DNA & Chromosomes
Where in eukaryotic cells is the DNA located?
Nucleus
In this phase, chromosomes are lined up in the middle of the cell.
Metaphase
How much of a cell's life is spent in Interphase?
90%
What type of cells uncontrollably divide?
Cancer Cells
What is the definition of biology?
The study of life!
What is the name for DNA when it is loosely coiled in the nucleus during most of the cell cycle?
Chromatin
In this phase, sister chromatids are separated.
Anaphase
What happens during G1 Phase?
Cell grows and does normal cell functions.
What is the purpose of cell cycle checkpoints?
To make sure the cell is ready to divide before moving on, and to prevent damaged DNA from being passed on.
What type of organism makes its own food using sunlight?
Producer or Autotroph
When DNA condenses in prophase, what structures does it form?
Chromosomes
In this phase, two nuclei are forming but the cytoplasm has not split yet.
Telophase
What happens during S Phase?
DNA is synthesized and replicated.
What is apoptosis?
Programmed cell death or self-destruction
What process do cells use to break down glucose to produce ATP?
Cellular Respriation
Where are sister chromatids connected?
Centromere
In this phase, chromatin condenses into chromosomes.
Prophase
List the stages in Interphase in the correct order.
G1, S, G2
Cancer cells often lose this control mechanism that normally stops cells from dividing when they touch neighboring cells.
Density-Dependent Inhibition
What are unspecialized cells that can develop into many different cell types?
Stem Cells
Why must DNA replicate before cell division?
So each new daughter cell can have its own copy of DNA
In this phase, a cell plate will form in a plant cell.
Cytokinesis
A cell has copied its DNA and begins checking if it is ready to divide. What stage is this cell in?
G2 Phase
They take over areas and use up all the available oxygen and nutrients.
A cell is surrounded in a very salty solution and shrinks. Why does this happen?
Osmosis causes the water to leave the cell.