EXSC 223 Final Exam Review
Questions and All Actual Answers.
__
______ are membrane junctions that distribute tension across a sheet of cells. - Answer
desmosomes
What is meant by the phrase "principle of complementarity of structures and function"? -
Answer "structure determines function"
or
physiology depends on anatomy
The RNA that has an anticodon and attaches to a specific amino acid is ________ RNA. - Answer
transfer
________ is explained by chemical and physical principles and is concerned with the function of
specific organs or organic systems. - Answer physiology
All epithelial tissue rests upon a ________ composed of connective tissue. - Answer
basement membrane
(basal lamina)
In order for the DNA molecule to get "short and fat" to become a chromosome, it must first
wrap around small molecules called ________. - Answer histones
List 3 factors that affect chemical reaction rates with catalysts. - Answer temperature
pH
concentration of substrate
concentration of product
particle size (small is faster)
Negative feedback systems are responsible for a disruption of homeostasis. - Answer false
A group of cells that are similar in structure and perform a common or related function are
called membranes. - Answer false
Connective tissues always exhibit polarity; that is, they have an apical surface and a basal
surface. - Answer false
, The higher the pH, the higher the hydrogen ion concentration. - Answer false
Achilles was wounded by damage to the tendon connecting his calf muscles to his heel. This and
all tendons are composed mainly of dense regular connective tissue. - Answer true
Ubiquitin tagged proteins are targets for elimination by the proteasome. - Answer true
Telomeres are the regions of chromosomes that code for the protein ubiquitin. - Answer
false
Buffers cause abrupt and large changes in the pH of the body by releasing or binding H+ ions. -
Answer false
The glycocalyx is often referred to as the "cell coat" and plays a role in the transport of water
across the membrane. - Answer false
The shock-absorbing pads between the vertebrae are formed of elastic cartilage. - Answer
false
If a tRNA had an AUC anticodon, it could attach to a(n) ________ mRNA codon. - Answer
UAG
Help create water tight tissues by physically binding cells together. - Answer tight junctions
A gene can best be defined as _______. - Answer a segment of DNA that carries the
instructions for one polypeptide chain
What is true regarding stratified epithelia? - Answer stratified epithelia is present where
protection from abrasion is important
Passive membrane transport processes include ________. - Answer movement of solute
from an area of high solute concentration to an area of low concentration
________ is the epithelium found in the alveoli of the lungs where blood is oxygenated. -
Answer simple squamous epithelium
What would be uniquely important to a fibroblast? - Answer golgi apparatus
Questions and All Actual Answers.
__
______ are membrane junctions that distribute tension across a sheet of cells. - Answer
desmosomes
What is meant by the phrase "principle of complementarity of structures and function"? -
Answer "structure determines function"
or
physiology depends on anatomy
The RNA that has an anticodon and attaches to a specific amino acid is ________ RNA. - Answer
transfer
________ is explained by chemical and physical principles and is concerned with the function of
specific organs or organic systems. - Answer physiology
All epithelial tissue rests upon a ________ composed of connective tissue. - Answer
basement membrane
(basal lamina)
In order for the DNA molecule to get "short and fat" to become a chromosome, it must first
wrap around small molecules called ________. - Answer histones
List 3 factors that affect chemical reaction rates with catalysts. - Answer temperature
pH
concentration of substrate
concentration of product
particle size (small is faster)
Negative feedback systems are responsible for a disruption of homeostasis. - Answer false
A group of cells that are similar in structure and perform a common or related function are
called membranes. - Answer false
Connective tissues always exhibit polarity; that is, they have an apical surface and a basal
surface. - Answer false
, The higher the pH, the higher the hydrogen ion concentration. - Answer false
Achilles was wounded by damage to the tendon connecting his calf muscles to his heel. This and
all tendons are composed mainly of dense regular connective tissue. - Answer true
Ubiquitin tagged proteins are targets for elimination by the proteasome. - Answer true
Telomeres are the regions of chromosomes that code for the protein ubiquitin. - Answer
false
Buffers cause abrupt and large changes in the pH of the body by releasing or binding H+ ions. -
Answer false
The glycocalyx is often referred to as the "cell coat" and plays a role in the transport of water
across the membrane. - Answer false
The shock-absorbing pads between the vertebrae are formed of elastic cartilage. - Answer
false
If a tRNA had an AUC anticodon, it could attach to a(n) ________ mRNA codon. - Answer
UAG
Help create water tight tissues by physically binding cells together. - Answer tight junctions
A gene can best be defined as _______. - Answer a segment of DNA that carries the
instructions for one polypeptide chain
What is true regarding stratified epithelia? - Answer stratified epithelia is present where
protection from abrasion is important
Passive membrane transport processes include ________. - Answer movement of solute
from an area of high solute concentration to an area of low concentration
________ is the epithelium found in the alveoli of the lungs where blood is oxygenated. -
Answer simple squamous epithelium
What would be uniquely important to a fibroblast? - Answer golgi apparatus
