The intine layer, Biology

Assignment Help:

The Intine Layer

As soon as the tetrads release the microspores, the inner layer of the pollen wall (intine) is formed. Proteinaceous lamellae are embedded in the matrix of the intine, concentrating around the germpore. The proteins incorporated into the intine are contributed by the cytoplasm of the gametophyte, i.e., pollen cytoplasm. In members of the Malvaceae and several other plants, the proteinaceous lamellae are dispersed in the intine without coming in contact with the exine or pollen cytoplasm.


Related Discussions:- The intine layer

Which sugars does not contains an o-glycosidic bond, Which of the following...

Which of the following sugars does NOT contains an O-glycosidic bond? Select one: a. amilose b. amylopectin c. glycogen d. cellulose

Show the energy pyramids, Q. Can the amount of available energy in a given ...

Q. Can the amount of available energy in a given trophic level be larger than the available energy in inferior trophic levels? What does that condition means to the conformation of

Show complications of mitral stenosis, Q. Show Complications of Mitral Sten...

Q. Show Complications of Mitral Stenosis ? Hemoptysis It is a common complication in patients with mitral stenosis and is related to the severity of mitral stenosis. Pulm

What is a test tube and how is it used, What is a test tube and how is it u...

What is a test tube and how is it used? A test tube is a clear, cylindrical glass tube generally open at one end and rounded at the other, used in laboratory experimentation.

Explain mental changes - clinical signs of kwashiorkor, Explain Mental chan...

Explain Mental changes - clinical signs of kwashiorkor? You would find a kwashiorkor child to be unusually apathetic with absolutely no interest in the surroundings. The child

What is the main biological process, Q. What is the main biological process...

Q. What is the main biological process that consumes carbon dioxide? The major biological process that consumes carbon dioxide is photosynthesis.

Evolution the eukaryotic cell or the prokaryotic cell, Which type of cell c...

Which type of cell came first in evolution the eukaryotic cell or the prokaryotic cell? Ans) This is an interesting problem of biological evolution. The most accepted hypothesis

What are other organs and tissues made from that germ layer, From which ger...

From which germ layer do the epidermis and the nervous system originate? What are other organs and tissues made from that germ layer? Epidermis and nervous system have the simi

Genic type-genetic basis of sex determination, Genic Type-Genetic basis of ...

Genic Type-Genetic basis of Sex Determination In some organisms, certain indepe~ident genes located on different chromosomes are responsible for sex determination. Most species

Describe the mechanism use to alleviate situation, If levels of ATP become ...

If levels of ATP become high in a cell (i.e more than the cell needs at that time), describe the mechanism that the cell would use to alleviate this situation (include the name of

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd