Cell
DNA
Mitosis &
Organelles Replication Cell Cycle
Asexual
Sexual
Reproduction
Reproduction
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The organelle that makes
ribosome
Nucleolus
Three organelles that plant cells
would have that animal cells
wouldn’t
Cell Wall
Central Vacuole
Chloroplast
The “highway system” of the cell
Endoplasmic reticulum
Genetic material (DNA) is found
in this organelle
Nucleus
Reason why cells must divide
Nutrient supply across the cell
membrane can not keep up with
nutrient demand of a larger cell
What does DNA stands for? And
What shape does DNA take?
Deoxyribonucleic acid
Double Helix
The three parts that make up
DNA and the small segments of
DNA are called what?
______________________
Sugar, Phosphate and Bases
Gene
Provide names to 4 bases found
in DNA and indicate their pairing
partners.
A (adenine), T (Thymine),
C (Cytocine) , G (guanine)
A with T; C with G
Note : if one of your DNA strands has
the following sequence….
ATTAAGCA
What would be the complimentary
strand?
Most of the time DNA exists in
the nucleus in the form of what ?
___________________
Chromatin
How is the message for a protein
(to be made) carried from the
nucleus to the ribosome?
The DNA message for a specific
protein is copied into RNA which
leaves through nuclear pore and
delivered message to the
ribosome
The longest stage of the cell
cycle?______________
What occurs during that phase?
(provide 3 reasons)
Interphase:
-growth and
preparation
-DNA replication
continued growth and
preparation (including
copy organelles and
making proteins)
Draw sister Chromatids. Make sure
to label the centromere. What do the
two sister chromatids have in
common
Sister chromatids
are replicated
chromosomes.
They are identical
copies of DNA
Q1:What Phase of mitosis is
occurring in the diagram below?
Q2: Explain what is happening in the phase above.
The sister chromatids are
being ripped apart at he
centromere and move to
the opposite sides of the
cell
Q: If you started out with 365
chromosomes in the parent cell,
how many chromosomes would
each of the daughter cells have
365
Q:What occurs during metaphase?
Chromosomes line up
across the middle of the
cell
The process by which one cell
divides into two new cells
Mitosis
Q:Which of the following is not a
type of asexual reproduction?
Spore formation, gamete formation, binary
fission, budding, fragmentation, vegetative
reproduction?
Gamete formation
Q: What type of asexual
reproduction is occurring
in the diagram found
below?
Binary fission
Phase of cell division that is not
really part of mitosis
Cytokinesis
Stage during which chromatids
replicate to produce
chromosomes
Interphase
Q: The sperm & egg are referred
to as…
Q: How many chromosomes will
an egg or sperm cell have if the
parent cell had 46 chromosomes?
It is described as _____________
(haploid/ or deploid)
Gametes, 23 chromosomes,
haploid
A pair of matching chromosomes
are said to be …
Homologous
Q: What stage of meiosis
is occurring in the picture
found below?
Q: Referring to the
picture above, what has
lined up along the
equator?
Q: What can occur during
meiosis
Metaphase I, homologous
chromosomes, crossing over
Why meiosis is required for
sexual reproduction
Haploid gametes combine to
form a normal diploid zygote.
What is the difference between
Anaphase I and Anaphase II?
Anaphase I: homologous
chromosome pairs are pulled away
from each other towards opposite
ends of the cell
Anaphase II: sister chromatids are
split apart at the centromere and
move to the opposite pole.
Q:What are two advantages of
asexual reproduction? What is
the major advantage of sexual
reproduction?
Asexual Reproduction:
1. Genetically identical offspring
2. lots of offspring can be reproduced
quickly
Sexual Reproduction:
Genetic diversity