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Cytochalasins bind the barbed end of the microtubule which represents the plus of the microtubule, it then blocks the assembly and disassembly of the actin filaments and thus blocks the cell division.

The cytochalasins are used by the researchers to study the process which takes place during the cell division.

Thus, cytochalasin act by blocking the polymerization of actin filaments.

Cytochalasins are fungal metabolites that have the ability to bind to actin filaments and block polymerization and the elongation of actin

As a result of the inhibition of actin polymerization, cytochalasins can change cellular morphology, inhibit cellular processes such as cell division, and even cause cells to undergo apoptosis.

Cytochalasins are known to bind to the barbed, fast growing plus ends of microfilaments, which then blocks both the assembly and disassembly of individual actin monomers from the bound end

The use of cytochalasins has allowed researchers to better understand actin polymerization, cell motility, ruffling, cell division, contraction, and cell stiffness.

6 0

3 years ago

Which levels of classification are smaller and more specific than an order?

Thepotemich [5.8K]

The order of classification is as follows, from largest to smallest: Kingdom, Phylum, Class, Order, Family, Genus, Species.

So your answer will be Family, Genus and Species.

6 0

3 years ago

In 1883, Theodor Engelmann devised an experiment to find out which wavelengths of light were most used by photosynthetic organis

wel

Answer:

Oxygen loving bacteria are accumulated only in two areas in the slide, at its ends, areas rich in oxygen

Explanation:

A prism decomposed the light in different wavelengths between 400 and 700 nm. Plants only absorbed some wavelenghts, one that peaks at about 440nm and the other around the 660 nm, as their particular Chlorophyls used to work.

Electrons from a reaction center from a photosystem (PSII) containing a particular chlorophyl , are launched to higher levels of energy when this is excited by light wavelength (680 nm) and travel by a molecular chain to an acceptor of electrons, forming ATP. To refill the electrons in the reaction center, H2O is hydrolyzed, and their e- reach the reaction center. In this step O2 is also produced.

A second photosystem (PSI) is also excited from another similar reaction center, whose electrons are used to produce reducing power in the form of NADPH. This photosystem I also acts as acceptor of the electrons coming from PSII

6 0

3 years ago