Chapter 7: The Basis of Life Flashcards
Who discovered the theory of Spontaneous Generation?
Aristole
What is Spontaneous Generation?
Abiogenesis : life could arise from non-living matter
what did francesco redi do?
he was the first person to test aristole’s theory, with maggots and raw meat
what did louis pasteur discover?
that “active principles” were organisms in the air, due to the swan flask broth experiment.
what did pasteur’s experiment discover?
discovered biogenesis, due to bacteria in the broth
cell theory
- all organisms are composed of one or more cells
- the cell is the smallest functional unit of life
- all cells are produced from other cells
what did ruldolf virchow predict?
predicted biogenesis, yet did not prove it
low objective lens
4x
medium objective lens
10x
high objective lens
40x
cell membrane
protective barrier around cell, allows for transport
cell wall
rigid and supportive giving cell shape, contains cellulose
centriole
located outside nucleus, for cell division
chloroplast
contains chlorophyll, photosynthesis
cytoplasm
fluid in cell that keeps other cells in place
gogi apparatus
receives packages, sorts, repackages and distriubtes to cells
lysosome
contains disgestive enzymes that breaks down particles, also gets rid of dead or bad cells
mitochondrion
converts sugar into energy
nucleus
contains genetic materials, directs cell activity
ribosomes
has amino acids that assembles into proteins
rough endoplasmic reticulum
produces protein packages and transports to parts of cell
smooth endoplasmic reticulum
produces fat and oil (lipids) packages and transports to parts of cell
vesicle
stores and transports materials in and out of cell
vacuole
storage for water, nutrients and wase
which cell parts are only found in plant cells?
- cell walls
- chloroplast
which cell parts are only found in animal cells?
- centriole
- lysosome
