Botany
Fach von Ubrm
Fach von Ubrm
Kartei Details
| Karten | 143 |
|---|---|
| Lernende | 18 |
| Sprache | English |
| Kategorie | Biologie |
| Stufe | Universität |
| Erstellt / Aktualisiert | 27.01.2022 / 13.12.2022 |
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Which of the following plants is NOT an early-spring geophyte?
What is the difference between eustress and distress?
What is restitution?
Which of the following is an adaption to water stress?
What is true for C4 photosynthesis
What is Mycorrhiza?
Which of the following is an antibiosis?
Terrestrial ecosystems absorb which proportion of anthropogenic CO2 emissions?
stomata open when....
Parenchyma cells are/serve for ...
Which cell is NOT part of the wood?
Plants whose surviving buds are under water
are ...
We use shoots as storage organs in ...
Which of the following plants is exozoochorous?
The light reaction of photosynthesis takes
place in...
The dark reaction of photosynthesis takes place in...
Carbohydrates are mostly transported as ....
Carbohydrates are mainly transported in ...
What is NOT a component of cell walls?
Polypeptide chains folding into helices or
sheets is the?
What is the function of the root cap?
Produced by apical meristem, produces mucilage to protect and assist root growing in the soil.
What is characteristic for the rhizodermis?
Is the Epidermis of the root, the outermost layer of the root, no cuticle, no stomata, no leaves, thin
walled, has root hair.
What are cormophytes?
A vascular plant, plant they have roots, shoots, and leaves.
What is endozoochory, exozoochory and anemochory? Give an example for each:
zoochory: seed dispersal via animals. Endo: inside, get eaten by animals, after extraction are
fertilised. Example: raspberry. Exo: seeds attach to animals. Example: burdock. Anemochory: seed
dispersal through wind. Example: dandelion.
Why does water flow upwards in plants?
It flows in the xylem via negative pressure due to leaf transpiration.
Briefly explain the advantages and disadvantages of C4-plants:
advantages: bind more CO2, lower water loss; disadvantages: energy intensive, require much light,
work at higher temperatures.
Explain and give examples of barochorous, ballochorous and hydrochorous seed dispersal:
barochorous: seeds just fall to the ground, example: oak, ballochorous: plants disperse their seeds by
explosion, example: Springkraut, hydrochorous: plants use water to disperse their seeds, example:
coconut.
How do plants and Rhizobium bacteria profit from root nodules?
Rhizobium bacteria can fix and reduce nitrogen N2 to NH3. In the root nodule the bacteria are
protected from oxygen which is important for the chemical reaction. The bacteria feed the plant with
N2; the plant shares organic substances with the bacteria.
What do chloroplasts and mitochondria have in common?
Have two membranes, the inner one is heavily folded. Contain own DNA and ribosomes.
What is the function of the different pastids?
Chromoplast: coloured by carotins
Chloroplast: photosynthesis
Amyloplast: starch storage
Leucoplast: storage of various substances
Etioplast: develop in absence of light
Can be transformed from one form into another!
Aleuron is found in ...
Why is plant growth low in arid regions (such as deserts)?
When does the water potential decrease (become more negative)?
Phytochrome respond to …
What is a plant apoplast?
Which plant hormone is used to promote root growth?
Which tissue is mainly responsible for the selection of nutrient uptake in roots?
Hygroscopic movement in plants …
Transport in the phloem …
Calvin cycle is part of the …
