BIOL-1230 Chapter 9 Quiz

A community of bacteria attached to a solid surface is a

• clone

• quorum

• biofilm

• communication population

• colony

Cells in multicellular organisms that respond to a chemical signal from other cells in the same organism are called

• transmitter cells

• signaling cells

• responders

• secretory cells

• target cells

The process in cells of converting an extracellular signal into an intracellular signal to which a response occurs is known as

• optimization

• transduction

• internal regulation

• chemical transposition

• chemical signal reception

The process whereby a signaling molecule diffuses through interstitial fluid and affects nearby cells is

• paracrine regulation

• cellular reception

• interstitial reception

• interstitial modification

• endocrine facilitation

The signaling chemicals transferred across the gap between neurons are called

• neuroreceptos

• synaptic transmitters

• neurotransmitters

• neuronal enhancers

• neuron communicators

Endocrine glands

• have no ducts

• secrete hormones

• communicate directly with neurons

• secrete chemical messengers into interstitial fluid

• secrete hormones into capillaries

Tags

NGSS.HS-LS1-3

Proteins and glycoproteins that bind with ligands are called

• enzymes

• messengers

• signaling molecules

• bonding elements

• receptors

Receptor down-regulation may involve

• deconstruction of receptors by lysosomes

• decreased numbers of receptors

• regulation of blood glucose levels

• increased intake of insulin by cells

• degradation of receptors

Tags

NGSS.HS-LS1-3

Receptor up-regulation occurs in response to

• low hormone concentrations

• high hormone concentrations

• receptor down-regulation

• increase in protein membrane complexes

• integration

Tags

NGSS.HS-LS1-3

Receptors on the cell surface that convert chemical signals into electrical signals are called

• G protein-linked receptors

• ion channel-linked receptors

• enzyme-linked receptors

• protein complex receptors

• ligand-gated channels