Essays on Cotyledons

What are the female reproductive parts of the angiosperm flower?

The female reproductive parts of a flower include the stigma, the ovary, and the style. Their collective name is normally referred to as carpel. a flower may be composed of one or several pistils. For reproduction to occur, all these parts play an important role. The stigma is the female part of a flower that receives pollen grains. It normally has a sticky surface to enable pollen grain to stick and germinate on it. There are several shapes of the stigma. The different shapes enable them to be well adapted to their role in reproduction. Some of the shapes ...

Analytical methods to evaluate seed dormancy in legumes

Abstract Legumes are known to have multiple health benefits. The seed coat in particular contains a number of bioactive compounds which possess antioxidant activity. Of great interest is the relationship between the chemical composition of the seed coat and its role in seed dormancy. Modern technological approaches are currently used to further identify these compounds and determine their role in seed development; these include NRIS FTIR, mass spectroscopy, electron microscopy and chromatography. The following review describes the constituents of the legume seed coat and their respective roles in dormancy and other stages of seed development. The review also highlights ...

#84

Now that the pollen grain is mature, what has happened to the micro sporangia?

The microsporangium is likely to wither and then stop producing the microspores. #85 what is the term given to this stage of the anther

Dehiscent

#91

Why is the endosperm being digested?

#92

How are the seeds of this three similar and how are they different

#93 what does the staining pattern tell you about the content of the endosperm and embryo

Fruit

#94 what type of fruit does each item represent - Drupe - Berry - Pepo - Pome - Complex fruits - Dry fruits #95 does this structure look to have arisen from a single carpel housing multiple seeds or multiple carpels each housing one seed

Multiple carpels each housing one seed.

#96 is the sunflower a ...

Question 1: If flowers give rise to fruits then what are the functions of showy flowers? If flowers are not showy, than how do they accomplish what a showy flower accomplishes? Showy flowers function to attract to attract pollinators. According to Thornhill and Gangestad (89), showy flowers are specialized structures (selected male adaptations) that increase the male mating success by attracting the pollinators. Non-showy flowers rely on different mechanisms for pollination such as wind. Question 2: Why are the cotyledons in the bean seeding somewhat shriveled up and not as fleshy as they were in the seed? ...