Biology: The Dynamic Science

Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter 38

Introduction to Animal Organization and Physiology - all with Video Answers

Educators

Chapter Questions

Problem 1

Which tissue type consisting of sheetlike layers of cells can both exchange oxygen and act as a barrier to bacteria?
a. nervous
b. epithelial
c. connective
d. muscle
e. heart

Bryan Valdivia

Bryan Valdivia

Numerade Educator

Problem 2

Which of the following is a constant source of adult stem cells in
a mammal?
a. bone marrow
b. pancreas
c. basal lamina
d. heart muscle
e. kidney

Bryan Valdivia

Numerade Educator

Problem 3

A flexible, rubbery protein in connective tissue is called ___,
whereas a more fibrous, less flexible glycoprotein is called ___.
a. adipose; cartilage
b. endocrine; exocrine
c. sweat; hormones
d. chondroitin sulfate; hydroxyapatite
e. elastin; collagen

Abigail Schammel

Abigail Schammel

Numerade Educator

Problem 4

Adipose tissue:
a. gives elasticity under epithelium.
b. gives strength to tendons.
c. insulates and is an energy reserve.
d. provides movement, support, and protection.
supports the nose and airways.

Bryan Valdivia

Numerade Educator

Problem 5

The bones of an elderly woman break more easily than those of a younger person. You would surmise that with aging, the cell type that diminishes in activity is the:
a. osteocyte.
b. osteoblast.
c. osteoclast.
d. chondrocyte.
e. fibroblast.

Bryan Valdivia

Numerade Educator

Problem 6

Lifting weights will most increase the size of:
a. skeletal muscle.
b. smooth muscle.
c. cardiac muscle.
d. involuntary muscle.
e. interlinked, branched muscle.

Bryan Valdivia

Numerade Educator

Problem 7

Which muscle types appear striated under a microscope?
a. skeletal muscles only
b. cardiac muscles only
c. skeletal muscles and cardiac muscles
d. smooth muscles only
e. keletal muscles and smooth muscles

Bryan Valdivia

Numerade Educator

Problem 8

Which of the following is not a homeostatic response?
In a contest, a student eats an entire chocolate cake in 10 minutes, and his blood glucose level does not change dramatically.
b. A jogger is sweating after a two-mile jog.
c. The pupils in humans' eyes constrict when looking at a light.
d. Physical activity increases carbon dioxide blood levels, which lowers blood $\mathrm{pH}$, and increases breathing.
Oxytocin is released by the hypothalamus during human childbirth.

Bryan Valdivia

Numerade Educator

Problem 9

When you exercise, a skeletal muscle increases its use of $\mathrm{O}_{2}$, which reduces the concentration of $\mathrm{O}_{2}$ in the muscle cells and sets up a requirement for increased $\mathrm{O}_{2}$ uptake from the interstitial fluid. This is an example of:
a. osmolarity.
b. environmental sensing.
c. integration.
d. systemic homeostatic control.
e. local homeostatic control.

Bryan Valdivia

Numerade Educator

Problem 10

The system that coordinates other organ systems is the:
a. skeletal system.
b. reproductive system.
c. muscular system.
d. nervous system.
e. integumentary system.

Abigail Schammel

Abigail Schammel

Numerade Educator