Transcript Review of Mitosis and Other Things

SNC2D
 By the age of 20, how many cells make up our
bodies?
 100 trillion cells
 What does DNA stand for?
 Deoxyribonucleic acid
 What happens during Metaphase?
 Paired chromosomes align in the
middle of the cell
 Two identical cells are formed in this stage of mitosis
 Cytokinesis
 Paired chromosomes are attached at this spot
 centromere
 Chromosomes separate and move to opposite ends of
the cell
 Anaphase
 Spindle fibers break down and chromosomes lose
their shape during this phase
 Telephase
 What term matches the following definition..
 Long piece of coiled DNA and proteins
 Chromosome
 List 3 life processes of the cell
 Growth, movement, reproduction
 Could also include: waste removal,
exchange of gases, intake of nutrients,
etc.
 What is the largest zoom on the objective lens using
our compound microscopes in class?
 40x
 If the power of the objective lens is 40 times, and the power
of the ocular lens is 10x, what is the power of the
microscope?
 400x
 What are the stages during mitosis and which one
takes the longest time? Explain your reasoning.
 Prophase, Metaphase, Anaphase,
Telephase, Cytokinesis
 Prophase takes the longest time
because it has two phases – more
happens during prophase than any
other phase of mitosis
 List two differences between plants and animal cells
 Plant cells have larger vacuole
 Plant cells contain chloroplast
 Plants contain cell walls
 Animal cells have centrioles
 Animals cells have specialized
compounds
 I am a jelly-like substance that fills the cell and surround
the organelles. I also contain nutrients required by the cell
to carry on its life process. What am I?
 cytoplasm
 Which organelle is filled with enzymes?
 Lysosome
 What is photosynthesis?
 Plants use energy from the Sun to convert carbon
dioxide and water into sugar and oxygen
 Eyeball is to human as ____________ is to microscope
 Ocular lens
 Why are fluorescent substances added to cells when
using the compound microscope?
 When cells are placed in UV light the
fluorescent substance will glow, making
the parts of the cell more visible.
 To improve contrast between parts of the
cell and its background
 Blueprint is to building as _________ is to a cell
 DNA
 What acronym could be used to remember the phases
of mitosis
 Backwards sTAMP
 How long does the cell stay in Interphase?
 90% of the time
 Name one of the scientists who discovered that DNA
was in a double-helix shape.
 James Watson and Francis Crick – wrote paper
 Maurice Wilkins – helped with discovery
 What three stages occur during Interphase?
 Cell growth, DNA replication and
preparation for Mitosis
 T
F The mitochondria is the control centre of the
cell
 FALSE - nucleus
 Name a specialized compound that an animal contains
 Cholesterol, red and white blood cells,
insulin, taste buds – lots more!
 Correct these statements:
 The golgi apparatus is the powerhouse of the cell
 Telephase is the last stage of mitosis
 mitochondria
 cytokinesis
 Put the stages of mitosis in order
 Metaphone, Early prophase, interphase, late prophase,
telephase, cytokinesis, anaphase
 Early prophase, late prophase,
metaphase, anaphase, telephase,
cytokinesis
 What is a chromosome?
 Coiled DNA
 What happens to the cell when it does not go through
apoptosis.
 In turns into cancer cells and keeps
spreading
 What environmental factors can contribute to
mutated cells? What can these factors lead to?
 Factors can include smoking, the SUN,
inhaling toxic chemicals, etc.
 These factors can lead to various types
of Cancer
 What would happen if our vacuoles stopped working
in our cells?
 The bodily functions require water in
our system would cease functioning
(cells cannot obtain water)
 Mr. ________ was found killing crippled people
around Nucleus Town. He was filled with dirty
enzyme thoughts. Who did it?
 Mr. Lysosome