TEAS 7 SCIENCE EXAM QUESTIONS
AND ANSWERS
Which of the following body systems develop from the same origin tissue as lungs?
- genitourinary system
- musculoskeletal system
- neuromuscular system
- gastrointestinal - Answer-Gastrointestinal
A scientist predicts that germinating beans will use more oxygen than non-germinating
beans. This prediction is referred to as which of the following?
- a conclusion
- an observation
- a hypothesis
- date collection - Answer-A hypothesis
Which of the following processes causes most of the carbon dioxide from the blood to
move into the alveoli?
- active transport using energy
- diffusion down a concentration gradient
- conversion to carbon monoxide
- passive transport using carrier proteins - Answer-Diffusion down a concentration
gradient
Which of the following is a property of water?
- water is made up of one molecule of hydrogen and two molecules of oxygen
- water dissolves polar ionic compounds
- water requires less heat than ethanol to raise its temperature
- solid water is denser than liquid water - Answer-Water dissolves polar ionic
compounds
Which of the following elements has the smallest atomic radius?
- Ge
-C
- Sn
- Si - Answer-C
Which of the following pancreatic secretions digests starch into disaccharides?
,- trypsin
- chymotrypsin
- amylase
- lipase - Answer-Amylase
Which of the following is use to indicate mass?
- Cm3
- Irm
- Mg
- Mi - Answer-Mg
Histones are proteins associated with which of the following?
- blood
- sperm
- hair follicles
- dna - Answer-DNA
When an ionic salt is dissolved in water, the ions CO3 and K+ are formed. Which is the
formula for the salt?
- KCO3
- K2CO3
- K3CO2
- K(CO3)2 - Answer-K2CO3
A researcher is gathering large amounts of data about patients who have a common
disease and the effectiveness of various medications vs placebo. Which type of graph is
best to show results?
- line graph
- pie chart
- bar graph
- flow chart - Answer-Line graph
Which of the following describes why water has a concave, or downward curving
meniscus when poured in a glass beaker?
- glass has a higher density than water
- water has a higher density than glass
- the adhesive forces with the glass are greater than the cohesive forces
- the cohesive forces with the glass are greater than that adhesive forces - Answer-The
adhesive forces with the glass are greater than the cohesive forces.
, Which of the following statements describes the change in coat coloring of an attic fox
from brown in summer to white in winter?
- the foxs phenotype changes, but the genotype does not
- the foxs genotype changes, but the phenotype does not
- both the phenotype and genotype of the fox change
- neither the phenotype or the genotype of the fox change - Answer-The foxs phenotype
changes, but the genotype does not
A cell is placed in a hypertonic solution. Describe the resulting osmosis.
- there is no flow of water
- the net flow of water into and out of the cell is zero
- there is a net flow of water out of the cell
- there is a net flow of water into the cell - Answer-There is a net flow of water out of the
cell.
What's an example of active transport?
- aquaporins in kidney cells that help concentrate urine
- movement of substance from an area of high concentration to an area of low
concentration.
- movement of sodium and potassium across the cell membrane against the
concentration gradient.
- loss of water from a cell in a hypertonic solution. - Answer-Movement of sodium and
potassium across the cell membrane against the concentration gradient.
What vessel is responsible for carrying blood from the upper body to the right atrium of
the heart?
- pulmonary veins
- aorta
- pulmonary arteries
- superior vena cava - Answer-Superior vena cava
Carbohydrates are composed of which of the following ?
- nucleic acids
- monosaccharides
- isoprenoids
- amino acids - Answer-Monosaccharides
A student investigating the importance of wavelengths above and below the visible
spectrum for photosynthesis sets up an experiment as followers over a 2-month period,
AND ANSWERS
Which of the following body systems develop from the same origin tissue as lungs?
- genitourinary system
- musculoskeletal system
- neuromuscular system
- gastrointestinal - Answer-Gastrointestinal
A scientist predicts that germinating beans will use more oxygen than non-germinating
beans. This prediction is referred to as which of the following?
- a conclusion
- an observation
- a hypothesis
- date collection - Answer-A hypothesis
Which of the following processes causes most of the carbon dioxide from the blood to
move into the alveoli?
- active transport using energy
- diffusion down a concentration gradient
- conversion to carbon monoxide
- passive transport using carrier proteins - Answer-Diffusion down a concentration
gradient
Which of the following is a property of water?
- water is made up of one molecule of hydrogen and two molecules of oxygen
- water dissolves polar ionic compounds
- water requires less heat than ethanol to raise its temperature
- solid water is denser than liquid water - Answer-Water dissolves polar ionic
compounds
Which of the following elements has the smallest atomic radius?
- Ge
-C
- Sn
- Si - Answer-C
Which of the following pancreatic secretions digests starch into disaccharides?
,- trypsin
- chymotrypsin
- amylase
- lipase - Answer-Amylase
Which of the following is use to indicate mass?
- Cm3
- Irm
- Mg
- Mi - Answer-Mg
Histones are proteins associated with which of the following?
- blood
- sperm
- hair follicles
- dna - Answer-DNA
When an ionic salt is dissolved in water, the ions CO3 and K+ are formed. Which is the
formula for the salt?
- KCO3
- K2CO3
- K3CO2
- K(CO3)2 - Answer-K2CO3
A researcher is gathering large amounts of data about patients who have a common
disease and the effectiveness of various medications vs placebo. Which type of graph is
best to show results?
- line graph
- pie chart
- bar graph
- flow chart - Answer-Line graph
Which of the following describes why water has a concave, or downward curving
meniscus when poured in a glass beaker?
- glass has a higher density than water
- water has a higher density than glass
- the adhesive forces with the glass are greater than the cohesive forces
- the cohesive forces with the glass are greater than that adhesive forces - Answer-The
adhesive forces with the glass are greater than the cohesive forces.
, Which of the following statements describes the change in coat coloring of an attic fox
from brown in summer to white in winter?
- the foxs phenotype changes, but the genotype does not
- the foxs genotype changes, but the phenotype does not
- both the phenotype and genotype of the fox change
- neither the phenotype or the genotype of the fox change - Answer-The foxs phenotype
changes, but the genotype does not
A cell is placed in a hypertonic solution. Describe the resulting osmosis.
- there is no flow of water
- the net flow of water into and out of the cell is zero
- there is a net flow of water out of the cell
- there is a net flow of water into the cell - Answer-There is a net flow of water out of the
cell.
What's an example of active transport?
- aquaporins in kidney cells that help concentrate urine
- movement of substance from an area of high concentration to an area of low
concentration.
- movement of sodium and potassium across the cell membrane against the
concentration gradient.
- loss of water from a cell in a hypertonic solution. - Answer-Movement of sodium and
potassium across the cell membrane against the concentration gradient.
What vessel is responsible for carrying blood from the upper body to the right atrium of
the heart?
- pulmonary veins
- aorta
- pulmonary arteries
- superior vena cava - Answer-Superior vena cava
Carbohydrates are composed of which of the following ?
- nucleic acids
- monosaccharides
- isoprenoids
- amino acids - Answer-Monosaccharides
A student investigating the importance of wavelengths above and below the visible
spectrum for photosynthesis sets up an experiment as followers over a 2-month period,
