Botany
Fach von Ubrm
Fach von Ubrm
Fichier Détails
| Cartes-fiches | 143 |
|---|---|
| Utilisateurs | 18 |
| Langue | English |
| Catégorie | Biologie |
| Niveau | Université |
| Crée / Actualisé | 27.01.2022 / 13.12.2022 |
| Lien de web |
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How do the vascular bundles in roots differ from those in shoots?
In roots they are in one radial bundle; in shoots they are collateral.
- Phanerophytes: woody, perennial, >30 cm above ground, trees and shrubs; example: Holler - Geophytes: plants surviving with storage organs; example: Gelbstern - Therophytes: annuals, plants that survive as seeds; example: Kornrade, all cereals are therophytes
Which cell types are forming the xylem in angiosperm?
Vascular tissue
Which tissues arise from the pericycle?
Periderm
How is the epidermis characterised?
Has no intercellular spaces (except stomata!), no chloroplasts, single layer of cells, outer walls are thickened.
What is characteristic for the rhizodemis?
Has no stomata, no cuticle, bears no leaves.
Where in plants are meristems found?
In embryonic tissues.
What are intercellular spaces and how are they formed?
Small or large spaces between cells, mostly filled with gas or sometimes filled with plant product.
How does the hair in nettles function?
???
Hypostomatous means stomata are....
casparian stripes (bands) serve for ...
Bracts are...
plasmodesms are....
During the past 200 years, the CO2 concentration in the atmosphere....
What is heterophylly?
What is Cytology?
Who was the first Person who describes cells?
Which of the four is a saccharide?
How big is a parenchyma cell?
What is the difference between saturated and unsaturated fatty acids?
How do the head and tail of phospholipids behave?
What is the Plasmalemma ?
What is "transcription"?
What is TRUE for chloroplasts?
What is not true for the light depend reaction?
What are oligosaccharides are made of?
Complete the chemical reaction of photosynthesis.
6 CO2 + 6 H2O -> C6H12O6+ x O2
What is the main function of akkrusts?
What is NOT true for cellulose?
Which of the following substances is embedded in between cellulose fibres?
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