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MEDS 530a Exam 1 With Questions And Correct Answers
___________ is a fat soluble, produced in the skin on exposure to UV radiation, andnecessary for normal bone growth and function - ANSWER Vitamin D
Starch is a ______________ - ANSWER polysaccharide It is wise to study anatomy alongside with physiology because - ANSWER to understandanatomy requires a complete understanding of physiology
Skin lung and blood vessel walls have which tissue characteristic in common a. reticular fibersb. simple squamous epithelium c. elastic fibers d. simple columnar epithelium - ANSWER Simple squamous epithelium do diffusion:histology
Which of the following epithelia forms the wall of the air sacs across which gasexchange occurs in the lungs a. simple columnar b. simple squamousc. pseudostratified columnar - ANSWER Simple squamous -- diffusion; see in cancer patients Select which reactions will usually be irreversible regarding chemical equilibrium inhuman bodies A. ADP + Pi to make ATP B. glucose to CO2 and H2O
C. glucose molecules joined to make glycogen D. H2O + CO2 to make H2CO3 - ANSWER Glucose to CO2 and H2O The basic structural material of the body is made up of ________ - ANSWER proteins The RNA responsible for carrying the AA to the ribosome for the purpose of proteinsynthesis is - ANSWER tRNA
What property of water is exhibited when we perspire - ANSWER High heat ofvaporization
Choose the correct statement concerning adipose tissue a. Mature fat cells are highly mitotic b. it consists mainly of extracellular matrixc. it's most important function is nutrient storage d. the cell volume is largely taken up by the nucleus - ANS Its most important function isnutrient storage
Which is the term for the vertical section through the body that divides it into left andright sides called - ANS Sagittal
The myocardium is under a great deal of physical stress due to its contractions. Youwould expect to see relatively large numbers of which of the following embedded within their plasma junctions? a. Tight junctionsb. Gap junctions c. desmosomes - ANSWER desmosomes Which of the following is a function of a plasma membrane protein
c. Lymphatic d. Nervous - ANSWER d. Nervous If cells are put into a hypotonic solution containing a solute to which the membrane isimpermeable, what is likely to occur? a. the cells will shrink initially, but will come eventually to equilibrium with thesurrounding solution and return to their original state b. There will be no change in the cells due to diffusing of both solute and solvent into thecell c. The cells will shrink and lose water d. Cell will swell and finally will burst - ANSWER d. Cell will swell and finally will burst The formation of glycogen as energy storage in liver is an example of a. exergonicb. catabolism c. anabolism d. oxidation - ANSWER c. anabolism What is the ratio of fatty acids to glycerol in triglycerides a. 3:1b. 2: c. 4: d. 1:1 - ANSWER a. 3: Which of the following are true about epithelia?a. Pseudostratified epithelia are commonly keratinized b. Stratified epithelia are associated with filtration c. Endothelium provides a slick surface lining all hollow cardiovascular organ
d. Simple epithelia are commonly found in areas of high abrasion - ANSWER c.Endothelium provides a slick surface lining all hollow cardiovascular organ
Which of the following organs or structures would be found in the left iliac region a. Stomach b. Large Intestinesc. Appendix d. Liver - ANSWER b. large intestines An acid with a pH of 6 has _____ hydrogen ions that pure water a. 100 fold moreb. 10 fold fewer c. 100 fold fewer d. 10 fold more - ANSWER d. 10 fold more Myocardium must rhythmically contract for a lifetime. This requires a considerateamount of energy production by the cells. You would expect to see a relatively high amount of which organelle in these cells? a. Mitochondria b. Lysosomesc. Cytoskeleton d. Smooth ER - ANSWER a. Mitochondria Positive feedback differs from negative feedback because a. Positive feedback tends to amplify the initiating stimulus while negative feedbackserves to return the body to a homeostatic balance or "ideal" level.
b. Positive feedback is essential to good health while negative feedback only informs us
a) lining the thoracic cavity b) covering individual lungs c) lining the abdominal cavityd) covering the heart - ANSWER lining the thoracic cavity
A patient is hyperventilating - blowing off of C02 dec blood H+ level. How can thecarbonic acid bicarbonate buffer system function to correct imbalance? - ANSWER H2CO3 dissociates to form more H+ and lower pH Which of the following statements is false - ANSWER larger particles move faster thansmall ones and thus collide more frequently and forcefully
A multilayered epithelium whose basal cells are cuboidal in appearance and the cells atits surface are flat would be called - ANSWER stratified squamous
Which of the following is true of exocrine gland mode of secretion? - ANSWER Merocrineglands do not change during the secretion process
Glands such as the thyroid that secrete their product directly into the blood rather thaninto ducts classified as - ANSWER endocrine
Mitosis - ANSWER division of the genetic material in the nucleus Which of the following imaging devices would most likely help localise a tumor in aperson's brain? - ANSWER MRI
The single most abundant protein in the body is - ANSWER collagen During which phase of mitosis do the identical sets of chromosomes line up along themidline or equator of the cell - ANSWER metaphase
Riboswitches are folded RNAs that act as switches to turn protein synthesis on or off inresponse to - ANSWER changes from the environment
Which of the following does NOT describe uses for the ATP molecules - ANSWERPigment structure
Prevention of water loss is a necessary function for life that would best fit in thecategory of - ANSWER maintaining boundaries
The term pollex refers to the _________ - ANSWER thumb When DNA is replicated it is necessary to unzip strands. Choose which bonding type ismost appropriate to hold strands together - ANSWER hydrogen binding
Some of the nerve endings of the skin are sensitive to temp changes. They are part ofnegative feedback regulating body temperature. These nerve endings represent - ANSWER receptor Select the correct statement regarding stem cell of connective tissuea. Connective tissue does not contain cells b. "Blast" cells are undifferentiated, actively dividing cellsc. Chondroblasts are the main cell type of connective tissue proper d. Connective tissue cells are nondividing - ANS b. "Blast" cells are undifferentiated,actively dividing cells
You are asked to draw blood from the median cubital vein. This is a. Lateral side of footb. Proximal arm c. hand
In which quadrant of the abdominopelvic cavity is the stomach located? ANSWER leftupper
Which of the following is a general function for a fibrous protein? ANSWER Structuralframework
An atom that has an atomic number of 10 and a mass number of 24 has - ANSWER 14neutrons
Which of the following tissues is found in the wall of the uterus is needed - ANSWERsmooth muscle
The transport of water across plasma membrane can be explained by all of the followingexcept - ANSWER carrier mediated facilitated diffusion
A structure that is composed of 2 or more tissue types that work together to performspecific functions for the body is an - ANSWER organ
If a cell is non-selectively engulfing samples of extracellular fluid, for example to absorbnutrients it will likely utilize - ANSWER pinocytosis
The dorsal body cavity is the site of which of the following - ANSWER brain Centrioles functions include - ANSWER organizing the mitotic spindle in cell division Mesenchymal cells are most commonly found in ___________ tissue - ANSWER embryonic The coxal joint is most likely found in the ________ region of the body - ANSWER hip Calcium ions are stored in - ANSWER the smooth ER, in some types of muscle cells
A type of transport protein in the plasma membrane of cells lining the interior of theintestine permits the diffusion of sodium ions down their concentration gradient. The ions diffuse through the transport protein and into the cell. These transport proteins willuse the kinetic energy of the diffusing sodium ions - ANSWER Symporter
Choose the most correct statement with regard to nucleic acids - ANSWER DNA is along, double stranded molecule composed of A, T, G, and C bases
Which of the following elements us necessary for nerve impulse - ANSWER Sodium Which tissue type is formed by many cells joining multinucleated cells - ANSWERskeletal
The salivary glands are a good example of a ____________________________ exocrinegland - ANSWER compound tubuloalveolar
Expiration refers to the manner in which the body expels the useless C02 from the blood.This is a type of- ANSWER Excretion of metabolic waste
Edema occurs when - ANSWER Areolar tissue absorbs excess fluid in an injured region When tissues are damaged or infected, chemical cues will be given off that will alter theplasma membrane of cells lining the nearby vessels. these proteins will bind to circulating white blood cells ringing them in to the site of injury or infection. Theseglycoproteins would best be described as - ANSWER Cell-Adhesion molecules
A ciliated version of pseudostratified columnar epithelium containing mucus secretinggoblet cells - ANSWER lines most of the respiratory tract
The shape of the external ear is maintained by - ANSWER elastic cartilage
