Sensory Receptors

Which of the following is NOT a type of sensory input?

• Technological

• Mechanical

• Electromagnetic

• Chemical

Answer explanation

Technological is not a type of sensory input. The other options—Mechanical, Electromagnetic, and Chemical—are all recognized forms of sensory input that organisms use to perceive their environment.

Tags

NGSS.MS-LS1-8

The sense of taste detects ________________ stimuli.

• chemical

• mechanical

• electromagnetic

• thermal

Answer explanation

The sense of taste detects chemical stimuli, as it responds to substances dissolved in saliva. This is why the correct answer is 'chemical', distinguishing it from other types of stimuli.

The sense of smell detects ________________ stimuli.

• chemical

• thermal

• mechanical

• electromagnetic

Answer explanation

The sense of smell detects chemical stimuli, as it relies on the interaction of odor molecules with receptors in the nasal cavity. Other options like thermal, mechanical, and electromagnetic do not pertain to the olfactory system.

The sense of hearing detects ________________ stimuli.

• electromagnetic

• thermal

• mechanical

• chemical

Answer explanation

The sense of hearing detects mechanical stimuli, which are sound waves that cause vibrations in the air. These vibrations are converted into signals by the ear, allowing us to perceive sound.

The sense of touch detects ________________ stimuli.

• electromagnetic

• chemical

• mechanical

• pH

Answer explanation

The sense of touch primarily detects mechanical stimuli, such as pressure, vibration, and texture. This makes 'mechanical' the correct choice, as it encompasses the physical interactions that our skin senses.

Tags

NGSS.MS-LS1-8

The sense of sight detects ________________ stimuli.

• electromagnetic

• chemical

• mechanical

• temperature

Answer explanation

The sense of sight detects electromagnetic stimuli, specifically light waves. Other options like chemical, mechanical, and temperature stimuli are detected by different senses, such as taste, touch, and temperature receptors.

Tags

NGSS.MS-LS1-8

Which properties of nerve cells are most important for their ability to carry out their task in helping animals deal with sensory input?

• Nerve cells are sometimes packed closely together and sometimes widely spaced.

• Nerve cells can carry signals and connect all parts of the body to the brain.

• Nerve cells can be damaged by a serious injury or by disease.

• Nerve cells grow and reproduce like other cells of the body.

Answer explanation

Nerve cells' ability to carry signals and connect all parts of the body to the brain is crucial for processing sensory input, enabling communication between sensory organs and the central nervous system.

Tags

NGSS.MS-LS1-3

What is the main function of the nervous system?

• Responsible for control of the body and communication among body parts

• Responsible for production of offspring

• Helps to rid the body of toxins, water, and other unwanted materials and transports lymph, a fluid containing infection-fighting white blood cells, throughout the body

• Provides oxygen to the body's cells, while moving carbon dioxide

Answer explanation

The main function of the nervous system is to control the body and facilitate communication among its parts, coordinating actions and responses to internal and external stimuli.

“They are cells specialized in picking up stimulus, whether they are internal or external, and send them to the brain through the nervous system”. This is the definition of...

• Stimulus

• Receptor

• Sense

• Taste

Answer explanation

The definition describes receptors, which are specialized cells that detect stimuli and transmit signals to the brain via the nervous system. Other options like 'stimulus' and 'sense' do not fit this specific role.

Tags

NGSS.MS-LS1-8

A receptor that detects light and darkness it's called...

• Photoreceptor

• Mechanoreceptor

• Chemoreceptor

• brightnessreceptor

Answer explanation

A receptor that detects light and darkness is called a photoreceptor. Photoreceptors are specialized cells in the eyes that respond to light, making them essential for vision.

Tags

NGSS.MS-LS1-8