CNA Prep Course

Select the word meaning “to lessen the effect of something” from the following sentence:

Although the patient had ingested a toxic substance they gave him an antidote that helped to inhibit the adverse effects of the poison.

⁷⁄₁₁₅ – ⁵⁄₂₃₀  = _____

Which of the following structures of the skin is responsible for producing goose bumps?

Muscles are stabilized and covered by _______?

Which of the following circuits carries deoxygenated blood from the right side of the heart to each of the lungs?

If a cell is placed in an isotonic solution, what will likely happen?

⁷⁄₈ + ³⁄₁₆ + ¹⁄₃₂ = ______

A grasshopper, a trout, and a lion would all belong to which of the following?

Petru ran 0.5 kilometers in 3 minutes and 26 seconds.  How many meters did he run?

Use the following reading passage to answer the questions below.

How are Sleep Disorders Supported

The most common problem people have is falling asleep and staying asleep.  For serious sleep disorders, a doctor may advise a prescription drug to be taken nightly.

Selective Gamma-aminobutyric acid medications: These prescription medications target the GABA receptors in the brain. GABA is the neurotransmitter that reduces alertness and promotes relaxation.

Unfortunately, this medication may cause side effects like hallucinations, memory disturbances, and  “black-outs” wherein people report sleepwalking, sleep-eating, and even sleep-driving.

Benzodiazepines: Typically prescribed for anxiety, these prescription drugs activate the GABA receptors in the brain and cause sedation and relaxation. They can be considered extremely addictive with very difficult withdrawal symptoms, and can cause a similar “black-out” effect with users.

Antihistamines: These over-the-counter antihistamines are a common alternative for people who don’t want to take prescription drugs. The most common side effects of antihistamines are dryness, constipation, upset stomach, and feeling groggy the next day.

What is the meaning of the word withdrawal as used in this passage?

What is the best summary of this passage?

The following supporting detail describes which of the following: “people report sleepwalking, sleep-eating, and even sleep-driving”?

When does DNA copy in preparation for mitosis in an animal cell?

A recipe calls for 2 bags of chocolate chips to bake 36 cookies.  How many bags will be needed to make 144 cookies?

Which one of these changes would not increase the rate of photosynthesis of a green plant?

Which word from the following sentence is a possessive pronoun?

She said that her favorite presentation was ours.

In the reaction 2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O, which element is reduced?

Which of the following sentences is grammatically correct? 

A) Victor’s favorite Robert Frost poem is the road not taken.

B) Victor’s favorite Robert Frost poem is “The Road Not Taken”.

C) Victor’s favorite Robert Frost poem is The Road Not Taken.

D) Victor’s favorite Robert Frost poem is “the road not taken”.

Removing energy from a gas to create a liquid would be described as which physical change process?

Select the best word for the blank in the following sentence.

The quarterback was injured too _______ to play in the Superbowl.

If a DJ’s turntable spins at 10 revolutions/second and increases to 25 revolutions/second in 5 seconds, what is the turntable’s angular acceleration?

Select the meaning of the underlined word:

They questioned his sagacity because he was under the influence of alcohol.

What is the speed of a wave with a frequency of 80 Hertz and a wavelength of 2.4 meters?

Select the meaning of the underlined word:

The doctor chose to abdicate his original diagnosis after the new test results came in.

If a force of 12N to the east acts on a charge of -30 microcoulombs, what is the magnitude of the electric field that is generated?