Flashcards
IB Bio Flashcards
Flashcards do conjunto (26)
- 1The units in which cells are measuredMicrometres
- 2CytoplasmLiquid surrounding the nucleus including organelles
- 3CytosolThe liquid surrounding the nucleus, not including organelles
- 4ProtoplasmAll living parts of the cell including the nucleus
- 5Stain for animal cellsMethylene blue
- 6Stain for plant cellsIodine
- 7Component of plant cell wallCelulose
- 8What does the vacuole contain?Cell sap - salts, pigments, sugars
- 9Function of the cell wallSupport
- 10Cell membranes are composed ofProteins, and phospholipids
- 11Permeability of cell membranesSemi or selectively permeable
- 12Transport using energyActive transport
- 13Functions of cell membranesThe surface of the cell membrane contains receptors that receive chemical messages from other parts of the body and bring them to the cell
Membranes retain the cell contents
Membranes control what enters and leaves the cell
Membranes provide support
Membranes are semi-permeable in that they allow some substances to enter the cell freely, and prevent others from entering at all - 14DNADeoxyribonucleic Acid
- 15Number of chromosomes in humans46
- 16Live plant cells without a nucleusPhloem sieve tube cells
- 17Live animal cells without a nucleusRed blood cells
- 18Where are ribosomes made?Nucleolus
- 19MitochondriaEnergy supplier, aerobic astage of respiration, reproduction by means of binary fission
- 20ChloroplastsWhere photosynthesis takes place, contain chlorophyll (green pigment)
- 21Light stage of photosynthesisGranum
- 22Dark stage of photosynthesisStroma
- 23Permeability of cell wallsFully permeable
- 24Function of ribosomesProtein synthesis
- 25ProkaryotesNo true nucleus or membrane-enclosed organelles
- 26EukaryotesTrue nucleus and membrane-enclosed organelles
Informações
- Descrição
- Flashcards to test basic knowledge of cell structure.
- Criado por
- j. stu
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