BSC2086 Ch. 5 Review| Questions and Answers
2024
1. In chemical communication between cells, a ________ cell secretes a chemical
messenger that binds to ________ on the ________ cell ** Answ**
secretory : receptors : target
2. Direct communication between cells in contact with one another is accomplished
through ________. ** Answ** gap junctions
3. Which type of chemical messenger, when released, binds to receptors on the cell
that released the chemical messenger? ** Answ** autocrine
4. Which type of chemical messenger is released into the bloodstream by an
endocrine gland where it can affect target cells throughout the body? ** Answ**
hormone
5. Which type of chemical messenger is released from the axon terminal of a
neuron and directly communicates with other cells? ** Answ**
neurotransmitter
6. Communication across a synapse is initiated by the release of a neurotransmitter
from the ________ region of the neuron ** Answ** axon terminal
7. Vasopressin (antidiuretic hormone), which is released from the posterior pituitary,
is an example of this type of chemical messenger. ** Answ** neurohormone
8. Which of the following classes of chemical messengers moves to the target cell
by diffusion? ** Answ** both paracrine and neurotransmitter
9. Which of the following classes of chemical messengers travels in the
bloodstream to the target cell? ** Answ** hormone only
10. Which of the following chemical messengers is lipophilic? ** Answ**
prostaglandin
11. Which of the following chemical messengers is lipophilic and is therefore able to
cross the cell membrane? ** Answ** eicosanoids
For assistance with assignments contact
2024
1. In chemical communication between cells, a ________ cell secretes a chemical
messenger that binds to ________ on the ________ cell ** Answ**
secretory : receptors : target
2. Direct communication between cells in contact with one another is accomplished
through ________. ** Answ** gap junctions
3. Which type of chemical messenger, when released, binds to receptors on the cell
that released the chemical messenger? ** Answ** autocrine
4. Which type of chemical messenger is released into the bloodstream by an
endocrine gland where it can affect target cells throughout the body? ** Answ**
hormone
5. Which type of chemical messenger is released from the axon terminal of a
neuron and directly communicates with other cells? ** Answ**
neurotransmitter
6. Communication across a synapse is initiated by the release of a neurotransmitter
from the ________ region of the neuron ** Answ** axon terminal
7. Vasopressin (antidiuretic hormone), which is released from the posterior pituitary,
is an example of this type of chemical messenger. ** Answ** neurohormone
8. Which of the following classes of chemical messengers moves to the target cell
by diffusion? ** Answ** both paracrine and neurotransmitter
9. Which of the following classes of chemical messengers travels in the
bloodstream to the target cell? ** Answ** hormone only
10. Which of the following chemical messengers is lipophilic? ** Answ**
prostaglandin
11. Which of the following chemical messengers is lipophilic and is therefore able to
cross the cell membrane? ** Answ** eicosanoids
For assistance with assignments contact
