Chap009
Chapter 09
Cell Communication
Multiple Choice Questions 1. The protein Sonic Hedgehog (SHH) plays a role in specifying the identity of digits (such as fingers and toes) in mammals. Several digits arise directly from cells that both express and respond to secreted SHH. What type of signaling would this be considered? A. Direct contact
B. Paracrine
C. Endocrine
D. Synaptic
E. Autocrine If a cell responds to the ligand that it secretes, this is considered autocrine signaling.
Blooms Level: 2. Understand
LO: 09.01.01 Discriminate between methods of signaling based on distance from source to reception.
Section: 09.01 Overview of Cell Communication
Topic: Cell Communication
2. One cell sends second messengers to another cell through gap junctions. What type of signaling would this be considered?
A. Direct contact
B. Paracrine
C. Endocrine
D. Synaptic
E. Autocrine Gap junctions require direct contact between cells, and thus this is an example of direct contact signaling.
Blooms Level: 1. Remember
LO: 09.01.01 Discriminate between methods of signaling based on distance from source to reception.
Section: 09.01 Overview of Cell Communication
Topic: Cell Communication 3. In synaptic signaling, neurotransmitters are released into a space that is referred to as a: A. chemical synapse.
B. neuron junction.
C. paracrine space.
D. gap junction.
E. plasmodesmata.
Blooms Level: 1. Remember
LO: 09.01.01 Discriminate between methods of signaling based on distance from source to reception.
Section: 09.01 Overview of Cell Communication
Topic: Cell Communication
4. In response to injury, cell fragments called platelets get activated to induce clotting. Activated platelets release factors that can in turn bind to specific membrane receptors on nearby cells. What type of signaling would this be considered?
A. Direct contact
B. Paracrine
C. Endocrine
D. Synaptic
E. Autocrine Since the factors are acting
Cell Communication
Multiple Choice Questions 1. The protein Sonic Hedgehog (SHH) plays a role in specifying the identity of digits (such as fingers and toes) in mammals. Several digits arise directly from cells that both express and respond to secreted SHH. What type of signaling would this be considered? A. Direct contact
B. Paracrine
C. Endocrine
D. Synaptic
E. Autocrine If a cell responds to the ligand that it secretes, this is considered autocrine signaling.
Blooms Level: 2. Understand
LO: 09.01.01 Discriminate between methods of signaling based on distance from source to reception.
Section: 09.01 Overview of Cell Communication
Topic: Cell Communication
2. One cell sends second messengers to another cell through gap junctions. What type of signaling would this be considered?
A. Direct contact
B. Paracrine
C. Endocrine
D. Synaptic
E. Autocrine Gap junctions require direct contact between cells, and thus this is an example of direct contact signaling.
Blooms Level: 1. Remember
LO: 09.01.01 Discriminate between methods of signaling based on distance from source to reception.
Section: 09.01 Overview of Cell Communication
Topic: Cell Communication 3. In synaptic signaling, neurotransmitters are released into a space that is referred to as a: A. chemical synapse.
B. neuron junction.
C. paracrine space.
D. gap junction.
E. plasmodesmata.
Blooms Level: 1. Remember
LO: 09.01.01 Discriminate between methods of signaling based on distance from source to reception.
Section: 09.01 Overview of Cell Communication
Topic: Cell Communication
4. In response to injury, cell fragments called platelets get activated to induce clotting. Activated platelets release factors that can in turn bind to specific membrane receptors on nearby cells. What type of signaling would this be considered?
A. Direct contact
B. Paracrine
C. Endocrine
D. Synaptic
E. Autocrine Since the factors are acting