Receptor

The video explains the role of cell surface receptors, which bind to specific signaling molecules or external stimuli to trigger responses. These receptors are crucial in various human body functions, such as sensory perception and immune response. Sensory receptors detect external signals like light and sound, while immune cell receptors respond to pathogens.

What is the primary function of cell surface receptors?

• To transport nutrients into the cell

• To store genetic information

• To bind to specific signaling molecules and trigger a response

• To produce energy for the cell

Which of the following is NOT a function of receptors in the human body?

• Triggering immune responses

• Storing calcium

• Receiving external signals

• Regulating blood pressure

Sensory receptors are responsible for detecting which types of external signals?

• Magnetic and gravitational

• Chemical and electrical

• Temperature and pressure

• Light and sound

What role do receptors on immune cells play?

• They help in digestion

• They trigger a response to pathogens

• They store fat

• They produce hormones

Which of the following best describes the function of receptors in the context of the immune system?

• They produce antibodies

• They detect changes in temperature

• They bind to pathogens and initiate an immune response

• They transport oxygen