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

Byproducts high in energy and nitrogen, Byproducts high in energy and nitro...

Byproducts high in energy and nitrogen Byproducts in this category include products such as blood meal and poultry offal meal, fish meal, extracted oilseed meals/cakes and wast

Reproductive isolation, REPRODUCTIV E ISOLATION - According to the bio...

REPRODUCTIV E ISOLATION - According to the biological species concept, members of one species are reproductively isolated from members of all other species. Accordingly, re

Frog, why frog respire through skin

why frog respire through skin

What is green fluorescent protein, Q. What is green fluorescent protein (GF...

Q. What is green fluorescent protein (GFP)? Green fluorescent protein is a protein which is found in a luminescent jellyfish (Aquorea victoria) that lives in cold waters of nor

Sequencing of dna fragments, Q. If a fragment of nucleic acid has a nucleot...

Q. If a fragment of nucleic acid has a nucleotide sequence TAC can one assert that it is an anticodon or a codon? A nucleic acid having a TAC sequence surely is not tRNA it is

Salt glands in birds and reptiles, Salt Glands in Birds and Reptiles M...

Salt Glands in Birds and Reptiles Marine reptiles for example, iguanas, estuarine sea turtles, crocodiles, sea snakes and marine birds like the marine teleosts do not produce

Set up a potometer in the laboratory, A student set up a potometer in the l...

A student set up a potometer in the laboratory and measured the rate of movement of water in the capillary. An average of four readings gave a rate of 50mm per minute. The apparatu

.excretion, name the blood vessel which bring waste product to kidney

name the blood vessel which bring waste product to kidney

Historically how the origin of life on earth been explained, Historically h...

Historically how has the origin of life on earth been explained? The mainly recurrent explanation for the phenomenon of life on earth is the mythological. The People from vario

Venous drainage of the heart, The coronary sinus is the main vein of the he...

The coronary sinus is the main vein of the heart and is about 3 cm. long. It lies in the coronary sulcus at the posterior surface of  the heart in the posterior atrio-ventricular g

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