Biomedical Engineering EXAM 1
review questions and answers
Engineering applied to human health - answer What is biomedical
engineering?
pregnancy test, glucometer, thermometer, ECG, X-Ray, shots, defibrillator,
MRI, dialysis machines, artificial skin, contacts, Lasik, hearing aids, artificial
heart, valves, hip replacement, drug delivery systems, ect. - answer What
are some examples of what biomedical engineers do?
ionic
covalent-polar
hydrogen-similar to a covalent bond
Vander Waals-non covalent bond, temporary - answer Understand the
different kinds of atomic bonding
proteins specialized to be a catalyst - answer What is an enzyme?
energy currency, 3 phosphate group- nucleotide adenosine - answer What's
ATP?
potential hydrogen= -log(base 10)*[H+]
blood pH- 7.4
controlled by enzymes - answer pH: why is it important, how it is calculated,
how is it controlled in the body
Acids have more [H+]
Bases have more [OH-]
pKa=-log [Ka] = -log([H+][A-]/[HA] - answer Understand difference between
acids and bases, pKa and how to calculate the percent deionization
, DNA and RNA-phosphate group, pentose, and organic base - answer Nucleic
acids: structure and function
muscle contraction, immunization, composed of 20 amino acids linked
together into basic, acidic, polar, and nonpolar
3D structure - answer Proteins: structure and function
major source of energy
monosaccharides, disaccharides (sucrose and lactose), and polysaccharides
(glycogen, starch, and cellulose)
form cyclic structures - answer Carbohydrates
NOT polymers but large molecules
triglyceride (fat), phospholipids (membranes)
construct liposomes
they have a hydrophilic head and a hydrophobic tail - answer Lipids
separates cytosol from extracellular environment, composed of
phospholipids and proteins to interact with signals from the body - answer
Cell Membrane
Active-the process of a molecule moving from an area of low concentration
to high concentration, requires ATP
Passive- the process by which water and small uncharged molecules such as
O2 and CO2 pass through the plasma membrane
facilitated-protein aided transport of molecules across a membrane down its
concentration gradient at a rate greater than that obtained by passive
diffusion - answer Transport across cell membrane
review questions and answers
Engineering applied to human health - answer What is biomedical
engineering?
pregnancy test, glucometer, thermometer, ECG, X-Ray, shots, defibrillator,
MRI, dialysis machines, artificial skin, contacts, Lasik, hearing aids, artificial
heart, valves, hip replacement, drug delivery systems, ect. - answer What
are some examples of what biomedical engineers do?
ionic
covalent-polar
hydrogen-similar to a covalent bond
Vander Waals-non covalent bond, temporary - answer Understand the
different kinds of atomic bonding
proteins specialized to be a catalyst - answer What is an enzyme?
energy currency, 3 phosphate group- nucleotide adenosine - answer What's
ATP?
potential hydrogen= -log(base 10)*[H+]
blood pH- 7.4
controlled by enzymes - answer pH: why is it important, how it is calculated,
how is it controlled in the body
Acids have more [H+]
Bases have more [OH-]
pKa=-log [Ka] = -log([H+][A-]/[HA] - answer Understand difference between
acids and bases, pKa and how to calculate the percent deionization
, DNA and RNA-phosphate group, pentose, and organic base - answer Nucleic
acids: structure and function
muscle contraction, immunization, composed of 20 amino acids linked
together into basic, acidic, polar, and nonpolar
3D structure - answer Proteins: structure and function
major source of energy
monosaccharides, disaccharides (sucrose and lactose), and polysaccharides
(glycogen, starch, and cellulose)
form cyclic structures - answer Carbohydrates
NOT polymers but large molecules
triglyceride (fat), phospholipids (membranes)
construct liposomes
they have a hydrophilic head and a hydrophobic tail - answer Lipids
separates cytosol from extracellular environment, composed of
phospholipids and proteins to interact with signals from the body - answer
Cell Membrane
Active-the process of a molecule moving from an area of low concentration
to high concentration, requires ATP
Passive- the process by which water and small uncharged molecules such as
O2 and CO2 pass through the plasma membrane
facilitated-protein aided transport of molecules across a membrane down its
concentration gradient at a rate greater than that obtained by passive
diffusion - answer Transport across cell membrane
