Flashcards
Life Processes Part 1
Flashcards do conjunto (12)
- 1How do you define cells?Most basic unit of life that organisms are comprised of.
- 2nucleusControls cell activities.
Contains the genetic material.
Involved in replication, transcription & translation.
- 3cell membraneForms a barrier around the cell.
Selective permeability - controls substances pass within the cell from either direction
- 4cytoplasmLiquid-like jelly medium that allows metabolic & cellular activities to occur.
- 5golgi apparatus/complexreceives, modifies & packages substances and to be transported
glycolipids and glycoproteins synthesised
fuses two different food classes together
- 6Rough endoplasmic reticulum (ER)contains ribosomes that is involved in protein production
- 7smooth endoplasmic reticulum (ER)Contains no ribosomes.
Synthesises lipids (fat-based molecules e.g. glycerol)
- 8ribosomesProtein molecules that are involved in the synthesis of proteins.
Can be found as free flowing ribosomes in the cytoplasm.
- 9cell wall (only in plants)made of cellulose
rigid and withstands osmotic (water) pressure from the cell
additional protective membrane layer
maintains the shape and form of cell
- 10chloroplastorganelle involved in photosynthesis
converts light energy into chemical energy (carbon storage)
contains chlorophyll
- 11—pigment or molecule found in chloroplasts
absorbs sunlight to store carbon
- 12—contains cell sap that stores dissolved sugars, mineral ions and other solutes
stores food
supports turgidity of the cell - waters enter & exit depending on the availability