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Transcript of Cells
How do the following organisms
take in nutrients?
give off waste?
respond to stimuli?
All organisms are made up of cells
Cells are made up of organelles
brain of the cell
contains the DNA
is only in plants and bacteria,
provides support and structure
controls what goes in and out of the cell
fluid mosaic of phospholipids bilayers and protein gates
gel like liquid that the organelles are in
packages materials that are used by the cell
*large in the plant cell where it provides support
*stores water and food
*stores water food and waste
*lysosome are specific name for waste storing vesicles
where respiration occurs producing energy in the cell in the form of ATP
*only in plants
*where photosynthesis occurs
rough ER (has ribosomes on it)
the passageways that materials are transported around the cell on
cell division= producing two exact copies
*cell division in gametes (eggs, sperm, pollen, ovum)
*produce four cells with half the DNA.
*what does micro mean?
The study of little things like:
classified by shape:
like Streptococcus and Staphlyococcus
How big are protists, bacteria and viruses?
*protists are tiny
*bacteria are really really tiny
*viruses are WAY more tiny than either one!
How do cells get nutrient in and waste out?
*the movement of molecules from an area of high concentration to an area of low concentration
*the diffusion of WATER across a membrane
*doesn't need energy=diffusion
*movement of molecules from low to high concentration
*doesn't happen on its own
*require energy (ATP)
*movement of molecules across the membrane that are too big to fit through the protein gates.
occurs in the mitochondria
the chemical reaction between sugar and oxygen--> water and carbon dioxide and energy in the form of ATP
occurs in the chloroplasts
carbon dioxide + water +sunlight--> oxygen + sugar
common in pond water
specialized structures for moving
varied group besides these similar characteristics
has cilia: little hairs all over their bodies that beat to move
animal-like: eat other things
has a flagella- whip like tail for moving around
plant-like: has chloroplasts, makes own food through photosynthesis
psuedopods (fake feet) ooze cytoplasm in direction it wants to move
animal-like: eats other things
colony of single-celled protists
each one has a flagella
How are our bodies put together?
Cells specialize to do different jobs
Create a cartoon featuring a protist we have talked about.
Include a specialized structure (flagella, cilia, or pseudopods.