TEAS test 6, science multiple choice Questions and Complete Solutions
which of the following pairs correctly matches a cellular organelle with its
... [Show More] function?
A. golgi apparatus- protein synthesis
B. smooth endoplasmic reticulum- energy
C. Cytoskeleton- movement
D. cell membrane- storage - ANS: cytoskeleton- movement
which of the following describes an anatomical relationship between two structures in the human body?
A. the mouth is anterior to the nose
B. the ribs are lateral to the sternum
C. the patella is inferior to the tibia
D. muscles are superficial to skin - ANS: the ribs are lateral to the sternum
which of these organs is directly involved in the synthesis of red blood cells in an adult?
A. liver
b. spleen
c. bone marrow
d. lymph nodes - ANS: bone marrow
at the end of a sprint, a runner breathes hard because the medulla oblongata senses which of the following?
a. low oxygen levels in the blood
b. low carbon dioxide levels in blood
c. blood becoming more alkaline
d. blood becoming more acidic - ANS: blood becoming more acidic
which of the following situations would result in increased oxygen diffusion from alveoli into the blood?
a. increase in perfusion and decrease in ventilation
b. an increase in oxygen concentration of blood
c. reduction in alveolar surface area
d. reduction in residual volume of the lung - ANS: reduction in residual volume of the lung
which of the following describes a property of cardiac cells?
a. generation of electrical impulses
b. production of red blood cells
c. immune protection functions
d. removal of waste products from the body - ANS: generation of electrical impulses
which of the following blood component levels would be expected to increase following vaccination?
a. red blood cells
b. antibodies
c. dissolved gases
d. leukocytes - ANS: antibodies
which of the following statements regarding the circulatory system is correct?
a. the sinoatrial node is present in the top section of the right atrium
b. all veins carry deoxygenated blood back to the heart
c. the heart's "lub-dub" sound is caused by the electrical impulse generation
d. the heart's atria have thicker walls than the ventricles - ANS: the sinoatrial node is present in the top section of the right atrium
which of the following physiological responses follows eating a large meal?
a. pulse rate increases
b. peristalsis rate increases
c. enzyme production decreases
d. parasympathetic nervous activity decreases - ANS: peristalsis rate increases
which of the following describes why liver failure is a critical health emergency?
a. the liver produces the majority of digestive enzymes
b. food is filtered through the liver before digestion takes place
c. the liver helps digested food products to be pumped around the body
d. the liver filters digestion products and produces urea as waste - ANS: the liver filters digestion products and produces urea as waste
salivary amylase - ANS: carbohydrate- digesting enzyme produced by salivary glands
pepsinogen - ANS: zymogen form of protease produced by the stomach
parietal cells - ANS: cells that produce acid in the stomach
pyloric sphincter - ANS: valve through which chyme passes from stomach to duodenum
gastrin - ANS: hormone produced by stomach that induces stomach secretions
cholecystokinin - ANS: hormone that induces bile and pancreatic juice secretion
jejunum - ANS: second secretion of small intestine where majority of absorbtion occurs
hepatic portal vein - ANS: blood vessel that carries nutrients directly from small intestine to liver
water - ANS: substance mainly absorbed from waste in large intestine
rectum - ANS: region of large intestine in which feces is stored before elimination
which of the following actions is controlled by the autonomic nervous system?
a. walking
b. chewing
c. heart beating
d. talking - ANS: heart beating
which of the following processes best describes how a signal travels across a nerve synapse?
a. electrical
b. kinetic
c. potential
d. chemical - ANS: chemical
what is the primary component of muscles?
a. fat
b. protein
c. carbohydrate
d. nucleic acid - ANS: protein
which of the following connects the ovaries and uterus?
a. vagina
b. cervix
c. vas deferens
d. fallopian tubes - ANS: fallopian tubes
in which of the following organs is estrogen primarily made?
a. testicles
b. uterus
c. scrotum
d. ovaries - ANS: ovaries [Show Less]