2026
Which of the following are TRUE about homeostasis in body temperature?
a)That your body temperature never changes.
b)That your physiology tries to maintain body temperature against perturbations from activity
c)that body temperature never remains consistent. - Answers b)That your physiology tries to maintain
body temperature against perturbations from activity
Multiple types of _______ tissue include collagen fibers, which provide stiffness and elasticity. ______
tissue is largely composed of extracellular components, such as ground substance, whereas transport
_____ tissue functions by transporting molecules through cells.
Options: muscle; connective; nervous; epithelial - Answers 1. connective
2. connective
3. epithelial tissue
Select all of the following TRUE statements.
a) Adipose tissue has a crystalized matrix
b)All connective tissue includes cells.
c)Ground substance may be a liquid. - Answers b)All connective tissue includes cells.
c)Ground substance may be a liquid.
Which of the following is/are a type of epithelia?
a) protective
b) exchange
c) ciliated
d) secretory - Answers a) protective
b) exchange
c) ciliated
d) secretory
Which of the following factors increase the rate of diffusion across a membrane?
a) Increasing the membrane area
b)Increasing membrane thickness
c) Increasing the solute concentration gradient across the membrane
d) Increasing membrane permeability - Answers a) Increasing the membrane area
c) Increasing the solute concentration gradient across the membrane
d) Increasing membrane permeability
What happens to the density of a population of particles in solution?
a)The particles tend to more toward other particles
b)The rate of expansion increases with temperature
c)The edges of the population expand over time.
d)The center of the population remains constant. - Answers b)The rate of expansion increases with
temperature
c)The edges of the population expand over time.
d)The center of the population remains constant.
By what factor would the rate of diffusion change if membrane thickness doubled? - Answers 0.5
What would happen if Na+ -K+ ATPase stopped working in a digestive epithelial cell?
a) [K+] would decrease in the interstitial fluid
b) The Na+ - glucose carrier protein would decrease activity.
c) [Glu] in the cell would begin to decrease.
d) [Na+] in the cell would begin to increase. - Answers b) The Na+ - glucose carrier protein would
decrease activity.
c) [Glu] in the cell would begin to decrease.
d) [Na+] in the cell would begin to increase.
A carrier protein using secondary active transport hydrolyzes ATP to move molecules against their
concentration gradient.
T/F - Answers F
What proteins bind epithelial cells together to provide a strong membrane and chemical barrier?
a) tight junctions