Download Grade 10 Name: Unit: Tissues and Systems Date: Cell Cycle The

Grade 10
Unit: Tissues and Systems
Cell Cycle
1.
Name: ____________________________
Date: ____________________________
The cell cycle for plant cells is depicted in the diagrams below. Match each picture with the title that belongs to it.
Label
a) Interphase
_____
Diagram
____
b) Early in prophase
c) Later in prophase
d) Metaphase
e) Anaphase
f) Telophase
g) Cytokinesis begins
_____
_____
_____
______
_____
______
h) Cytokinesis is complete
2.
What is the difference between the way cytokinesis happens in plant cells compared to how it happens in animal
cells? ___________________________________________________________________________________________
________________________________________________________________________________________________
3.
Animal cells have an organelle that is important in anchoring spindle fibers for chromosomes to line up on. Plant cells
do not have this organelle. The name of the organelle is the ___________________________
4.
The sample of cells on the next page comes from the root tip of an onion. Many of the cells shown are in one of the
stages of cell division. Why is so much cell division occurring in a root tip?
________________________________________________________________________________________________
Examine the diagrams of the cells below. Notice the small numbers in several of the cells.
Identify the stage of the life cycle each of the numbered cells is in.
Number on the Cell
1
Stage of the Life Cycle the Cell is In
2
3
4
Cells 5 & 6 are shown
close together at the
end of the last stage in
cell division.
Cell Wall
cytoplasm
4
2
nucleus
nucleolus
5
6
1
3
.
SNC 2D
The Cell Cycle Overview
1.
Name: __________________________
Date: _________________________
Based on what you know about osmosis and diffusion, why do cells divide instead of simply becoming larger and larger?
2. Give two other reasons why cells need to be able to divide to form more cells.
3. Use the words in the word list to fill in the blanks below.
Word List
Interphase
Cytokinesis
Cell division
Mitosis
Cell cycle
Cell growth
Prophase
Anaphase
Metaphase
Telophase
growth, development, production of
waste materials
a)
The continuous series of events in the life of a cell is called the _____________________ . It is made up of two major
processes called _________________________ and ___________________________ .
b)
___________________________ is the process where one parent cell divides to form two identical “daughter” cells.
c)
The two main phases of cell division are ____________________ and ____________________.
d)
The cell makes a copy of its organelles and its DNA in the cell cycle phase called _______________________ to
prepare for the beginning of mitosis. Other activities of the cell while in this stage of the cell cycle include
___________________________________________ .
e)
Mitosis has 4 major stages. In order of appearance they are __________________ , ____________________,
_________________________ and _________________________ .
4. Match each term on the left with its descriptor on the right.
Term
Descriptor
____ anaphase
A. The second phase of mitosis when the chromosomes align in the centre of the cell.
____ cell cycle
B.
The continuous series of events in the life of a cell in which it is produced, grows, reproduces and
dies.
C.
The first phase of mitosis when the nucleus and nuclear membrane disappear and chromosomes
form.
D.
The stage in the cell cycle when a cell grows and carries out its usual functions and well as making a
copy of its DNA and organelles to prepare for cell division.
E.
The ability to grow new cells to replace damaged or lost body components.
F.
The fourth phase of mitosis when the membrane surrounding the nucleus re-forms, creating 2 new
nuclei.
G.
The stage in the cell cycle when the contents of the nucleus separate into 2 identical cells.
H.
The stage in the cell cycle when the cytoplasm and organelles divide into 2 identical separate cells.
I.
The 3rd phase in mitosis when the chromosomes separate and move to opposite ends of the cells.
____cytokinesis
____ interphase
____ metaphase
____mitosis
____prophase
____regeneration
____telophase