BSC 2087 - Human Anatomy and Physiology » Spring 2022 » Test Yourself 3

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Question #1
Which of the following best describes the cell membrane?
A.   Sticky, semifluid material
B.   Double-layered structure with pores
C.   Selective semipermeable membrane
D.   Network of tubular structures
Question #2
How many chromosomes are in a human cell?
A.   92
B.   46
C.   23
D.   12
Question #3
During which phase of mitosis does the nuclear membrane start to dissolve?
A.   Anaphase
B.   Metaphase
C.   Interphase
D.   Prophase
Question #4
Which of the following is not a cause of cell necrosis?
A.   Infection
B.   Blood clot
C.   Injury
D.   Perfusion
Question #5
What term is used to describe the state in which molecules are evenly distributed in the available space?
A.   Equilibrium
B.   Apoptosis
C.   Diffusion
D.   Osmosis
Question #6
What is osmosis?
A.   Movement of water molecules by some type of physical force.
B.   Movement of particles evenly throughout a medium.
C.   Movement of molecules across a cell membrane requiring ATP.
D.   Movement of water molecules across a selective permeable membrane.
Question #7
Active transport requires what chemical compound?
A.   Oxygen
B.   Phosphorous
C.   Adenosine triphosphate
D.   An amino acid
Question #8
What is the key difference between phagocytosis and pinocytosis?
A.   With phagocytosis, the engulfed substances are in solution; with pinocytosis the engulfed substance are in particles.
B.   There is no significant difference.
C.   With phagocytosis, the engulfed substances are in particles; with pinocytosis the engulfed substances are in solution.
D.   With phagocytosis the substance being consumed is preserved, but with pinocytosis the substance is destroyed.
Question #9
Which of the following statements is true regarding specialization among cells?
A.   Specialized cells may lose the ability to reproduce.
B.   Specialization leads to greater autonomy among cells.
C.   Less complex organisms are more likely to have specialized cells.
D.   All cells specialize to some degree.
Question #10
Cancer that occurs in bones, tissues, muscles, and fat is called
A.   lymphoma
B.   myeloma.
C.   sarcoma.
D.   carcinoma.

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