Question: A _______ stroke is bleeding into the brain because of a damaged blood vessel.

Answer Options:
– ischemic – hemorrhagic

Answer: hemorrhagic

 

Question: Which signaling molecule is important for red blood cell synthesis?

Answer Options:
– erythropoietin – hemoglobin (Hb) – thrombopoietin – leukopoietin

Answer: erythropoietin

 

Question: The _______ vena cava drains most of the body inferior to the diaphragm.

Answer Options:
– auxillary – inferior – superior. – frontal

Answer: inferior

 

Question: Hemophilia is characterized by __________

Answer Options:
– inadequate production of heparin – inadequate production of clotting factors – excessive production of fibrinogen – excessive production of platelets

Answer: inadequate production of clotting factors

 

Question: What effect would an increase in venous tone have on mean arterial pressure?

Answer Options:
– It would decrease it by keeping blood from flowing into the veins and backing up blood into the heart. – It would increase it by shifting blood from the veins into the arteries. – It would increase it by increasing total peripheral resistance. – Nothing, the veins do not have any effect on MAP.

Answer: It would increase it by shifting blood from the veins into the arteries.

 

Question: What causes active hyperemia?

Answer Options:
– Blood loss causes skeletal muscle hypoxia leading to adenosine release and vasodilation. – Occluded blood flow causes a dramatic drop in tissue 02 and high levels of COz and Ht causing endothelial cells to release No. – Production of No and 02 by tissues causes vasoconstriction due to enhanced vascular smooth muscle contraction. – Increased metabolism results in a local increase in COz.

Answer: Increased metabolism results in a local increase in CO2

 

Question: The digestive organs within the abdominal cavity are held in place by the _________, a broad serous membranous sac made up of squamous epithelial tissue surrounded by connective tissue.

Answer Options:
– spleen – gallbladder. – stomach – peritoneum

Answer: peritoneum

 

Question: The _______ controls thermoregulation.

Answer Options:
– thyroid – pituitary – hypothalamus – adrenal

Answer: hypothalamus

 

Question: _________ in food are inorganic compounds that work with other nutrients to ensure the body functions properly while ________ are organic compounds found in foods and are a necessary part of the biochemical reactions in the body.

Answer Options:
– Minerals, vitamins – Vitamins, minerals – Nutrients, sugars – Sugars, salts

Answer: Minerals, vitamins

 

Question: The ____________ is the only urinary structure that differs significantly between males and females

Answer Options:
– stomach – bladder – urethra – macula

Answer: urethra

 

Question: _________ hormones act from a distance and __________ hormones act locally.

Answer Options:
– Paracrine, endocrine – Endocrine, paracrine – Renal, parietal – Parietal, renal

Answer: Endocrine, paracrine

 

Question: _________ is the definition of abnormally decreased blood levels of potassium.

Answer Options:
– hypokalemia – hyponatremia – hypophosphatemia – hypochloremia

Answer: hypokalemia

 

Question: What type of reflex can protect the foot when a painful stimulus is sensed?

Answer Options:
– stretch reflex. – gag reflex – withdrawal reflex – corneal reflex

Answer: withdrawal reflex

 

Question: Which of the following functions cannot be attributed to the cerebellum?

Answer Options:
– comparing motor commands and sensory feedback – associating sensory stimuli with learned behavior – coordinating complex movements – processing visual information

Answer: processing visual information

 

Question: Which white matter structure carries information from the cerebral cortex to the cerebellum?

Answer Options:
– cerebral peduncle – superior cerebellar peduncle – middle cerebellar peduncle – inferior cerebellar peduncle

Answer: middle cerebellar peduncle

 

Question: Which of the following is a nonmetal?

Answer Options:
A. Mercury, Hg, Z = 80; B. Sodium, Na, Z = 11; C. Bismuth, Bi, Z = 83; D. Bromine, Br, Z = 35; E. Lithium, Li, Z = 3

Answer: D. Bromine, Br, Z = 35

 

Question: Which of the following is incorrectly matched?

Answer Options:
A. Thermal energy; related to temperature irrespective of the volume; B. Energy; capacity to do work; C. Radiant energy; solar energy able to influence global climate patterns; D. Chemical energy; potential energy

Answer: C. The bond dissociation energy for bond breaking is always negative.

 

Question: If an element is bonded to 4 other atoms and has a formal charge of +1, what group must the element be in?

Answer Options:
A. 16; B. 15; C. 13; D. 14; E. 17

Answer: D. 14

 

Question: The Lewis dot symbol for the S2– ion is

Answer Options:

Answer: A diagram showing S with 8 electrons around it.

 

Question: Assume that an N2 molecule absorbs a photon and goes to its first excited state.

Answer Options:
A. The excited N2 is more stable than N2 in the ground state; B. The bond length of N2 in the excited state is shorter than the bond length of N2 in the ground state; C. The stability of the molecule is unchanged; D. The excited N2 is less stable than N2 in the ground state.

Answer: D. The excited N2 is less stable than N2 in the ground state.

 

Question: Which of the following molecules has a nonzero dipole moment?

Answer Options:
A. BeCl2; B. SF2; C. KrF2; D. CCl4; E. CO2

Answer: B. SF2

 

Question: Which is the strongest acid?

Answer Options:
A. HBrO4; B. HBrO3; C. HBr; D. HBrO; E. HBrO2

Answer: A. HBrO4

 

Question: Arrange the following gases in order of increasing rate of effusion: C2H6, Ar, HCl, and PH3.

Answer Options:
A. Ar < PH3 < C2H6 < HCl; B. C2H6 < HCl < PH3 < Ar; C. Ar < HCl < PH3 < C2H6; D. Ar < PH3 < HCl < C2H6; E. C2H6 < PH3 < HCl < Ar

Answer: D. Ar < PH3 < HCl < C2H6

 

Question: Which of the following atoms does not participate in hydrogen bonding?

Answer Options:
A. F; B. H; C. N; D. O; E. S

Answer: E. S

 

Question: Which of the following is a function of the rough ER?

Answer Options:
Production of proteins, Detoxification of certain substances, Regulation of intracellular calcium concentration, Synthesis of steroid hormones

Answer: Production of proteins

 

Question: Which of the following statements describes smooth muscle cells?

Answer Options:
They are resistant to fatigue, They have a rapid onset of contractions, They cannot exhibit tetanus, They primarily use anaerobic metabolism

Answer: They are resistant to fatigue