teas practice test c science section
pancreatic secretions aid in the digestion of food are produced by which of the following
types of cells? -
acinar cells
which of the following is the collagen rich material that connects muscle to bone? -
tendon
why is RNA inside a cell is almost never found as a single stranded molecule? -
short stretches of complementary sequences can cause RNA to fold back on itself
reticular tissue -
contains thin collagen fibers
areolar tissue -
mixture of various fibers with large open spaces which contain fluid, blood vessels
and cells that surround organs.
the sliding filament theory proposes that which of the following occurs during the contraction
phase of muscle? -
sarcomeres shorten
which of the following is a type of specialized antigen processing cell that activates T cells of
the immune system? -
dendritic cells
plasma cells -
produce antiboties
thrombocytes -
another name for platelets
what is the correct order of events in a signaling pathway in a feedback loop used to maintain
homeostasis? -
stimulus -- receptor -- integration -- effector -- response
what are two endocrine glands that are linked by a venous blood portal system? -
hypothalamus and anterior pituitary
epidermis -
contains living and dead keratinocytes, melanocytes, dendritic/tactile cells
dermis -
contains blood capillaries, hair shafts, nail rootes, and sweat glands
dermal papillae -
wavy projections of the dermis into the epidermis and lock the two layers together
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