cell biology Flashcards
1) organisms composed of only one cell are called ____
2) organisms composed of more than 1 cell are called ____
1) unicellular
2) multicellular
cells contain structures in them called ___
organelles
5 parts of animal cell
cell membrane
mitochondrion
cytoplasm
nucleus
ribosomes
8 parts of plant cell
cell wall
cell membrane
nucleus
mitochondrion
ribosomes
vacuole
cytoplasm
chloroplast
PRACTICE LABELLING THEM
how are fungal cells different to plant and animal
different cell wall structure
how are bacterial cells different to plant and animal
1) DNA isn’t enclosed in a nucleus
2) they have ribosomes and plasmids, but other organelles are absent
3) they have a different cell wall structure
cell membrane function
controls the passage of molecules that enter and leave the cell
cell wall function
provides and maintains the shape of the cell
what is cell wall made of in plant cells
cellulose
chloroplast function
site of photosynthesis
mitochondrion function
site of aerobic respiration
nucleus function
controls the activities of the cell
plasmid function
consist of extra chromosomal material
ribosome function
site of protein synthesis
vacuole function
contains cell sap and provides plant and yeast cells with turgid shape
cytoplasm function
site of chemical reactions
1) to change cc to mm multiple by __
2) to change mm to micrometre multiply by ___
1) 10
2) 1000
1) to change mm to cm divide by ___
2) to change micrometres to mm divide by __
1) 10
2) 100
to convert mm in micrometres…
multiply by 1000
which is bigger
1) 1cm
2) 1mm
3) 1 micrometre
1 then 2 then 3
to convert micrometres to mm
divide by 1000
how to estimate cell size
calculate length of one cell and breadth
how to calculate total magnification
eyepiece lens magnification x objective lens magnification
what do stains do
example of one
they make structures more visible under the microscope
example - iodine solution
