Cards (46)

  • What is the structural composition of receptors?
    Proteins or glycoproteins
  • Receptors can only be located on cell membranes.
    False
  • Internal receptors are often found in the cytoplasm of cells.
  • Match the receptor type with its location and what it senses:
    Baroreceptors ↔️ Blood vessels ||| Blood pressure
    Chemoreceptors ↔️ Brain, blood vessels ||| Blood glucose, CO2, pH
    Thermoreceptors ↔️ Hypothalamus ||| Body temperature
  • Which internal receptor monitors body temperature?
    Thermoreceptors
  • Arrange the steps involved in the response triggered by thermoreceptors to maintain body temperature:
    1️⃣ Thermoreceptors detect a drop in body temperature
    2️⃣ The hypothalamus receives the signal
    3️⃣ Shivering is triggered to generate heat
  • Baroreceptors sense changes in blood pressure.

    True
  • Chemoreceptors are located in the blood vessels and brain
  • What stimuli do mechanoreceptors detect?
    Touch, pressure, movement
  • Match the external receptor type with its detected stimuli:
    Photoreceptors ↔️ Light
    Mechanoreceptors ↔️ Touch, pressure, movement
    Chemoreceptors ↔️ Chemicals in the environment
  • Internal receptors maintain homeostasis by detecting internal deviations
  • What are the two main types of receptors based on their location and the stimuli they detect?
    Internal and external
  • Internal receptors are often located in the cytoplasm of cells.cytoplasm
  • Internal receptors allow organisms to respond to changes in their external environment.
    False
  • What is a key difference in the location of internal and external receptors?
    Internal: cytoplasm; External: membrane
  • Internal receptors detect changes in the internal environment of the body.internal
  • Internal receptors help maintain homeostasis by detecting deviations and initiating appropriate responses.

    True
  • Chemoreceptors detect changes in blood glucose, CO2 levels, and pH.pH
  • Match the external receptor type with its detected stimuli and example:
    Photoreceptors ↔️ Light; Rods and cones in the retina
    Mechanoreceptors ↔️ Touch, pressure, movement; Pacinian corpuscles
    Chemoreceptors ↔️ Chemicals in the environment; Taste buds
  • How do receptors detect stimuli and initiate a cellular response?
    Specific binding and conformational change
  • A common signal transduction pathway involves phosphorylation, which activates proteins by adding phosphate groups.phosphorylation
  • What is the role of receptors in maintaining homeostasis?
    Detecting changes and initiating responses
  • Receptors help maintain a stable internal environment by detecting deviations and initiating appropriate physiological adjustments.

    True
  • Where are internal receptors typically located?
    Within the body
  • Internal receptors respond to external environmental changes.
    False
  • What type of internal receptor detects changes in blood pressure?
    Baroreceptors
  • Chemoreceptors detect changes in blood glucose, CO2 levels, and pH.
  • Chemoreceptors detect changes in blood glucose, CO2 levels, and pH
  • Thermoreceptors are found in the hypothalamus
  • Match the receptor type with its location and sensed stimuli:
    Baroreceptors ↔️ Blood vessels, blood pressure
    Chemoreceptors ↔️ Blood vessels, brain, blood glucose
    Thermoreceptors ↔️ Hypothalamus, body temperature
  • Where are baroreceptors found in the body?
    Blood vessels
  • Which receptors monitor body temperature?
    Thermoreceptors
  • Thermoreceptors trigger sweating or shivering in response to temperature changes.

    True
  • Photoreceptors detect light using rods and cones
  • How do receptors detect stimuli at the molecular level?
    Binding specific molecules
  • Steps of the phosphorylation signal transduction pathway:
    1️⃣ Kinases add phosphate groups
    2️⃣ Proteins are activated
    3️⃣ Cellular response occurs
  • Phosphorylation is a common signal transduction pathway that activates proteins.

    True
  • Receptors are located on cell membranes or within the cytoplasm
  • What stimuli do internal receptors detect?
    Internal changes
  • Match the internal receptor type with its location and response triggered:
    Baroreceptors ↔️ Blood vessels; Vasoconstriction/vasodilation
    Chemoreceptors ↔️ Blood vessels, brain; Changes in breathing rate, insulin release
    Thermoreceptors ↔️ Hypothalamus; Sweating, shivering