208 Answered Questions for the topic botany

07/29/19

Why do plants have pith and how is it useful to them?
Many plants have pith, from walnut trees to corn to ragweed, but I can't think of anything it does them. What is pith and how is it useful to them?
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Botany Development

07/29/19

Decision-making in tree limb growth?
Sorry if this is a naive question, but it occurred to me as I was walking across campus today; How does a tree decide which limb is allocated the most resources, and thus grows the largest? My... more
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07/29/19

Why does the olive tree produce a bitter tasting fruit?
What is the survival value for the olive tree to produce a bitter tasting fruit, even when it is ripened? I realize some fruits and berries are species specific, i.e., meant for specific animals... more
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07/29/19

In plants why are potassium and nitrate ions absorbed faster than any others?
Quoting my A-level biology textbook: >$\\ce{K^+, NO3^-}$ are absorbed by plants faster than any other ions. Whereas, $\\ce{Ca^2+, SO4^2-}$ are absorbed with the slowest speed. What is the... more
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Botany Ecosystem Trees

07/29/19

Flora of Ice Age Europe?
I'm trying to get a very in-depth idea of the ecosystem of Pleistocene Europe, somewhere around 40,000 years ago, and I can't seem to find what types of foliage (other than the obvious grasses and... more
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Botany Reproduction

07/29/19

(A)sexual reproduction of plants?
Are all plants capable of sexual reproduction? Some can do asexual reproduction as well but I haven't found any plants that aren't capable of sexual reproduction. Is it correct to say all plants... more
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07/29/19

How many oxygen atoms are used up in aerobic oxidation of one pyruvate?
Please explain elaborately, if possible using the EMP, Krebs and ETS cycles.
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Botany

07/29/19

Looking to study botany, some general advice?
I've been doing some hydroponics lately and I've noticed I don't have much insight about how plants really work under the hood, I would like to have the full picture and understand more about... more
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07/29/19

How long will a vegetable live for after being harvested?
I understand this might depend on the types of vegetables, but is there an average or studied specifics? Does it die immediately? Is there a way to precisely diagnose death in plants? If so, what... more
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Botany

07/29/19

Do plants absorb toxins from the soil?
Consider a plant like Aloe Vera that grows up in a toxic environment where the concentration of pesticides, and materials like lead, mercury, cadmium, arsenic etc is very high(e.g. Marshland... more
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07/29/19

Feeding animals or plants with coffee?
What happens if you feed animals or plants with coffee? Say, just once, or daily? There are some extra coffees in the pot, and I don't know whether it is a good idea feeding animals or plants with... more
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Botany Growth Movement

07/29/19

Are nastic responses growth responses?
I know they are non directional movement responses, but like tropic responses, does their movement involve growth?
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07/21/19

The source of ABA for inducing stomatal closure in the detached leaves?
As you may know, when leaves detached from the whole plant close their stomata to maintain water and prevent wilting. Could you please let me know what is the mechanism of stomatal closure in the... more
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Botany

07/20/19

Water absorption plant physiology?
Can the movement of water in plant outside xylem be multidirectional ,like in case of sucrose transport?
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Botany Pollination

07/18/19

What is the use of male plants in nature?
If pollination is done by insects like bees and through the air, then what is the use of male plants in nature?
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07/17/19

What is a microsporophyll?
Plant identification terminology.
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Botany

07/16/19

What are embryophytes? And how are they characterized?
What does it mean when it's said that plants are embryophytes? What are the specific characteristics that help determine that?
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07/15/19

Why are newly grown leaves red?
After a period of heavy rain, several trees in my garden will put out an impressive burst of new leaves, with an incredible vibrant red colour, almost the colour of port wine. The new leaves will... more
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07/14/19

Why do plants have green leaves and not red?
I know plants are green due to chlorophyll. Surely it would be more beneficial for plants to be red than green as by being green they reflect green light and do not absorb it even though green... more
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Botany

07/14/19

Organelles present in sieve tubes?
I know that sieve tubes do not have ribosomes, nuclei and cytoskeletal elements. What other organelles does it not have? Does it have a cytoplasm?
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Botany

07/14/19

What is the tissue structure of bamboo?
If the xylem and phloem of the bamboo is not in the hollow center than where is it located/situated? cannot get clear cut answers from the above discussions
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Botany

07/14/19

Difference between autonomic and paratonic movements in plants?
I can't understand the difference be because both involvery the main cause that is an external stimuli, so how do they differ(
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Botany Reproduction

07/13/19

Why do flowers naturally reproduce with their own species?
I have always wondered why flowers reproduce with the same species naturally. Why can't the pollen grains get to a different species flower through via the wind, water, or insects?
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Botany Genetics Seeds

07/12/19

What DNA does a self-fertile plant's seedling have?
Some plants are said to be `self-fertile`. An example is `Prunus tomentosa`. Assuming that no cross-pollination happened with other plants, if a self-fertile plant such as `prunus tomentosa`... more
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07/12/19

Plants that are siblings: How does this impact pollination?
A friend has two cherry bushes (prunus tomentosa). Prunus tomentosa is said to be partially self-fertile, but benefits from cross-pollination. The two cherry bushes set fruit, and so my friend... more
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