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Chapter Chapter 20: Unifying Concepts of Animal Structure & Function
 
Activities Quiz
 

1 .       Which of the following is a correct match of cell type with structure? (Activity 20A) [Hint]

 nerve cell ... closely joined
 skin cell ... has a large volume
 intestinal cell ... closely joined
 muscle cell ... has proteins that slide back and forth
 skin cell ... has long extensions
2 .       Which of these choices includes the others? (Activity 20B) [Hint]

 atom
 organism
 cell
 tissue
 molecule
3 .       The basic unit of life is the _____. (Activity 20B) [Hint]

 cell
 atom
 organism
 tissue
 molecule
4 .       Which of these is NOT one of the four major categories of tissue? (Activity 20C) [Hint]

 muscle
 epithelial
 connective
 blood
 nervous
5 .       What type of epithelium would you expect to find covering a surface subject to physical forces? (Activity 20D) [Hint]

 simple epithelium
 squamous epithelium
 stratified epithelium
 cuboidal epithelium
 columnar epithelium
6 .       What type of epithelial tissue lines kidney tubules? (Activity 20D) [Hint]

 stratified squamous epithelium
 stratified cuboidal epithelium
 simple squamous epithelium
 simple cuboidal epithelium
 stratified transitional epithelium
7 .       Which of these tissues, found in the lungs, permits gas exchange by diffusion? (Activity 20D) [Hint]

 stratified squamous epithelium
 simple cuboidal epithelium
 stratified cuboidal epithelium
 simple squamous epithelium
 simple columnar epithelium
8 .       What type of epithelial tissue, found in the intestines, absorbs nutrients? (Activity 20D) [Hint]

 stratified cuboidal epithelium
 simple cuboidal epithelium
 simple columnar epithelium
 stratified columnar epithelium
 stratified squamous epithelium
9 .       How does connective tissue differ from the other three major tissue types? (Activity 20E) [Hint]

 Connective tissue often consists of relatively few cells embedded in an extracellular matrix.
 Connective tissue consists of contractile proteins.
 Connective tissue consists of cells capable of transmitting electrical impulses.
 There are three types of connective tissue.
 Connective tissue is found lining body surfaces.
10 .       Which of these describes loose connective tissue? (Activity 20E) [Hint]

 It is a loose weave of fibers that functions as a packing material.
 It is composed of many fibers that connect bone to bone and muscle to bone.
 It is a rigid material that provides structural support.
 It transports nutrients and gases from one part of the body to another.
 It plays a role in padding, insulation, and energy storage.
11 .       Cartilage is found _____. (Activity 20E) [Hint]

 surrounding organs such as the kidneys
 in the heart
 at the ends of bones such as the femur
 covering the surface of your body
 connecting one bone to another
12 .       _____ is the connective tissue specialized for transport. (Activity 20E) [Hint]

 Bone
 Blood
 Adipose tissue
 Muscle tissue
 Cartilage
13 .       What type of muscle is responsible for contractions of the digestive tract and arteries? (Activity 20F) [Hint]

 smooth muscle
 skeletal muscle
 striated muscle
 voluntary muscle
 cardiac muscle
14 .       Cardiac muscle is the only muscle composed of _____ fibers. (Activity 20F) [Hint]

 branched
 unstriated
 unbranched and cylindrical
 spindle shaped
 striated
15 .       _____ muscle is attached to bones. (Activity 20F) [Hint]

 Smooth
 Involuntary
 Cardiac
 Branched
 Skeletal
16 .       Which of these is an example of negative feedback? (Activity 20F) [Hint]

 As a blood clot begins to form, the process of its formation gets faster and faster.
 After you eat, glucagon stimulates an increase in blood sugar levels.
 After you eat, insulin stimulates the lowering of blood sugar levels.
 The digestive enzyme pepsinogen is converted to pepsin by the action of hydrochloric acid; pepsin itself can then convert pepsinogen into pepsin.
 Once labor begins, contractions increase in frequency and intensity.
17 .       A neuron consists of _____. (Activity 20G) [Hint]

 a cell body only
 dendrites only
 axons only
 dendrites, a cell body, and axons
 striations
18 .       Nervous tissue functions _____. (Activity 20G) [Hint]

 as a physical barrier to the invasion of pathogens
 to physically move the body
 to sense stimuli
 to physically support the body
 in the absorption of nutrients