BIO 242 FINAL EXAM QUESTIONS AND
ANSWERS 100% PASS
The following are basic cell functions of all cells except - ANS generating electrical impulses in
order to relay information to other cells
what is the proper progression of the levels of organization of the body? - ANS chemicals,
cells, tissues, organs, body systems, whole body
epithelial tissue has the following functions - ANS 1. it lines the lumen (cavity) of organs that
interact with material from the outside environment
2. it provides a protective barrier
3. it lines endocrine and exocrine glands
--> NOT, it contracts to allow movement
a homeostatic charge that is initiated outside of a target organ is considered - ANS extrinsic
skeletal muscles act as - ANS effectors
a homeostatic response - ANS 1. increase production of red blood cells in response to
donating blood
2. makes you shiver when exposed to a sudden chill.
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,3. makes you sweat when exercising in the hot sun.
ANSWER: all of the above.
the following are all elements of the cell cytoplasm - ANS 1. mitochondria
2. centrioles.
3. peroxisomes
4. NOT CHROMOSOMES
in the nova video shown in class, scientists discovered interference RNA (RNAi) when the
addition of an extra purple pigment gene into a petunia produced - ANS white flowers (no
purple pigment)
what is the function of messenger RNA (mRNA)? - ANS a product of gene transcription that
encodes a protein message.
why does rough endoplasmic reticulum appear rough under the electron microscope? -
ANS ribosomes are embedded within the membrane
products synthesized in the rough and smooth endoplasmic reticulum are destined for use in -
ANS 1. proteins to be secreted to the exterior of the cell
2. proteins incorporated in the plasma membrane
3. lipid derived steroid hormone production
a product synthesized in the rough and smooth endoplasmic reticulum that is not destined for
use is - ANS proteins needed for chemical reactions within the cytosol
when a pore has a ubiquitin tag, what is the result - ANS it is digested into smaller peptides
by enzymes within a proteasome
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, the final sorting and packaging of protein products destined for secretion into the extracellular
space is facilitated by what organelle - ANS the golgi complex
sorting signals on protein products cause secretory proteins to aggregate at the golgi
membrane. coatomer proteins bind to the surface of the membrane and it starts to bow
outwards - ANS (#1) secretory vessicle formation
v-snares on the outside of the secretory vesicle bind to t-snares on the plasma membrane. this
step results in the fusing of vesicle and plasma membrane, which is called - ANS exocytosis
(#4) docking at plasma membrane
lysosomes and peroxisomes - ANS both degrade unwanted or dangerous materials:
lysosomes have hydrolytic enzymes that break down materials by the addition of a water
molecule.
the process of the cell "drinking" extracellular fluid is called - ANS pinocytosis
the binding of target molecules to specific receptor proteins on the outer surface of the plasma
membrane followed by endocytosis is defined as - ANS receptor-mediated endocytosis
pseudopods connect to form a phagosome - ANS phagocytosis
dynamin pinches neck of vessicle - ANS pinocytosis
clathrin causes plasma membrane to bow inward and connects to form a vessicle -
ANS receptor-mediated endocytosis
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
ANSWERS 100% PASS
The following are basic cell functions of all cells except - ANS generating electrical impulses in
order to relay information to other cells
what is the proper progression of the levels of organization of the body? - ANS chemicals,
cells, tissues, organs, body systems, whole body
epithelial tissue has the following functions - ANS 1. it lines the lumen (cavity) of organs that
interact with material from the outside environment
2. it provides a protective barrier
3. it lines endocrine and exocrine glands
--> NOT, it contracts to allow movement
a homeostatic charge that is initiated outside of a target organ is considered - ANS extrinsic
skeletal muscles act as - ANS effectors
a homeostatic response - ANS 1. increase production of red blood cells in response to
donating blood
2. makes you shiver when exposed to a sudden chill.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,3. makes you sweat when exercising in the hot sun.
ANSWER: all of the above.
the following are all elements of the cell cytoplasm - ANS 1. mitochondria
2. centrioles.
3. peroxisomes
4. NOT CHROMOSOMES
in the nova video shown in class, scientists discovered interference RNA (RNAi) when the
addition of an extra purple pigment gene into a petunia produced - ANS white flowers (no
purple pigment)
what is the function of messenger RNA (mRNA)? - ANS a product of gene transcription that
encodes a protein message.
why does rough endoplasmic reticulum appear rough under the electron microscope? -
ANS ribosomes are embedded within the membrane
products synthesized in the rough and smooth endoplasmic reticulum are destined for use in -
ANS 1. proteins to be secreted to the exterior of the cell
2. proteins incorporated in the plasma membrane
3. lipid derived steroid hormone production
a product synthesized in the rough and smooth endoplasmic reticulum that is not destined for
use is - ANS proteins needed for chemical reactions within the cytosol
when a pore has a ubiquitin tag, what is the result - ANS it is digested into smaller peptides
by enzymes within a proteasome
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, the final sorting and packaging of protein products destined for secretion into the extracellular
space is facilitated by what organelle - ANS the golgi complex
sorting signals on protein products cause secretory proteins to aggregate at the golgi
membrane. coatomer proteins bind to the surface of the membrane and it starts to bow
outwards - ANS (#1) secretory vessicle formation
v-snares on the outside of the secretory vesicle bind to t-snares on the plasma membrane. this
step results in the fusing of vesicle and plasma membrane, which is called - ANS exocytosis
(#4) docking at plasma membrane
lysosomes and peroxisomes - ANS both degrade unwanted or dangerous materials:
lysosomes have hydrolytic enzymes that break down materials by the addition of a water
molecule.
the process of the cell "drinking" extracellular fluid is called - ANS pinocytosis
the binding of target molecules to specific receptor proteins on the outer surface of the plasma
membrane followed by endocytosis is defined as - ANS receptor-mediated endocytosis
pseudopods connect to form a phagosome - ANS phagocytosis
dynamin pinches neck of vessicle - ANS pinocytosis
clathrin causes plasma membrane to bow inward and connects to form a vessicle -
ANS receptor-mediated endocytosis
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
