Observing Cells
Robert Hooke first used this device to observe cells 350 years ago.
microscope
nucleus
Long cells used to carry electrical impulses around your body.
nerve cells
This gas diffuses into your blood stream when you inhale.
An organism made of only one cell.
unicellular organism
Robert Hooke first observed these in cork. He later called them cells.
tiny roomlike structures
The jelly-like substance where chemical reactions take place.
cytoplasm
Cells that carry oxygen around your body.
Red blood cells.
This gas diffuses out of your blood stream when you exhale.
carbon dioxide.
A "fake foot" than amoebas can use to move around.
pseudopod
Objects under a microscope must be thin so that this can pass through them.
light
The part of the cell responsible for respiration.
mitochondria
Cells that carry male genetic material to an egg cell.
sperm cells
Diffusion occurs from areas of _______ concentration to ______concentration.
A tail-like structure that euglena can use to swim.
flagellum
The two types of lenses in a microscope.
Things that plant cells have that animal cells do not.
chloroplasts
Plant cells specialized to perform photosynthesis.
leaf cells
Substances move in and out of a cell by this process.
diffusion
Euglena contain these things that amoeba do not have.
eyespot and chloroplast
These move the stage up and down on a microscope.
Focus knobs: course/fine focus.
This gives chloroplasts their green color.
chlorophyll
Plant cells specialized to absorb nutrients and water from the soil.
root cells
Unicellular organism reproduce by this process.
binary fission