Biology Biology Practice Problems Solutions Library

Cell Signaling Solutions Library

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18 solutions

Cell Signaling

Q. What are the three types of cell-cell signaling, and how are they different?

Solved • May 22, 2018

Cell Signaling

Q. Briefly explain the difference between necrosis and apoptosis. Why is the latter part of the cell's program?

Solved • May 7, 2018

Cell Signaling

Q. How does the space between our fingers arise?  a. The cells die by necrosis b. Mitosis of the cells is blocked c. The cells die by apoptosis d....

Solved • Jul 31, 2017

Cell Signaling

Q. You are studying the effect of a secreted signal molecule on the activity of a cytoplasmic enzyme. Prior studies have shown the signal molecule is ...

Solved • Jul 20, 2017

Cell Signaling

Q. The protein Sonic Hedgehog (SHH) plays a role in specifying the identity of digits (such as fingers, etc.) in mammals. Several digits arise directl...

Solved • Jul 20, 2017

Cell Signaling

Q. Short-lived signals, causing local effects.a. Paracrine signalingb. Endocrine signalingc. Synaptic signaling

Solved • Jul 20, 2017

Cell Signaling

Q. Short lived singals, used by nerve cells.a. Paracrine signalingb. Direct contactc. Endocrine signalingd. Synaptic signaling

Solved • Jul 20, 2017

Cell Signaling

Q. Long-lived; affects cells very distant from the releasing cell.a. paracrine signalingb. direct contactc. endocrine signalingd. synaptic signaling

Solved • Jul 20, 2017

Cell Signaling

Q. Synaptic signaling requires which of the following to be released into the synaptic gap?a. hormonesb. internal receptorsc. genesd. neurotransmitter...

Solved • Jul 20, 2017

Cell Signaling

Q. Communication between cells can occur by all of the following basic mechanisms excepta. direct contact.b. intracellular signaling.c. paracrine sign...

Solved • Jul 20, 2017

Cell Signaling

Q. Hormones are an example of intercellular communication known as _____________ signaling.a. neuralb. endocrinec. paracrined. autocrine

Solved • Jul 19, 2017

Cell Signaling

Q. Endocrine signaling involves the release of __________.a. neurotransmittersb. hormonesc. peptidesd. cells

Solved • Jul 19, 2017

Cell Signaling

Q. ___________ among cells is a hallmark of multicellular organisms.a. Communicationb. Transportc. Linkaged. Identity

Solved • Jul 19, 2017

Cell Signaling

Q. Synaptic signaling requiresa.  hormonesb.  internal receptorsc.  genesd.  neurotransmitterse.   lipids

Solved • Jul 19, 2017

Cell Signaling

Q. Communication between cells can occur by all of the following basic mechanisms excepta.  direct contactb.  paracrine signalingc.  endocrine signali...

Solved • Jul 19, 2017

Cell Signaling

Q. The cells of multicellular organisms use a variety of molecules as signals which area.  amino acids and proteinsb.  nucleotides and lipidsc.  disso...

Solved • Jul 19, 2017

Cell Signaling

Q. Specific protein receptors are present for all of the following excepta.  signal amplificationb.  signal transductionc.  intracellular receptors bi...

Solved • Jul 19, 2017

Cell Signaling

Q. The space into which neurotransmitters are released is called a chemicala.  synapseb.  junctionc.  channeld.  desmosomee.   vesicle

Solved • Jul 19, 2017