2025 – Complete Study Guide & Practice
Questions REAL EXAM!!
the largest chamber of the heart is the left
ventricle
a tendency of the body to maintain a balanced internal state
homeostasis
what are the 3 types of proteins
globular, fibrous, membrane
adipocytes are seen in adipose and fat tissue. they store ____ and maintain proper energy balance by
storing calories in the form of _____. they also mobilize energy sources in response to ______.
fat, lipids, stress
ribosomes synthesize
proteins
in a chemical change, a _____ substance is produced
new
ex: adding baking soda to a recipe to make it less sour, frying an egg, burning wood
in a physical change, the material involved is structurally the ________ before and after the change
same
ex: crushing a can, melting ice, breaking glass, boiling water,
in an ionic bond, valence electrons are
transferred
how many layers of tissues does the uterus have?
3 (inner endometrium, middle myometrium, outer perimetrium)
what parts of the body produce melanin?
hair, iris, skin
purine bases
A, G
, pyrimidine bases
T, U, C
base pairs
AT (U), GC
enzymes catalyze biochemical reactions by
lowering the activation energy of the reaction, either forward or backward
an ionic bond is between a
metal and nonmetal
eg: NaCl
what is a hypothetical explanation for an occurrence that is based on prior knowledge called?
hypothesis
lying flat on your back
supine
lying on your belly
prone
on the periodic table, where are the elements with the largest atomic radii found?
bottom left corner
endocytic vesicles are formed when
the plasma membrane surrounds a particle outside the cell
the duodenum receives chyme and
further digests it
homeostasis is primarily maintained by what feedback loops?
negative
enzymes change shape when they bind to their
substrates
enzyme activity is sensitive to changes in
temperature
the axon carries action potential (sends out stimuli) in the direction of a ________
synapse