MCCANCES UNDERSTANDING
;r ;r
PATHOPHYSIOLOGY, ;r
CANADIANEDITION2ND EDITION
;r ;r ;r ;r
Chapter 01: ;r ; r Cellular ; r Biology
Huether & McCance: Understanding Pathophysiology,
; r ; r ;r ; r ; r 6th Edition ; r
MULTIPLE CHOICE ; r
1. A student is observing a cell under
; r ; r ; r ; r ;r ;r ; r the ; r microscope. ; r It ; r is
; r observed ; r to have supercoiled DNAwith histones.
;r ; r ;r ;r ; r Which of the ; r ; r
; r following ; r would ; r alsobe observed by the student?
;r ;r ;r ; r ;r
a. A single ;r ; r circular ; r chromosome
b. A nucleus ;r
c. Free-floating nuclear material ; r ; r
d. No ; r organelles
ANS: B
The cell described is a eukaryotic cell, so it has histones and a
; r ; r ; r ; r ; r ; r ; r ;r ;r ;r ;r ;r ;r ;r ;r ;r ;r ;r ;r ; r
;r supercoiled DNA ;r ; r within ; r itsnucleus; ; r thus, ; r the ; r nucleus ; r should ; r be
; r observed.A single circular chromosome called a prokaryote contains
;r ;r ;r ;r ;r ; r ; r ; r
; r free-floating nuclear material but has no organelles. ;r ;r ; r ; r ; r ; r
REF: p. ; r ; r 2
,2. A nurse is instructing the
;r ;r ;r ;r ; r staff about cellular functions. Which cellular
; r ; r ; r ; r ; r
;r function is the nurse describing when an isolated cell absorbs
; r ;r ;r ;r ; r ; r ;r ;r ;r ; r oxygen
; r anduses it to transform nutrients to energy?
;r ;r ; r ; r ; r ; r ; r
, a. Metabolic absorption ; r
b. Communication
c. Secretion
d. Respiration
ANS: D
The cell’s ability to absorb oxygen is referred to as respiration while
;r ;r ;r ;r ;r ;r ;r ;r ;r ;r ; r
;r itscommunication abilityinvolves maintenance of a steady dynamic state,
;r ;r ;r ;r ;r ;r ;r ;r
metabolic absorption provides nutrition, and secretion allows for the
;r ;r ;r ;r ;r ;r ;r ;r ;r
synthesizing of new substances.
;r ; r ; r ;r
REF: p. ; r ; r 2