Cellular Communication

Which of the following can activate a protein by transferring a phosphate group to it?

• cAMP

• G Protein

• protein kinase

• protein phosphatase

A cell converting a chemical signal into a cellular response is known as __.

• energetics

• transduction

• ligand response

• transformation

What type of transmembrane receptor is being shown?

• gated ion channel

• G-protein receptor

Which of the following represents a signaling molecule that acts long-distance?

• hormone

• saccharide

• second messengers

• neurotransmitter

Largests category of cell surface receptors, important in animal sensory systems

• GPCRs

• Ion Channels

• Cation Channels

• CPCRs

Located in the plasma membrane, important to the nervous system, receptors act as a gate

• GPCRs

• Ion Channels

• Cation Channels

• CPCRs

Phosphorylation cascades are often used for

• reception

• responses

• amplification

• termination

If ATP were unavailable, what would be the effect on this pathway?

• Protein kinase A would not be produced

• GDP would not bind to the transmembrane protein

• The hormone would not bind to the transmembrane protein

• The secondary messenger would not be produced

Tags

NGSS.HS-LS1-3

How do bacteria sense local population density?

• quorum sensing

• bacteria sensing

• signal sensing

• population sensing

Plant cells can exchange small soluble compounds with neighboring cells directly through junctions in the cell wall called -

• gap junctions

• thylakoids

• stomata

• plasmodesmata