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TEAS practice test A(ATI) questions with
defined answers
Qs Which term describes the bonding together of smaller molecules to form larger molecules? - n ANS✔ Anabolism Qs Which temperature scale is 0 degrees equal to the freezing point of water? - n ANS✔ Celcius Qs Which is most acidic? Vinegar, table salt, baking soda, ammonia - n ANS✔ Vinegar Qs Which of the following is improved when repeated trials of an experiment have consistent results? a) reliability b) validity c)Independent variables d) dependent variables - n
ANS✔
Reliability Qs A patient who has imitation that causes type one diabetes mellitus trying a therapy that will use their own somatic stem cell to restore their insulin production. Before their stem cells can be used for therapy, which of the following should be done? - n ANS✔ A normal gene should be supplied in place of the defective one before therapy Qs What connects the ovaries to the uterus? - n ANS✔ Fallopian tubes Qs In which of the following parts of the digestive system is vitamin B 12 absorbed? A) stomach B) pancreas C) large intestine D) small intestine - n ANS✔ Small intestine ( ileum) Qs Which of the following hormones requires iodine for its production? A) thyroid hormones
B) evaporation occurs when candle wax burns to form smoke. C) condensation occurs when glue solidifies with exposure to air. D) sublimation occurs when dry ice turns into carbon dioxide gas. - n ANS✔ Sublimation occurs when dry ice turns into carbon dioxide gas Qs The growth and human population size is one of the reasons for the rising global temperatures. Arrange the steps in logical order of events to show the casual relationships. - n ANS✔
- Increase in population size
- Increasing the use of fossil fuels
- Increase in greenhouse gas emissions
- Increase in the heat trapped in the atmosphere
- Increase in atmospheric temperatures Qs Which of the following is a chemical property, as opposed to a physical property of water? A) ice is less dense then, and flows on, liquid water B) water can be decomposed into hydrogen and oxygen gas C) water has a high surface tension due to hydrogen bonding D) Bonds between water molecules can be broken by heating - n ANS✔ Water can be decomposed into hydrogen and oxygen gas (Making in breaking a bonds between atoms in a molecule indicate a chemical reaction)
Qs After doing a belly flop into a swimming pool, a child says "the water slap me." Which of the following is a property of water that causes the slap? - n ANS✔ Hydrogen bonding Qs Which of the following explains what happens in the circulatory system during hyperventilation? A) oxygen levels increase, causing an increase in blood pH B) carbon dioxide levels decrease, causing an increase in blood pH C) oxygen levels decrease, causing a decrease in blood pH D) carbon dioxide levels increase, causing a decrease in blood pH - n ANS✔ Carbon dioxide levels decrease, causing an increase in blood PH ( as CO2 levels decrease, blood becomes more basic= increasing blood PH) Qs According to the table, which explains the reason for the use of carbohydrates by the body as a preferred source of energy over lipids? - n ANS✔ Carbohydrates provide instant energy for strenuous exercise (Carbs are water soluble, unlike lipids. They are easily transported and they just sit in the body= energy is easily mobilized) Qs Which of the following is true of centromeres mitotic chromosomes prior to anaphase? A) it is the region where sister chromatids are most closely attached
Which of the following classes of chemical messengers is able to easily diffuse across the cell membrane? A) steroids B) interleukins C) catecholamines D) histamines - n ANS✔ Steroids (They are lipid soluble) Qs Which is the following results from the release of the neurotransmitter dopamine into the nerve synapse? A) The presynaptic neuron fires an action potential B) dopamine binds to a receptor proteins on the membrane of the postsynaptic cell C) dopamine enters a cytoplasm of the postsynaptic cell D) dopamine causes the postsynaptic nerve cell to contract - n ANS✔ Dopamine binds to a receptor proteins on the membrane of the postsynaptic cell Qs Which of the following is a function of a somatic reflex? A) it helps to produce an involuntary response in the absence of a stimulus B) it helps to produce a response quickly to protect the body from harm
C) it helps to produce variable responses to the same sensory input D) it helps the individual to produce an appropriate voluntary response - n ANS✔ It helps to produce a response quickly to protect the body from harm (Reflux actions = involuntary, & respond quickly) Qs Which of the following is an ionic compound? A) PCI B) H2O C) MgF D) NH3 - n ANS✔ MgF (Each Mg has 2 valence electrons & it transfers one electron to each of the fluorine (valence 7) Qs An infants immune system is immature at the time of birth. they received their birthing's parents antibodies through the placenta before birth and from breastmilk after birth. Which term is used to describe this type of immunity? - n ANS✔ Passive immunity Qs
A) cholera B) Leprosy C) Acne D) HIV - n ANS✔ Cholera (diarrhea associated with Cholera is caused by cholera toxin) Qs Which of the following describes the function of the ribosome in a cell? - n ANS✔ Use of genetic information to build specific protein molecules (Site or translation) Qs Which of the following statements are true regarding the lymphatic system? (select all that apply) A) it is a closed circulatory system B) The lymph flows from the interstitial spaces toward the heart C) The lymph transports carbon dioxide to the lungs for expiration D) The lymphatic system helps the body to absorb lipids E) The lymphatic system contains more red blood cells and white blood cells - n ANS✔ B & D
- The lymph flows from the interstitial spaces toward the heart -The lymphatic system helps the body to absorb lipids
Qs Which of the following occurs when a skeletal muscle is in a relaxed state? A) tropomyosin covers myosin-binding sites B) myosin forms cross bridges with actin filament C) CA2+ is released into the cytosol of the muscle cell D) ATP binds to myosin head - n ANS✔ Tropomyosin covers myosin-binding sites Qs Which of the following methods can be used to determine how much volume is taken up by rocks Place in a container? A) Mass the container, mass container with the rocks in it, calculate the difference in these two masses B) Count the number of rocks, mass the rocks, then divide the mass of the rocks by the number of rocks C) fill the container to capacity with water, add rocks to the container, collect the water that overflows and mass it D) mastic container empty, fill it with the rocks and water, then mass it again and find a difference - n ANS✔ C) fill the container to capacity with water, add rocks to the container, collect the water that overflows and mass it Qs
Qs A gene is being copied into a molecule that contains ribose and uracil. Which of the following cellular processes does this describe? A) DNA replication B) translation C) gene splicing D) transcription - n ANS✔ Transcription Qs In humans, A and B alleles are co-dominant over O to determine blood type. Which of the following combinations of parental genotypes has the greatest probability of producing a child with type AB blood? A) AB and BO B) AO and BO C) AB and AB D) AA and BB - n ANS✔ AA and BB Qs Which is the following correctly describes the color change and substance properties for acid base indicator testing? - n ANS✔ Blue litmus turns red, indicating the presence of an acid with a pH< 7
Qs Which of these substances will best dissolve in water? A) CH B) CCI C) HCI D) N2 - n ANS✔ HCI (Ionic compound & dissociates into charged particles called ions) Qs
