Celluar Metabolism And Reproduction Flashcards
The complete chemical process of chemical change in a cell is called
Metabolism
Breaking down molecules with the release of energy is
Catabolism
Using energy to construct molecular material is
Anabolism
What is the first step in breaking down glucose?
Glycolysis
During the latter part of prolonged exercise, human muscle starts to break down glucose by the process of
Anaerobic respiration
The final product of fermentation is
Alchohol
During anaerobic production of ATP in muscle, which acid is produced?
Lactic acid
The actual separation of the cell into two daughter cells is called
Cytokinesis
The two purines are composed of
Adenine and guanine
The two pyrimidines are composed of?
Thymine and cytosine
The longest stage of the cell cycle is
Interphase
What is characteristic of prophase
- aster
- kinetochore
- centromere
- spindle fibre
- chromosomes start to condense
Which is the shortest phase in mitosis?
Anaphase
The final stage of mitosis is ?
Telophase
Who discovered DNA?
Friedrich Miescher
Describe prophase
- duplicated chronometer shorten, thicken and become visible as two sister chormatids held together at the middle area call the centromere
- the 2 kineotchores are found at the centromere
- centrioles move to the opposite poles of the cell and from spindle and asters
- the microtubules attach the kinetochore to the spindle
Describe metaphase
- sister chromatids align themselves at the equator
- the centromeres divide
Describe Anaphase
- each divided centromere pulls a sister chormatid to an opposite pole.
- cytokinesis begins
Describe telophase
The chromosomes begin to uncoil and decondense
- spindle apparatus breaks down
- a new nuclear membrane forms round the cluster of hormones at each pole
- cytokinesis is nearly complete.
What phase to cancer cells not go into?
Interphase- the cell never rests it just continually divided
