Distance Communication
Plants and unicellular organisms
Extracellular Matrix
Cell Attachment
100

True/False

Signal receptors can be blocked in the body

What is...

True

100

Lignin is present in plants that are made of ______

What is...

wood

100

The extracellular matrix outside animal cells is composed mostly of (2 answers)

What is...

Collagen and Proteoglycans

100

Cadherins...

What is...

link different cells containing the same cadherin proteins

200

Chemical messengers secreted from cells in a multicellular organism that travel throughout the body and act on distant cells

What is...

Hormones

200

Turgor pressure

What is...

when the cell contents push against the plant cell wall due to the osmosis of water into the vacuole. Allows plants to stand up staight.

200

The extracellular matrix

What is a...

fiber composite consisting of cross-linked filaments that provide tensile strength and a ground substance that resists compression.

200

Tight Junctions 

What is...

A watertight seal

300

Signal receptors for hydrophilic and lipid-soluble hormones both have one thing in common

What is...

They change shape upon hormone binding

300

Signaling mechanism unicellular organisms use to monitor population density

What is...

Quorum sensing

300

Integrins...

What is...

link the actin cytoskeleton to laminin and other extracellular matrix proteins

300

Gap Junctions

What is...

A channel for ions to pass through

400

Signaling pathway crosstalk

What is...

when one signaling pathway can inhibit and/or stimulate several other signaling pathways

400

Quorum sensing is similar to what in a multicelluar organism...

What is...

Hormones

400

3 functions of the ECM...

What is...

1. Cell shape

2. Attachment

3.Defense

400

Desmosomes

What is...

anchors between adjacent cells

(connect at cytoskeleton)

500

The four steps in signal transduction

What is...

Reception, processing, response, and deactivation

500

How do plants grow?

What is...

Expansins

(Break hydrogen bonds that cross-link the microfibrils in the wall, allowing the microfibrils to slide past one another)

500

Breakdown of the ECM can lead to...

What is...

metastasis of cancer cells

500

Which of the cell junctions are capable of allowing for communication between cells

What is...

Gap Junctions