QUESTIONS AND WELL VERIFIED
ANSWERS [ALREADY GRADED A+}
REAL EXAM!!!
Phospholipids:
a) are exclusively hydrophilic (attract water) molecules
b) contain hydrophilic tails and hydrophobic head groups
c) are both hydrophilic (attract water) and hydrophobic (repel water) in
nature
,d) form the lipid bilayer, with hydrophobic (repels water) tails directed to the
outside - ANS✔✔---C - are both hydrophilic (attract water), and
hydrophobic (repel water) in nature
A tissue consists of groups of similar cells that have a common function. -
ANS✔✔---T
The anatomical position is characterized by all of the following EXCEPT:
a) body erect
b) arms at sides
c) palms turned posteriorly
d) thumbs pointed laterally - ANS✔✔---C- palms turned posteriorly
Regardless of the variable being regulated, all homeostatic control
mechanisms have at least three interdependent components. - ANS✔✔-
--True. The three components are Affector (sensor), Integrator (decision
maker), and Effector (actor)
Which statement is true concerning membrane transport?
a) tight junctions carry materials from cell-to-cell avoiding membranes
b) Diffusion requires a source of ATP
c) Osmosis is movement of water molecules up a diffusion gradient
d) Osmosis is the movement of water through a selectively permeable
membrane - ANS✔✔---D - Osmosis is the movement of water through a
selectively permeable membrane
Lipids are a poor source of stored energy. T or F - ANS✔✔---F - A
primary function of lipids is long-term storage of energy.
, Epithelial tissues always exhibit "polarity"; that is, they have a free, apical
surface and a basal surface. T or F - ANS✔✔---T
Epithelial tissues are categorized by:
a) morphology
b) matrix type
c) layering
d) cellular function, whether a producer or a digester
e) both a and c - ANS✔✔---E - morphology and layering
The shock-absorbing pads between the vertebrae are formed of
fibrocartilage. T or F - ANS✔✔---True
Select the correct statement regarding adipose tissue.
a) it is composed mostly of extracellular matrix
b) one major function is triglyceride storage
c) mature adipose cells are highly mitotic
d) most of the cell volume is occupied by the nucleus - ANS✔✔---B -
Triglyceride long-term storage is a major function
"Granulation" is complete healing, with all damaged tissues replaced by the
same type as originally present.
T or F - ANS✔✔---F-
"Regeneration" is complete healing.
"Granulation" is scarring. It pulls the wound together and becomes a "scar".