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Date: _____________________
Chapter 2.3: How Cells Reproduce
1.
Where do all cells come from? _____________________________________________
2.
A) What is regeneration? __________________________________________________
_______________________________________________________________________
B) What type of animals have this ability? _____________________________________
C) Do humans have this ability? Explain. ______________________________________
_______________________________________________________________________
3.
A) Do all cells grow and divide at the same rate? ________________________________
B) What cells live for a very short period of time? _______________________________
C) What cells live for a very long period of time? _______________________________
Mitosis
4.
A) What is a chromosome? _________________________________________________
_______________________________________________________________________
B) How many chromosomes does a normal human have? _________________________
C) What cells in the human body have only half this number? I) _________________
II) ________________
D) Chromosome combination for I) Human Female_______
II) Human Male _______
5.
Does the number of chromosomes have anything to do with organism complexity?_____
A) beaver_______
B) carp ________
C) elephant_______
D) fern_______
E) radish_______
F) yeast_________
6.
What does the acronym DNA stand for? _______________________________________
_______________________________________________________________________
7.
What is Mitosis? _________________________________________________________
_______________________________________________________________________
8.
Label in the following diagram of the 4 phases of cell division. Give a brief summary of
the main events in each section.
How Rapidly Do Cells Divide?
9.
A) How long do the following cells take to divide
I)
bacterium _______ II) A frog embryo cell? ______ III) A liver cell?________
B) Under ideal conditions, how many cells could one bacteria cell divide into in;
I) 3 hours?
II) In 4 hours?
Cells and Cancer
10.
A) What is cancer? _______________________________________________________
_______________________________________________________________________
B) Why does cancer sometimes cause death? ___________________________________
_______________________________________________________________________
_______________________________________________________________________
11.
What is a carcinogen? _____________________________________________________
_______________________________________________________________________
ex._____________________________________________________________________
12.
A) What are the 3 most common types of cancers in Canada for women?
_______________________________________________________________________
B) What are the 3 most common types of cancers in Canada for men?
______________________________________________________________________
13.
In theory, how is cancer treated? _____________________________________________
_______________________________________________________________________
14.
What are some of the treatments options available?
I)
___________________: _____________________________________________
II)
___________________: _____________________________________________
III)
___________________: _____________________________________________