Cell Requirements Flashcards
(6 cards)
1
Q
Characteristics Of Living things
A
Use a source of energy
gain nutrients, grow, reproduce
Respond to stimuli
Excrete wastes
are made of cells
2
Q
autotrophs
A
use light or chemical energy to synthesise food from simple inorganic substances
3
Q
Heterotrophs
A
Obtain energy by consuming organic substances
4
Q
cell theory
A
the cell is the basic unit of life
cells arise from pre existing cells
every living organism is made up of one or more cells
5
Q
common features of all cells
A
the contents of the cell are enclosed in a cell membrane
there is a semi-fluid substance inside the cell membrane called the cytosol
cells contain chromosomes which contain genes
all cells have ribosomes which function to make proteins
6
Q
A
