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Cell Cycle and DNA Replication.
Vocabulary Terms.
31
Biology
9th Grade
11/08/2016

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Cards

Term


Cell division

Definition


The process by which a cell divideds into 2 daughter cells. 

Term


Asexual Reproduction

Definition


The production of geneticly identical offspring form a single parent. 

Term


Sexual Reproduction

Definition


The fusion of two seperate parent cells. 

Term

 


Chromosomes

Definition

 

Genetic information bundeled into packages of DNA

Term

 

Chromatin

Definition


The material of which the chromosomes of organisms are composed. It consists of protein, RNA, and DNA.

Term

 

 

Cell Cycle

Definition

 

during this cycle the cell grows, prepares for division and divides into 2 daughter cells

Term


Interphase

Definition

Interphase consists of 3 stages: 

  • G1 phase-cell growth
  • S phase-DNA replication
  • G2 phase- cell prepares for division

The cell spends most of its life in Interphase. 

Term

 


Mitosis

Definition

 

The first stage of cell division.  It involves division of the cell nucleous

Term

 


M-phase

Definition

 

Follows interphase.  This phase produces 2 identical daughter  cells. 

Term

 


Cytokinesis

Definition
The second stage of cell division. It involves the division of the cell cytoplasm. 
Term


G1(Gap1)-phase

Definition


Most of the cell growth happens in this phase. Protiens and organels are also synthesised in this phase. 

Term


G(Gap2)-phase

Definition
After S-phase, many of the organells and molecules needed for cell division are produced.
Term

 


S-phase

Definition


Synthesis phase.  chromosomes are replicated and new DNA is formed.  The cell now contains 2 times as much DNA as it did in the begining.  

Term

 


Prophase

Definition
First phase of mitosis where the genetic information inside the nucleous condenses and the duplicated chromosomes becomes visible.  Outside the nucleous the spindle begins to form. 
Term

 

Centromere

Definition


Area where duplicated DNA strands attach

Term



Chromatid

Definition



one of two identical parts of a duplicated chromosome

Term


Centriole

Definition


Small structure where the spindal fibers form. 

Term

 


Metaphase

Definition

Phase of mitosis where the chromosomes line up across the midddle of the cell. 

Term


anaphase

Definition
Phase of mitosis where chromosomes move to opposite ends of the cell. 
Term

 


telophase

Definition
final phase of mitosis where condensed chromosomes begin to spread out into chromatins
Term

 


Cytokinesis

Definition


completes the cell division process, it splits one cell into 2

Term

 


cyclin

Definition

a protein that regulates the cell cycle

Term
Growth factors
Definition

 

stimulate the growth and division of the cell

Term


apoptosis

Definition

process of programed cell death. 

Term

 


cancer

Definition

 

a disorder where cells lose thier ability to control growth

Term

 


Tumor

Definition

a mass of cancer cells. 

Term

 

phase

Definition

 

a distinct period or stage in a process

Term


particular

Definition

 

of or relating to a single or specific person, thing, group, class,occasion

Term

 

ensure

Definition

to make sure or certain

Term


detect

Definition


to discover the existence of

Term


criteria

Definition


a standard of judgment or criticism

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