PRINCIPLES OF ANATOMY AND PHYSIOLOGY 16TH
EDITION COMPLETE CHAPTERS 1-29 WITH ANSWERS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
In which phase of mitosis do the chromosomes line up in the middle of the dividing cell?
Metaphase.
What is the role of the spindle fibers during mitosis?
To connect to the centromeres and pull apart the chromatids.
What are the two main stages of cell division?
Mitosis and Cytokinesis.
What happens to the chromatids during telophase?
Chromatids start to disappear and turn into chromatin.
What reforms during telophase?
Nuclear membrane.
What is the difference between cytokinesis in plants and in animals?
In animal cells, a cleavage furrow forms; in plant cells, a cell plate forms.
What regulates the cell cycle?
A chemical control system made up of proteins.
What type of regulation comes from outside the cell?
External regulation.
What type of regulation comes from the cell's own nucleus?
Internal regulation.
, What does a checkpoint do in the cell cycle?
Regulates stop and go signals.
What is programmed cell death?
Apoptosis.
What is cancer?
A disorder in which some cells have lost the ability to control their growth and division.
What are tumors?
Clumps of cells that divide uncontrollably
What happens when a cell gets too large?
It cannot move nutrients and wastes efficiently, so it must divide.
What happens to the volume related to the surface area when a cell becomes larger?
Volume increases faster than surface area.
What does a cell do to prevent it from growing too large?
It divides.
What must a cell do before it divides?
It must copy its DNA.
What is the relationship between cell size and SA:V ratio?
The smaller the cell, the higher the SA:V ratio.
Is a bigger cell or smaller cell more efficient?
Smaller cell.
What is asexual reproduction?
EDITION COMPLETE CHAPTERS 1-29 WITH ANSWERS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
In which phase of mitosis do the chromosomes line up in the middle of the dividing cell?
Metaphase.
What is the role of the spindle fibers during mitosis?
To connect to the centromeres and pull apart the chromatids.
What are the two main stages of cell division?
Mitosis and Cytokinesis.
What happens to the chromatids during telophase?
Chromatids start to disappear and turn into chromatin.
What reforms during telophase?
Nuclear membrane.
What is the difference between cytokinesis in plants and in animals?
In animal cells, a cleavage furrow forms; in plant cells, a cell plate forms.
What regulates the cell cycle?
A chemical control system made up of proteins.
What type of regulation comes from outside the cell?
External regulation.
What type of regulation comes from the cell's own nucleus?
Internal regulation.
, What does a checkpoint do in the cell cycle?
Regulates stop and go signals.
What is programmed cell death?
Apoptosis.
What is cancer?
A disorder in which some cells have lost the ability to control their growth and division.
What are tumors?
Clumps of cells that divide uncontrollably
What happens when a cell gets too large?
It cannot move nutrients and wastes efficiently, so it must divide.
What happens to the volume related to the surface area when a cell becomes larger?
Volume increases faster than surface area.
What does a cell do to prevent it from growing too large?
It divides.
What must a cell do before it divides?
It must copy its DNA.
What is the relationship between cell size and SA:V ratio?
The smaller the cell, the higher the SA:V ratio.
Is a bigger cell or smaller cell more efficient?
Smaller cell.
What is asexual reproduction?
