the smooth and rough ER are directly involved in protein synthesis.
C. The endoplasmic reticulum is made up of membrane-enclosed spaces used for the
trafficking of materials.
D. The rough ER is involved in metabolism and lipid synthesis.
25. Which of the following is a neutralization reaction?
MOCK BIO 208 EXAM
A.
B.
C.
D.
HCl → H+ + ClNaOH → Na+ + OHNH3 + H+ → NH4+2
HCl + NaOH → NaCl + H2O
26. Chemical energy is __________.
A.
B.
C.
D.
the movement of charged particles
energy stored in bonds between atoms
a form of potential energy
both b and c
27. The four elements that comprise 96% of living matter are __________.
A.
B.
C.
D.
carbon, sodium, nitrogen, oxygen
carbon, hydrogen, sodium, oxygen
carbon, hydrogen, nitrogen, sodium
carbon, hydrogen, nitrogen, oxygen
28. The three main components of all cells include the plasma membrane, the nucleus, and the
__________.
A. DNA
B. cytoplasm
C. Organelle
D. cell wall
29. Phospholipids orient themselves in aqueous solutions such that __________.
A.
B.
C.
D.
the polar heads are pointed toward the center of the membrane
the nonpolar tails are oriented toward the interior of the cell, next to the cytoplasm
the polar heads and nonpolar tails alternate facing inward
the polar heads face the interior and exterior of the cell with the tails forming the center
of the membrane
30. When the anatomy of a body part is intimately tied to its specific function, scientists call this
the principle of ___________.
A.
B.
C.
D.
hierarchical organization
complementarity
homeostasis
negative feedback