Which of the following signaling types is used to transmit ligands to their target cells over long dista
the circulatory system as a transport medium?
1. Autocrine signaling
2. Endocrine signaling
3. Direct cell-to-cell signaling
4. Paracrine signaling
5. Synaptic signaling
Endocrine signaling.
Explain why a steroid hormone would require a carrier protein to transport it through the bloodstream
Steroid hormones are hydrophobic. They would require a carrier protein to carry it through the blood because
considered hydrophilic.
Each of the following is true regarding cellular receptors except:
1. Receptors in each family are classified by their location in the body.
,2. Most receptors are located on the outside of a cell, anchored in the plasma membrane.
3. Cell surface receptors contain an extracellular region, intracellular region, and a hydrophobic regio
plasma membrane.
4. Intracellular receptors are located in the cell's cytoplasm.
Receptors in each family are classified by their location in the body.
List TWO specific examples of cellular ligands.
Hormones, peptides, sugars, and other hydrophobic molecules.
So calcium and female sex hormones would classify as ligands.
, Fill in the Blank:
Transduction is the chain of ___________ and intracellular ___________ that relay signals inside of a
1. Molecules
2. Enzymes
Which of the following statements is true of GPCRs?
1. They thread through the plasma membrane forming loops.
2. They are transmembrane hormone receptors.
3. A modified loop receives ligands on their intracellular side.
4. All of the above.
They thread through the plasma membrane forming loops.
Fill in the Blank:
the circulatory system as a transport medium?
1. Autocrine signaling
2. Endocrine signaling
3. Direct cell-to-cell signaling
4. Paracrine signaling
5. Synaptic signaling
Endocrine signaling.
Explain why a steroid hormone would require a carrier protein to transport it through the bloodstream
Steroid hormones are hydrophobic. They would require a carrier protein to carry it through the blood because
considered hydrophilic.
Each of the following is true regarding cellular receptors except:
1. Receptors in each family are classified by their location in the body.
,2. Most receptors are located on the outside of a cell, anchored in the plasma membrane.
3. Cell surface receptors contain an extracellular region, intracellular region, and a hydrophobic regio
plasma membrane.
4. Intracellular receptors are located in the cell's cytoplasm.
Receptors in each family are classified by their location in the body.
List TWO specific examples of cellular ligands.
Hormones, peptides, sugars, and other hydrophobic molecules.
So calcium and female sex hormones would classify as ligands.
, Fill in the Blank:
Transduction is the chain of ___________ and intracellular ___________ that relay signals inside of a
1. Molecules
2. Enzymes
Which of the following statements is true of GPCRs?
1. They thread through the plasma membrane forming loops.
2. They are transmembrane hormone receptors.
3. A modified loop receives ligands on their intracellular side.
4. All of the above.
They thread through the plasma membrane forming loops.
Fill in the Blank:
