science Flashcards
The structure of an object refers to what is mad of and how it parts together is called
Cell Structure
The basic unit of structure and living things is called
Cell
they fuuntion and include obtaining energy bring in nutrients and water and getting rid of waste
Cell function
a widely accepted explanation of a relationship between cells and living things
cell theroy
have advance technology to help look at cells and provide light to look through
microscope
is a tiny cell structure that carries out a specific function within a cell
organelle
a rigid supporting layer that surrounds the cells of theplants
cell wall
a thin flexible layer barrier that surrounds a cell and controls substances
cell membrain
dericts the cells activity
nucules
converts energy in food to energy used by cell
mitochondria
the thick fluid region of a cell located inside the cell membrain
Cytoplasm
the proscess by which the cell membrain takes particles into the cell by changing shape and particles
endocytosis
the process which the vacuole surrounding particles fusses with the cell forcing it to come out
exocytosis
the process by which molecules move from higher consointration to lower.
diffusion
an original of plants cell the caputares energy from sunlight and changes it to energy that cells can use to make food
chloroplast
the diffusion of water across a seletiry parable membrane
Osmosis
a sac like organism that stores water food and other material
vacuole
a property of cell membrain that allows some substance to pass across it
selectively permeable
Robert hook studies bark and fossils with a microscope and coins the term cell in what time line
1663
Anton van Lee observing living microorgainsim under the microscope in what time line
1674
marthaias schledieden concludes that all plants are made of cells in what time line
1838
therdor Schwann reaches the conclousin that all animals are made of cells in what time line
1839
Rudolf v rpeses that cells are only made from other cells
1855
