Chamberlain University-Illinois
BIOS 252
Comprehensive exam BIOS 252 Questions
and Answers 2026 Latest Update
proximal Ans: part of the body that is closer to the center of the body than
another part.
ex: the knee is proximal to the toes
Chemical reaction that uses water and involves breaking molecules down
into smaller pieces Ans: hydrolysis
organelles of the cell Ans: nucleus
ribosomes
endoplasmic reticulum
Golgi apparatus
vesicles
vacuoles
lysosomes
mitochondria
chloroplasts
centrioles
What does the plasma membrane do? Ans: Controls what enters and leaves
the cell
Homeostatic regulatory mechanisms Ans: Negative feedback is used the
most
© 2026 All rights reserved
, 2 | Page
What kind of tissue is blood? Ans: Connective
Saggital Ans: divides body into left and right
transverse plane Ans: Divides body into upper and lower parts
frontal plane Ans: Divides the body into front and back portions.
what muscle provides a major force Ans: prime mover (agonist)
isotonic contractions Ans: muscle length changes and moves the load, the
tension remains relatively constant through the rest of the contractile
period.
come in two flavors concentric and eccentric
attachment to the stationary bone Ans: organ
Striations can be seen on what types of muscle? Ans: cardiac and skeletal
What is the membrane of skeletal muscles Ans: sarcolemma - contains
sarcoplasm, the cytoplasm of muscle cells
Molecule that blocks myosin and actin Ans: Tropomyosin
What is released at the neuromuscular junction that results in muscular
contraction Ans: acetylcholine
What are some factors that increase conduction of action potential Ans:
Axon diameter, internode distance, and myelin sheath thickness
Functional contractile unit of a muscle fiber Ans: sarcomere
IPSP Ans: inhibitory post-synaptic potential; small, transitory change in the
negative direction; i.e., hyperpolarization
What are the muscles that move the eye (know the location, and what
direction) Ans: superior rectus: attaches to top of eye, moves eye upward
inferior rectus: attaches to bottom of eye, moves eye downward
medial rectus: attaches to side of eye near nose, moves eye inward towards
nose
© 2026 All rights reserved