give any two points of difference between pollination and fertilization
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What is the difference between pollination and fertilization?
What is the difference between pollination and fertilization?. Ans: Hint: Pollination is a process that can be defined as the fusion of pollen or anther with the stigma. Fertilization is the process in which the male gamete cell, sperm fuses with the...
What is the difference between pollination and fertilization?
Last updated date: 13th Mar 2023
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Hint: Pollination is a process that can be defined as the fusion of pollen or anther with the stigma. Fertilization is the process in which the male gamete cell, sperm fuses with the female gamete cell, ovum.Complete answer:The differences between pollination and fertilization are as follows:
Characteristics Pollination Fertilization
Type of process It is an external process. It is an internal process.
Time of occurrence It takes place before fertilization occurs. It takes place after pollination occurs.
Basic fundament Pollination occurs when anther of the stamen reaches the stigma of the ovary. Fertilization occurs when sperm and ovum fuse.
Physical or biological Pollination is a physical process. Fertilization is a biochemical process and has a genetic basis.
Need of agent It occurs by some pollinators or agents. For example wind, water, birds, insects. No such agent is needed. Fertilization takes place when a pollen tube enters the ovule. This is seen in the case of plants.
Requirement of external factors External factors are necessary for pollination. No external factor required.
Results This process results in the fertilization of gametes. This process results in the formation of embryos (in animals) or seeds (in plants).
Necessity of tubes – pollen and fallopian Pollen tubes are not necessary for this process. In the case of plants, pollen tubes are necessary for transferring the male gamete to the egg, and in the case of animals’ fallopian tubes do this job.
Example, where we can see this process. It is seen only in flowering plants. It is seen in almost all living beings such as plants, animals, birds, insects, humans.
Note: Around 200000 -300000 invertebrate species like butterflies, bees, moths, flies, beetles help to spread pollen for pollination. Two types of pollination are seen – cross-pollination and self-pollination. In self-pollination, pollen of the same plant pollinates the stigma or egg. In cross-pollination, pollen from one plant pollinates the stigma or egg of another plant for which genetic variation occurs.Difference Between Pollination and Fertilization in Tabular Form
When you study about the sexual reproduction in plants, you will come across terms of pollination and fertilization. Read the Difference Between Pollination and Fertilization here.
Difference Between in Biology
Difference Between Pollination and Fertilization
When you study about the sexual reproduction in plants, you will come across terms of pollination and fertilization. Thus, you will learn that both of these are the two natural processes in which offsprings are produced. In addition, both of these procedures take place in all bisexual flowers. Moreover, both of them involve the male and female reproductive structure which is anther and stigma. Consequently, we get flowers as the reproductive organs of all flowering plants. The major difference between pollination and fertilization is that pollination pollens transfer from one flower to another. Whereas, in fertilization takes place after pollination is transferred successfully.
Table of content1 Definition of Pollination
2 Definition of Fertilization
3 Difference between Pollination and Fertilization
3.1 More details about Pollination
3.2 More details about Fertilization
3.2.1 FAQs about Pollination and Fertilization
Definition of Pollination
Pollination refers to the germination of pollen on the stigma. Thus, in this process, pollen transfer from the male organ to the female organ of the same or some other flower. Anther, the male organ, is situated at the tip of a stalk which we call stamen. It produces the pollen grains which comprise of male genetic material. Further, stigma is the organ that contains the female part, that receives the pollen grains. Similarly, it is found at the tip of the female organ which we refer to as pistil. Hence, it assists in sending the sperm cell from the stigma to the ovary containing eggs or ovules.
Definition of Fertilization
Fertilization refers to the process where the sperm and egg unite. Thus, it is basically the mechanism that takes place after pollination. Moreover, each sperm and egg comprises of half of their hereditary material that unites further in order to produce a new plant. A tiny tube generates with the sperm when the pollen grain comes in contact with the stigma. In addition, the tube fits into another pipe-like structure which we refer to as the style of the female pistil. Moreover, it expands from the style to the opening of the ovary, where the sperms collect. Finally, a plant seed i.e. zygote develops when the sperm and eggs fuse completely and fertilize the egg.
Difference between Pollination and Fertilization
Basis of Comparison Pollination FertilizationMeaning It refers to the process where pollen transfers from the anther to the stigma of a flower It refers to the process where the sperm and egg of a plant uniteMechanism The external mechanism which occurs on the flower’s outer part The internal mechanism which occurs inside the flowersPollen Tube Does not form Forms to help the transfer of male gametes to the egg cellSequence Occurs before fertilization Occurs after pollinationProcess Physical process The genetic and biochemical processOccurrence Occurs in flowering plants only Occurs in almost every plant and living beingExternal factors Required Not requiredTypes Self-pollination and cross-pollination No typeResult It leads to fertilization It results in the formation of seedsAgents Wind, water, birds, insects, animals Pollen tube enters the ovuleMore details about Pollination
There are two types of pollination. Thus, they are self-pollination and cross-pollination. Moreover, in self-pollination, the stigma gets pollen from the flower of the same plant. It further divides into autogamy and geitonogamy.
In autogamy, pollen transfers from the same flowers to the stigma. On the other hand, the pollen transfers from one flower to the other of the same flowering plants in geitonogamy.
More details about Fertilization
Fertilization is a process that takes place deep inside the flowering plants. Moreover, double fertilization is quite a distinct process which the angiosperm pursues. Thus, during this process, out of two sperms, one sperm will fertilize the egg to form a zygote.
On the other hand, the other sperm will combine with the secondary nucleus (triple fusion) in order to form a triploid nucleus. Further, we also refer to it as the primary endosperm nucleus. Thus, when the two male gametes fuse with different nuclei of the embryo sac, it is known as double fertilization.
FAQs about Pollination and Fertilization
Question 1: What is the difference between pollination and fertilization?Answer 1: The difference between pollination and fertilization is that pollens transfer from one flower to another during pollination. On the other hand, after pollination occurs successfully, fertilization happens.Question 2: What are the types of pollination?Answer 2: There are two types of pollination. They are self-pollination and cross-pollination.
Difference Between Pollination And Fertilization
The complete process of pollination and fertilization are carried in the reproductive parts of a flower. During pollination, pollen grains are transferred and during fertilization, a zygote is formed.
BiologyBiology Difference BetweenDifference Between Pollination And Fertilization
Difference Between Pollination and Fertilization
Pollination and Fertilization occur in plants during sexual reproduction. They are the two main and natural process of producing offspring. Both the process occurs in all bisexual flowers, in which both the male and female reproductive structure (anther and stigma) are involved. Therefore flowers are considered as the reproductive organs of all flowering plants.
Pollination
It is the biological process of transferring the pollen grains from the male reproductive organ to the female reproductive organ of a flower. In this process, pollen grains containing the male genetic material are collected from the anther and transferred to the stigma of a flower. In pollination, the pollen grains are transferred between anther and stigma by a number of different vectors including wind, birds, honeybees, moths, and butterflies.
There are 2 different types of pollination and are mainly based on the distribution of pollen grains. They are Self-Pollination and Cross-Pollination. It was discovered by the German naturalist, named Christian Sprengelduring the 18th century.
Fertilization
In the fertilization process, female and male gametes fuse together to form a diploid zygote. This process occurs after the pollination of the carpel. The complete series of fertilization takes place within the zygote to develop into a seed and flowers play a major role as they are the reproductive structures of angiosperms.
In the complete course of fertilization, the male gametes are transferred to female reproductive organs through pollinators, including birds, honey bees, butterflies, flower beetles, etc. to produce a final product – an embryo in a seed. The process of fertilization in plants is of three types. Pollen tube enters the ovule differently and this forms the basis of categorization. The three types of fertilization are Chalazogamy, Porogamy, and Mesogamy.
There many differences between pollination and fertilization. Let us have a closer look at a few of them.
Difference between Pollination and Fertilization
Pollination FertilizationPollination is an external process. Fertilization can either be internal or external
Pollination takes place before fertilization. Fertilization occurs after pollination.
Pollination occurs from anthers of stamens to stigma of the ovary It is the fusion of female and male gametes
It is a physical process. It is a genetic and biochemical process.
Pollination agents are wind, water, birds, insects, and other animals. Fertilization takes place by growing pollen tube which enters the ovule
External factors are required. External factors are not required.
This process leads to fertilization. This process leads to the formation of seeds.
The pollen tube is not required Pollen tubes are formed for transferring male gametes into an egg cell.
Pollination occurs only in flowering plants. Fertilization is followed by almost in every living being present on the planet earth, including plants, animals, birds, insects, humans, etc.
Stay tuned with BYJU’S to learn more about the fertilization, pollination and different types of pollinations in the plant kingdom.
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