BIOL 203 PRACTICE EXAM 1 QUESTIONS
AND ANSWERS CONCORDIA
UNIVERSITY
What is simple diffusion?
✔✔High to low concentration, down concentration gradient.
Define facilitated diffusion.
✔✔"Helped"; high to low concentration with a carrier protein. NO ATP.
Define active transport.
✔✔Low to high concentration; needs carrier AND ATP; endo & exocytosis.
Where is simple cuboidal epithelium found?
✔✔Kidney tubules
What is the function of simple columnar epithelium?
✔✔Secretion and absorption
,Where is simple columnar epithelium found?
✔✔Uterine, intestines.
What is the function of simple squamous epithelium?
✔✔Rapid gas diffusion.
Where is simple squamous epithelium found?
✔✔Alveoli in lungs, capillaries
What is the function of transitional epithelium? Example?
✔✔Stretches and protects; urinary bladder.
What is the function of DRY, KERATINIZED stratified squamous
epithelium? Example?
✔✔Protection from drying; skin.
What is the function of MOIST, UNKERATINIZED stratified squamous
epithelium? Example?
✔✔Protection; lining of mouth & esophagus.
What 3 modes of secretion are found in exocrine glands?
✔✔Merocrine, apocrine, holocrine.
What is the function of ciliated pseudostratified epithelium? Example?
✔✔Movement of mucus; linings of trachea and bronchi.
, Which gland is ductless, exocrine or endocrine?
✔✔Endocrine
What is connective tissue classified by?
✔✔Its extracellular matrix
4 types of connective tissue?
✔✔Proper, cartilage, blood, bone.
What is the function of dense irregular collagenous connective tissue?
✔✔Strength in all directions
What is the function of adipose tissue?
✔✔Temp. regulation, insulation, energy storage.
What is the function of elastic cartilage? Examples?
✔✔Flexible framework; outer ear, tip of nose.
The process of tissue repair can occur by...
✔✔Regeneration
The process of tissue repair can occur by...
✔✔Regeneration and fibrosis
What is regeneration?
✔✔New cells of the same type.
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