The study of tissues is called:a. cytology b. embryology c. histology d. physiology e. tissology
C
The liver belongs to what major body system?a. digestive b. nervous c. lymphatic d. urinary e. reproductive
A
An athlete runs a mile and starts to perspire. The resulting evaporation tends to reduce the previously increasingbody temperature. This is an example of:a. positive feedback b. negative feedback c. homeostasis d. a very bad odor e. more than one of the above
E
The basic structural and functional unit of the body is?a. tissue b. chemical c. organ d. cell e. system
D
All of the following are types of tissues except:a. muscular b. connective c. nervous d. extensive e. epithelial
D
The lymphatic system contains all of the following organs except:a. spleen b. thymus c. ureter d. red bone marrow e. lymph nodes
C
Which of the following medical imaging uses a computer to compare radiographs before and after dye injection?a. CT b. ultrasound c. MRI d. PET e. DSA
E
The following is not an example of homeostasis.a. blood glucose staying between 70 - 120 mg/mlb. systolic pressure staying near 100c. fever during the course of a diseased. decrease in intensity of uterine contractions after deliverye. none of the above
E
An example of positive feedback is:a. blood pressure b. blood glucose c. initial blood clotting d. body temperature
C
Interstitial fluid is a form of intracellular fluid. a. true b. false
B
Which of the following involves a chemical change? a. freezing water b. boiling water c. lighting a match d. activating a CO2 extinguisher e. none of the above
C
A young person eats a lot, and adds muscle tissue. This is an example of: a. catabolism b. hydrolysis c. breakdown d. dehydration synthesis e. more than one of the above
D
NH40H is held together by which type of bond? a. covalent b. ionic c. hydrogen
B
An oxidizing agent causes another atom or molecule in the chemical reaction to: a. be reduced b. gain electrons c. be oxidized d. lose electrons e. more than one of the above
E
If an ion has a positive sign then it is: a. a cation b. an anion c. oxidized d. a acid e. all of the above
A
The three amino acids, lysine, tryptophan, & tyrosine are combined. This is an example of: a. hydrolysis b. dehydration synthesis c. anabolism d. catabolism e. more than one of the above
E
If a substance is reduced then: a. it gains electrons d. more than one of the above b. another substance loses electrons e. none of the above c. transfer of electrons between reactants
D
The following phase of matter has no definite shape or volume. a. liquid b. solid c. gas
C
The type of chemical bond that involves sharing of electrons is: a. covalent bond b. hydrogen bond c. ionic bond d. bail bond e. none of the above
A
Molecules that have the same molecular formula but different structural formulas are: a. molecules b. isomers c. compounds d. reactants e. products
B
Chemical reactions that release heat when bonds are broken are: a. anabolic b. catabolic c. exothermic d. endothermic e. more than one of the above
E
Sn + Ag+ à Sn2+ + Ag In the previous equation, name the element that is the oxidizing agent. a. Sn2+ b. Ag+ c. Sn d. Ag e. none of the above
B
A catalyst, an increase in temperature, and increase in concentration of reactants all have the following effect on a chemical reaction: a. decrease reaction rate b. increase reaction rate c. no change on reaction rate
B
The _______ are the atoms/molecules/compounds that interact. a. products b. reactants c. all of the above d. none of the above
B
The type of chemical reaction that builds molecules by removing water is: a. catabolic b. hydrolysis c. dehydration synthesis d. exchange e. oxidation/reduction
C
To move materials against a concentration gradient is: a. osmosis b. diffusion c. active transport d. passive transport e. overseas transport
C
A weak acid would: a. not conduct electricity d. have a pH of 7 b. give off hydroxyl ions e. produce hydrogen ions c. have a pH of more than 7
E
Drop a body cell into a beaker of 2% NaCl solution. The solution would be an example of a(n) ________ solution: a. hypertonic b. isotonic c. hypotonic d. gin and tonic
A
A solution which can hold no more solute particles is called a _________ solution. a. dilute b. concentrated c. saturated d. super-saturated e. none of the above
C
The movement of water from high to low concentration is called: a. diffusion b. osmosis c. active transport d. more than one of the above
A
Because HCl almost completely dissociates, it is called a: a. weak base b. weak acid c. strong base d. strong acid e. neutral
D
Putting a cell in pure water will cause the cell to: a. crenate b. lyse c. stay the same d. crenate then lyse e. more than one of the above
B
The movement of water from high to low concentration across a semi-permeable membrane is called: a. diffusion b. osmosis c. active transport d. passive transport e. more than one of the above
B
In a glass of salt water, if there is salt at the bottom of the glass, this is a ________ solution. a. super-saturated d. dilute b. concentrated e. none of the above c. saturated
A
Any material moving from a higher to lower concentration would describe which term? a. osmosis b. active transport c. energized transport d. diffusion e. more than one of the above
D
Net diffusion stops when the concentration of solute is: a. distributed from high to low concentration d. saturated b. distributed from low to high concentration e. evenly distributed c. separated by a semi-permeable membrane
E
All of the following are examples of a colloidal dispersion except: a. smoke b. silver chloride c. milk d. fog e. none of the above
B
All of the following are examples of an isotonic solution except: a. 5% glucose IV drip d. all of the above b. normal saline IV drip e. none of the above c. distilled water IV drip
C
_________ are a pair of chemicals that resist change in pH. a. neutralization reactions d. all of the above b. buffers e. none of the above c. salts
B
The product(s) of a neutralization reaction (strong acid + strong base) is/are: a. water b. buffer c. salt d. a and b e. a and c
E