PORTAGE BIOD 101 MODULE 5 EXAM [ LATEST 2025] , (
QUESTIONS WITH CORRECT VERIFIED ANSWERS) –
VERIFIED BY EXPERTS, GRADED A+, SUCCESS
GUARANTEED
Which of the following signaling types is used to transmit ligands to their target cells over long
distances, using 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 - ANSWER Endocrine signaling.
Explain why a steroid hormone would require a carrier protein to transport it through the
bloodstream. - ANSWER Steroid hormones are hydrophobic. They would require a carrier
protein to carry it through the blood because it is 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
region in the plasma membrane.
4. Intracellular receptors are located in the cell's cytoplasm. - ANSWER Receptors in each family
are classified by their location in the body.
List TWO specific examples of cellular ligands. - ANSWER 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 cell. - ANSWER 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.
QUESTIONS WITH CORRECT VERIFIED ANSWERS) –
VERIFIED BY EXPERTS, GRADED A+, SUCCESS
GUARANTEED
Which of the following signaling types is used to transmit ligands to their target cells over long
distances, using 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 - ANSWER Endocrine signaling.
Explain why a steroid hormone would require a carrier protein to transport it through the
bloodstream. - ANSWER Steroid hormones are hydrophobic. They would require a carrier
protein to carry it through the blood because it is 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
region in the plasma membrane.
4. Intracellular receptors are located in the cell's cytoplasm. - ANSWER Receptors in each family
are classified by their location in the body.
List TWO specific examples of cellular ligands. - ANSWER 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 cell. - ANSWER 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.
