Day 24

1
Day 24

• Agenda
• Quiz
• Notes Cell Parts
• Animal Cell and Plant Cell Pictures

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Bell Ringer Day 24

• For each statement, write the statement, then
  answer prokaryote, eukaryote, or both
• Has no nucleus
• Has a cell membrane
• Has membrane-bound organelles
• Plant and animal cells
• Bacteria cells
• Can be multi-cellular

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Cell Parts

• Organelle- part of a cell that is specialized for
  a specific function

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Surrounding the Cell
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Cell Membrane

• Outer membrane of cell that controls movement in
  and out of the cell
• Lipid bi-layer

http//library.thinkquest.org/12413/structures.htm
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Cell Wall

• Most commonly found in plant cells bacteria
• Supports protects cells

http//library.thinkquest.org/12413/structures.htm
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Inside the Cell
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Nucleus

• Directs cell activities
• Separated from cytoplasm by nuclear membrane
• Contains genetic material - DNA

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Nuclear Membrane

• Surrounds nucleus
• Made of two layers
• Openings allow material to enter and leave
  nucleus

http//library.thinkquest.org/12413/structures.htm
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Chromosomes

• In nucleus
• Made of DNA
• Contain instructions for traits characteristics
  

http//library.thinkquest.org/12413/structures.htm
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Nucleolus

• Inside nucleus
• Where ribosomes are made

http//library.thinkquest.org/12413/structures.htm
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Cytoplasm

• Gel-like mixture
• Surrounded by cell membrane

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Ribosomes

• Make proteins from DNA instructions
• Found on ER floating throughout the cell

http//library.thinkquest.org/12413/structures.htm
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Endoplasmic Reticulum

• Smooth ER lacks ribosomes makes and transports
  lipids
• Rough ER ribosomes in surfacemakes and
  transports proteins

http//library.thinkquest.org/12413/structures.htm
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Mitochondria

• Releases energy through cellular respiration
  breaking down fats carbohydrates

http//library.thinkquest.org/12413/structures.htm
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Golgi Bodies

• Packages proteins
• Move materials within the cell
• Move materials out of the cell

http//library.thinkquest.org/12413/structures.htm
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Lysosome

• Recycles old cell parts and breaks down unwanted
  material
• Transports undigested material to cell membrane
  for removal

http//library.thinkquest.org/12413/structures.htm
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Vacuoles

• Membrane-bound sacs for storage
• Contains water solution
• Central vacuolehelps plants maintain shape

http//library.thinkquest.org/12413/structures.htm
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Chloroplast

• Usually found in plant cells
• Contains green chlorophyll
• Where photosynthesis takes place

http//library.thinkquest.org/12413/structures.htm
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Cytoskeleton

• Helps cells move and maintain shape and structure
• Flagellawhiplike structures for movement
• Ciliashorter hairlike structures for movement

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Typical Plant Cell
http//waynesword.palomar.edu/images/plant3.gif
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Typical Animal Cell
http//web.jjay.cuny.edu/acarpi/NSC/images/cell.g
if