Distance Communication
True/False
Signal receptors can be blocked in the body
What is...
True
Lignin is present in plants that are made of ______
What is...
wood
The extracellular matrix outside animal cells is composed mostly of (2 answers)
What is...
Collagen and Proteoglycans
Cadherins...
What is...
link different cells containing the same cadherin proteins
Chemical messengers secreted from cells in a multicellular organism that travel throughout the body and act on distant cells
What is...
Hormones
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.
The extracellular matrix
What is a...
fiber composite consisting of cross-linked filaments that provide tensile strength and a ground substance that resists compression.
Tight Junctions
What is...
A watertight seal
Signal receptors for hydrophilic and lipid-soluble hormones both have one thing in common
What is...
They change shape upon hormone binding
Signaling mechanism unicellular organisms use to monitor population density
What is...
Quorum sensing
Integrins...
What is...
link the actin cytoskeleton to laminin and other extracellular matrix proteins
Gap Junctions
What is...
A channel for ions to pass through
Signaling pathway crosstalk
What is...
when one signaling pathway can inhibit and/or stimulate several other signaling pathways
Quorum sensing is similar to what in a multicelluar organism...
What is...
Hormones
3 functions of the ECM...
What is...
1. Cell shape
2. Attachment
3.Defense
Desmosomes
What is...
anchors between adjacent cells
(connect at cytoskeleton)
The four steps in signal transduction
What is...
Reception, processing, response, and deactivation
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)
Breakdown of the ECM can lead to...
metastasis of cancer cells
Which of the cell junctions are capable of allowing for communication between cells
What is...
Gap Junctions