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Nursing Elites

ATI TEAS 7

Biology

1. What are enzymes?

Correct answer: B

Rationale: Enzymes are proteins that speed up chemical reactions in our cells. They act like tiny factories, fitting specific molecules (substrates) into their active site to facilitate reactions.

2. What property of a substance remains constant regardless of changes in its shape or size?

Correct answer: a

Rationale: Mass remains constant regardless of changes in an object's shape or size.

3. How does friction affect motion?

Correct answer: b

Rationale: Friction opposes motion, leading to a decrease in speed or hindering movement.

4. Which element has the same number of protons and neutrons?

Correct answer: D

Rationale: Helium (He) - He-4 has 2 protons and 2 neutrons, while the other options have differing numbers.

5. In the reaction 2H2 + O2 → 2H2O, how many moles of oxygen are required to react completely with 4 moles of hydrogen?

Correct answer: 2

Rationale: The balanced equation indicates a 1:1 ratio between H2 and O2, so 4 moles of H2 require 4 moles of O2, and 2 moles of H2 require 2 moles of O2.

6. Relatively prime numbers share no common factors other than 1. Which of the following pairs of numbers are relatively prime?

Correct answer: B

Rationale: Rationale: - Relatively prime numbers are numbers that share no common factors other than 1. - To determine if two numbers are relatively prime, we need to find the greatest common divisor (GCD) of the two numbers. If the GCD is 1, then the numbers are relatively prime. - Let's calculate the GCD for each pair of numbers: A) GCD(12, 16) = 4, not relatively prime B) GCD(15, 17) = 1, relatively prime C) GCD(20, 24) = 4, not relatively prime D) GCD(28, 36) = 4, not relatively prime Therefore, the pair of numbers 15 and 17 are relatively prime because their greatest common divisor is 1, meaning they share no common factors other than 1.

Similar Questions

Relatively prime numbers share no common factors other than 1. Which of the following pairs of numbers are relatively prime?
Imagine you have an element with atomic number 11 and mass number 23. How many neutrons does it have?
Which statement accurately describes the relationship between electron configuration and the periodic table?
Which term describes the point where parallel rays of light converge or appear to diverge from after passing through a lens or reflecting off a mirror?
A medication order is for 250 micrograms of a drug to be administered subcutaneously. The available syringe measures in milliliters. How many milliliters should the nurse draw up?
Which of the following is the main function of the heart?

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