Homeostasis

• Define homeostasis?

  The ability to maintain stable internal conditions even with changes to the external environment.
• What does chemoreceptors detect?

  Detect chemicals, examples of stimuli like smell, taste, or oxygen levels in the blood.
• What do mechanoreceptors detect?

  Detect physical stimuli, examples of stimuli like pressure, touch, or sound.
• What do photoreceptors detect?

  Stimuli such as light.
• What do thermoreceptors detect.

  Detects heat for example temperature on skin or the bodies internal temperatures.
• What do nociceptors detect.

  Detect pain.
• What are the five sensory receptors?

  Mechanoreceptors, thermoreceptors, nociceptors, photoreceptors, chemoreceptors.
• What are the two kinds of effectors?

  Muscles or glands.
• How are muscles effectors?

  Contract to cause movement.
• What does a gland do as an effector?

  Glands release secretions.
• What are effectors?

  Respond to the sensory receptors to carry out a response.
• Define metabolism?

  All chemical reactions involved in sustaining life. Either catabolic or anabolic.
• Define catabolic?

  Breaks down a larger molecule into a smaller molecule and energy.
• Define anabolic?

  Building smaller molecules and energy into a larger molecule.
• Why do chances in metabolic activity affect optimum conditions?

  If internal conditions fall outside of tolerance limits for optimal catalytic enzyme activity, the body must respond to maintain homeostasis.