BHSC 1200 MIDTERM 1 STUDY GUIDE
quandrants of abdominal pelvic cavity - Answers :separated by median line and trans
umbilical line
-right upper
-right lower
-left upper
-left lower
Regions of the abdominopelvic cavity - Answers :1.right hypochondriac region
2. right lumbar region
3. right iliac region
4. left hypochondriac region
5. left lumbar region
6. left iliac region
7. epigastric region
8. umbilical region
9. hypogastric region
separated by
- transtubercular line- horizontal across hip bones
-subcostal- horizontal above waste
- left and right midclavicular - vertical down nipples
Function of Na/K pump - Answers :It accomplishes the transport of three Na+ to the
outside of the cell and the transport of two K+ ions to the inside. This unbalanced
charge transfer contributes to the separation of charge across the membrane. The
sodium-potassium pump is an important contributer to action potential produced by
nerve cells.
part acts as an ATPase-- enzyme that hydrolyzes ATP
receptor-mediated endocytosis - Answers :The movement of specific molecules into a
cell by the inward budding of membranous vesicles containing proteins with receptor
sites specific to the molecules being taken in; enables a cell to acquire bulk quantities of
specific substances.
6 steps--
binding- low density lipoprotein binds to specific receptor sites plasma membrane
vesicle formation- vesicle forms around LDL inside cell
, uncoating- vesicle uncoats itself
fusion with endosomes- uncoated vesicle fuses with endosome and LDL particles
separate from receptor
recycling of receptors to plasma membrane- receptors pinch off forming transport
vesicles to return to plasma membrane
degradation in lysosomes- LDL combines with lysosome for it to be digested
Microfilaments - Answers :Long, thin fibers that function in the movement and support of
the cell
composed of actin and myosin
help with muscle contraction, cell division and cell locomotion
intermediate filaments - Answers :Threadlike proteins in the cell's cytoskeleton that are
roughly twice as thick as microfilaments
stabilize position of organelles and nucleus and help attach cells to one another
Microtubules - Answers :A hollow rod composed of tubulin proteins that makes up part
of the cytoskeleton in all eukaryotic cells and is found in cilia and flagella.
help determine cell shape,
help movement of organelles like secretory vesicles, chromosomes in cell division
Smooth Endoplasmic Reticulum - Answers :An endomembrane system where lipids are
synthesized, calcium levels are regulated, and toxic substances are broken down.
Rough Endoplasmic Reticulum - Answers :An endomembrane system covered with
ribosomes where many proteins for transport are assembled.
glycoproteins are synthesized here
Golgi Complex/Apparatus - Answers :Function - Sort / modify molecules and packages
them in vesicles for storage or transport
Form - Complex series of folded membranes shaped like pancakes
Lysosomes - Answers :cell organelle filled with enzymes needed to break down certain
materials in the cell
transports final products of digestion form golgi complex into cytosol
digest worn out organelles, entire cells and extracellular materials
Peroxisomes - Answers :Contain oxidase enzymes that detoxify alcohol, hydrogen
peroxide, and other harmful chemicals
quandrants of abdominal pelvic cavity - Answers :separated by median line and trans
umbilical line
-right upper
-right lower
-left upper
-left lower
Regions of the abdominopelvic cavity - Answers :1.right hypochondriac region
2. right lumbar region
3. right iliac region
4. left hypochondriac region
5. left lumbar region
6. left iliac region
7. epigastric region
8. umbilical region
9. hypogastric region
separated by
- transtubercular line- horizontal across hip bones
-subcostal- horizontal above waste
- left and right midclavicular - vertical down nipples
Function of Na/K pump - Answers :It accomplishes the transport of three Na+ to the
outside of the cell and the transport of two K+ ions to the inside. This unbalanced
charge transfer contributes to the separation of charge across the membrane. The
sodium-potassium pump is an important contributer to action potential produced by
nerve cells.
part acts as an ATPase-- enzyme that hydrolyzes ATP
receptor-mediated endocytosis - Answers :The movement of specific molecules into a
cell by the inward budding of membranous vesicles containing proteins with receptor
sites specific to the molecules being taken in; enables a cell to acquire bulk quantities of
specific substances.
6 steps--
binding- low density lipoprotein binds to specific receptor sites plasma membrane
vesicle formation- vesicle forms around LDL inside cell
, uncoating- vesicle uncoats itself
fusion with endosomes- uncoated vesicle fuses with endosome and LDL particles
separate from receptor
recycling of receptors to plasma membrane- receptors pinch off forming transport
vesicles to return to plasma membrane
degradation in lysosomes- LDL combines with lysosome for it to be digested
Microfilaments - Answers :Long, thin fibers that function in the movement and support of
the cell
composed of actin and myosin
help with muscle contraction, cell division and cell locomotion
intermediate filaments - Answers :Threadlike proteins in the cell's cytoskeleton that are
roughly twice as thick as microfilaments
stabilize position of organelles and nucleus and help attach cells to one another
Microtubules - Answers :A hollow rod composed of tubulin proteins that makes up part
of the cytoskeleton in all eukaryotic cells and is found in cilia and flagella.
help determine cell shape,
help movement of organelles like secretory vesicles, chromosomes in cell division
Smooth Endoplasmic Reticulum - Answers :An endomembrane system where lipids are
synthesized, calcium levels are regulated, and toxic substances are broken down.
Rough Endoplasmic Reticulum - Answers :An endomembrane system covered with
ribosomes where many proteins for transport are assembled.
glycoproteins are synthesized here
Golgi Complex/Apparatus - Answers :Function - Sort / modify molecules and packages
them in vesicles for storage or transport
Form - Complex series of folded membranes shaped like pancakes
Lysosomes - Answers :cell organelle filled with enzymes needed to break down certain
materials in the cell
transports final products of digestion form golgi complex into cytosol
digest worn out organelles, entire cells and extracellular materials
Peroxisomes - Answers :Contain oxidase enzymes that detoxify alcohol, hydrogen
peroxide, and other harmful chemicals
