ATI TEAS 7 Science Practice Test

Question 1 of 5

Fill in the blanks in the following sentence: Enzymes are ________ molecules that serve as _______ for certain biological reactions.

A. complex; suppressors B. acidic; triggers C. small; targets D. large; catalysts

Question 2 of 5

Which of the following statements describes a chemical property of water?

A. Water has a pH of 1. B. A water molecule contains 2 hydrogen atoms and 1 oxygen atom. C. A water molecule contains 2 oxygen atoms and 1 hydrogen atom. D. The chemical formula for water is HO.

Question 3 of 5

How do hydrogen bonds in water affect its characteristics?

A. Hydrogen bonds are not polar enough to attract non-polar molecules. B. Hydrogen bonds cause water to be less dense when it is a solid than when it is a liquid. C. Hydrogen bonds cause water to have high surface tension, allowing some organisms to move across it. D. Hydrogen bonds cause water to be a good solvent.

Question 4 of 5

Which of the following is a constant?

A. The number of protons in an oxygen atom B. The temperature at which iron ore will melt C. The human population size D. The time the sun rises each day

Question 5 of 5

Which of the following is most different from the others?

A. Thyroid gland B. Stomach C. Intestines D. Pancreas

ATI TEAS 7 Science Practice Test

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ATI TEAS 7

ATI TEAS 7