2. Test
Stoff des 2. Tests - Criteria of life and Cytology
Stoff des 2. Tests - Criteria of life and Cytology
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Flashcards
Label the levels of life
Moleküle - Organellen - Zellen - Gewebe - Organe - Organismen
what happened 1600 ?
Johann & Zacharias Jansen - entwickelten die ersten Mikroskope
What happened 1665?
Robert Hooke - Entdeckung der "Zelle", Rinde der Korkeiche
1632 - 1723 ?
Antonie von Leewenkook - baute über 500 Mikroskope. Untersuchte Bakterien und Blutzellen.
Folgende Jahrhunderte?
Weiterentwicklung der Technik
heute?
bis zu 2000fache Vergrößerungen
who formulated the cell theory?
Schleiden und Schwann
The cell is the ........ of every organism
smallest unit
All organisms consist of ............. and their ........
one or more cells and their products
all cells have a ............
similar basic structure
the basic .......... take place in the cells
metabolic processes
new cells can only emerge from ............ through
already existing cells through cell division
during cell division the ........... and the ......... are passed on
genetic material and the genetic informations
cytology is concerned with?
buildup of the cells - colarboration (Zusammenarbeit) in the organisms and with the function of the cell compounds
cells vary in .... , on average they are ........
their size, 0,1 - 0,01 mm
Leukoplasten:
Bau wie Chloroplasten, aber farblos, weil Chlorophyllos
Funktion: können Stärke und Öle speichern (Kartoffeln)
Chromoplasten:
Aufbau: ähnlich wie Chloroplasten, besitzen Farbstoffe (rot, gelb)
Bestimmen Färbung von Blumenblättern (Sonnenblumen), Früchten (Paradeiser) oder Speicherorganen (Kartoffeln)
Funktionen: Farben regen Verbreitung der Früchte durch Befruchtung der Tiere an. Außerdem chemische Abwehr von Fressfeinden
Alle Plastiden gehen aus ...... hervor -> .... und .... können sich in ...... umwandeln, wenn sie dem ...... ausgesetzt sind.
gemeinsamer Vorstufe - Chromo- und Leukoplasten - Chloroplasten - Licht
Growth and Differentiation:
Development to a ........
more spezialized state
Cells grow through? Organisms grow through?
Energiezufuhr ; Zellteilung
Cells grow through? Organisms grow through?
Energiezufuhr ; Zellteilung
Aging and Death:
is a feature of ......... except ...... which are ..... because ........
all living beings ; single-cells ; immortal ; they survive in their daughter-cells
Aging and Death:
is a feature of ......... except ...... which are ..... because ........
all living beings ; single-cells ; immortal ; they survive in their daughter-cells
Reproduction:
two kinds?
vegetative = asexual ; cell division
generative = sexual, egg-cells and sperm-cells, leads to recombination of the genetic material
Organisms are entities with ?
clear boundaries, a typical distinctive form and a complicated inner-structure
responsiveness to stimuli:
Organisms react to? what do they therefore do? what do the mimosa and venus fly trap do?
their environment - Therefore animals have sensory organs and plants react to light / grow against the direction of gravity
they fold their leaves when being touched
for ..... animals have ..................
locomotion (ortsbewegung)
legs, wings or fins
when do plants move`?
while growing
move their leaves and open and shut their petals.
