Cell Cycle
The cell spends 90% of their time in this part of the cell cycle
Interphase
In this phase of mitosis, the chromosomes line up along the equator of the cell
Metaphase
______ is the name of a signal molecule that binds to receptors
Ligand
This is the first stage of signal transduction
This term describes maintaining a consistent internal environment
Homeostasis
This is the phase of the cell cycle where division occurs
M phase
In this phase of mitosis, chromosomes are split at the centromeres
Anaphase
A cell sending a signal to itself is this type of signal
Autocrine
The opening of ligand-gated ion channels is an example of the third stage of cell signaling known as _______
Response
Human thermoregulation is a type of ______ feedback
Negative
This is the part of Interphase where new DNA is synthesized
S phase
The nuclear membrane dissolves in this phase of mitosis
Prophase
This type of signaling is done through direct contact
Juxtacrine
Hydrophilic ligands bond to receptors located _______
On the surface of the cell
If an apple on a tree become ripe, it releases ethylene, which triggers more apples to ripen. This is an example of ______ feedback
Positive
This is the term used to describe programmed cell death
Apoptosis
A researcher is studying cell division in mouse tissue. When viewed under a microscope, the cell has two distinct nuclear membranes. The researcher concludes the cell is which phase of mitosis?
Telophase
This type of signal is sent over a short distance
Paracrine
Phosphorylation cascade is an example of a _______ pathway
Transduction
If your blood glucose level gets too high, insulin is released by the pancreas to absorb glucose. This is an example of _____ feedback
Negative
Neurons do not divide because they are in this phase of the cell cycle
G0
In cytokinesis, the cytoplasm divides, creating a ________ that begins to separate the two cells.
Cleavage furrow
These types of signals are sent through the bloodstream to other parts of the body
Endocrine
The enzyme adenylyl cyclase produces the molecule cyclic AMP in order to pass signals along the transduction pathway. cAMP is an example of a ________
Secondary messenger
What types of molecules are in jeopardy if your body is unable to maintain consistent levels of pH or temperature?
Enzymes