Vocabulary and Comprehension Quiz

The new policy aims to alleviate the financial burden on low-income families.
The word "alleviate" is closest in meaning to...

• Increase

• Relieve

• Intensify

• Maintain

• Complicate

The scientist made a crucial discovery that changed the course of medical research.

The word "crucial" is closest in meaning to....

• Insignificant

• Unreliable

• Essential

• Temporary

• Complex

The manager scrutinized the report carefully before approving the project.

The word "scrutinized" is closest in meaning to...

• Ignored

• Examined

• Modified

• Rejected

• Simplified

Despite his erratic behavior, he was considered a genius in his field.

The word "erratic" is closest in meaning to....

• Predictable

• Consistent

• Unstable

• Careful

• Ordinary

Which of the following sentences best restates the idea in this sentence?

"Neurons transmit electrical and chemical signals throughout the body, allowing organisms to respond to stimuli."

• Neurons send messages to different parts of the body through a network of nerves.

• The body communicates through neurons by using both electrical and chemical signals.

• Neurons are responsible for processing sensory input and generating thoughts.

• Electrical signals from neurons regulate all bodily functions and movements.

• The nervous system works independently of neurons to control the body's responses.

Which of the following is the best paraphrase of the sentence below?

"The synapse is a small gap between neurons where neurotransmitters facilitate signal transmission."

• The synapse is a large space where neurons exchange signals using neurotransmitters.

• Neurons communicate by sending electrical impulses through a direct physical connection.

• Neurotransmitters help neurons pass signals across a small gap known as the synapse.

• The synapse blocks the transmission of signals between neurons.

• Neurotransmitters disrupt communication between neurons by creating a gap.

Which of the following is the best summary of the paragraph below?

"The human nervous system is divided into the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS consists of the brain and spinal cord, which process and interpret sensory information. The PNS includes all other nerves in the body, which relay information between the CNS and other organs."

• The nervous system is made up of nerves that process and interpret information.

• The central and peripheral nervous systems work together to transmit information throughout the body.

• The CNS is responsible for movement, while the PNS controls thoughts and emotions.

• The brain and spinal cord are the main components of the nervous system.

• The PNS is more important than the CNS because it connects to all body parts.

Which sentence best restates the following?

"Dendrites receive incoming signals from other neurons and transmit them to the cell body for processing."

• Neurons send electrical signals from the cell body to the dendrites.

• Dendrites capture signals from neighboring neurons and deliver them to the cell body.

• The cell body processes signals before sending them to dendrites.

• Neurons receive and send signals using electrical impulses in the dendrites.

• Dendrites and the cell body work independently to process signals.

Which of the following sentences paraphrases the original sentence correctly?

"Myelin sheaths, which cover axons, help speed up the transmission of electrical impulses in neurons."

• Myelin sheaths surround axons and make electrical impulses travel faster in neurons.

• Neurons travel quickly along the axons, which are protected by myelin sheaths.

• Axons cover myelin sheaths to ensure signals are properly transmitted.

• Electrical signals pass through the myelin sheaths instead of axons for faster transmission.

• Myelin sheaths prevent electrical impulses from reaching axons too quickly.

Which of the following best summarizes the paragraph below?

"Neurons communicate with each other through a combination of electrical and chemical signals. Electrical impulses travel along the axon until they reach the synapse, where neurotransmitters are released to carry the signal to the next neuron. This process enables fast and efficient transmission of information throughout the nervous system."

• Neurons use both electrical and chemical signals to send messages quickly.

• The nervous system depends entirely on chemical signals for communication.

• Neurotransmitters generate electrical impulses to keep neurons connected.

• Neurons interact only through direct electrical contact, without the use of chemicals.

• The nervous system transmits information through slow and inefficient processes.