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13 Cards in this Set

  • Front
  • Back
matter
invisible particles called atoms
atoms
made of four elements-
carbon
hydrogen
oxygen
nitrogen
molecule
two or more atoms join to form a molecule
chemical reactions are
the basis for all body processes
three main types of chemical reactions and give a description of each
1. synthesis- A+B=AB
2. decomposition- AB=A+B
3. metabolism- a biochemical modification of chemical compounds of living organisms and cells
cellular level
cells are the smallest living units of an organism
anatomy of a cell, three parts
1.cellular membrane-lypids and proteins
2. cytoplasm-intracellular fluid which gives cells substance and suspends organelles
3. nucleus- large organelle containing DNA
simple diffusion
passive transport
substances move from an area of high concentration to an area of low concentration, this happens chemically through the cell membrane
active transport
temporary attachments are formed between molecules and protein, the molecule can then take the protein through the cell membrane
phagocytosis
a cell absorbs large particles through the cell membrane (a vesicle surrounds the particle and envelopes the particle)the cell then spits out what it doesn't want
pinocytosis
same a phagocytosis but with small particles
exocytosis
expulsion of waste from the cell
cellular reprodution
mitosis- when every aspect of the cell is reproduced
one parent cell divides into two daughter cells that are fully functioning