Difference between vegetative and generative cell , Biology

Assignment Help:

Difference between Vegetative and Generative Cell

The cytoplasm of the vegetative cell and the generative cell is distinctly different. The generative cell is transparent and contains almost no RNA. The cytoplasm of vegetative cell is rich in RNA. The respective nuclei of these cells differ from each other morphologically and physiologically. The nucleolus in the vegetative nucleus is usually larger than that in the generative nucleus. The vegetative nucleus contains lower amounts of DNA, but its protein content increases after mitosis to about twice that of the generative nucleus.

The protein of the vegetative nucleus is more acidic in nature. The structure of the nucleus in vegetative cell resembles a resting nucleus and it does not normally divide. The generative nucleus is small but contains a higher amount of DNA. It may divide in the pollen grain itself or in the pollen tube to form two sperm nuclei. The pollen grains have reserve food in the form of carbohydrates, proteins and lipids. It appears that the nature of the reserve material in the pollen depends on the mode of pollination. Entomophilous pollen is rich in lipids and anemophilous pollen has mostly starch.


Related Discussions:- Difference between vegetative and generative cell

Expression of variability, In the preceding section we emphasised the fact ...

In the preceding section we emphasised the fact that cvolution or the continuous adaptations to the environment can take place only when pheiiotypes exhibit variability. In the abs

The lower course - classification of the river, The lower course - Classifi...

The lower course - Classification of the river The lower course of the river occurs in the plains, across which it meanders or zigzags slowly. The river here loses much of its

Blood transfusion , Blood transfusion  The blood of Raja cannot be t...

Blood transfusion  The blood of Raja cannot be transfused to Rama because the blood group of Raja is ‘B' and blood group of Rama is ‘A'. If Raja's blood with group ‘B' is

Explain about the radiation therapy, Explain about the Radiation Therapy? ...

Explain about the Radiation Therapy? Radiation therapy is one of the options for the treatment of various tumors. During the administration of radiation patients experience acu

Functions of colour in foods, Q. Functions of Colour in Foods? Let us n...

Q. Functions of Colour in Foods? Let us now look at the different functions of colour in details, which are enumerated herewith: 1. The maturity of many fruits and vegetable

Chemical reactions which are catalysed by enzymes, Give two examples of che...

Give two examples of chemical reactions which are catalysed by enzymes in the course of brewing.  In the course of brewing, enzymes in the grain catalyse the conversion of star

Evaluate what is the frequency of carriers in a tank, Zebrafish are raised ...

Zebrafish are raised in fish tanks with one family per tank. The mutation spadetail is a recessive lethal. A stock tank for spadetail was made by crossing two carriers. The fish in

#title., poor metabolism phenotype will have

poor metabolism phenotype will have

Reducing cost of accident, Reducing Cost of Accident One clear way to ...

Reducing Cost of Accident One clear way to control the cost of accident would be to follow all the rules of book for safety. All the methods of safety which were described ear

Nutritional demands of sports and dietary recommendations, Define Nutrition...

Define Nutritional Demands of Sports and Dietary Recommendations? There is a strong relationship between nutritional status and physical training. Whether it is to maintain hea

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