Answer
Verified
399.9k+ views
Hint: A type of fertilization in plants where the male gametes or antherozoids swim in the water to the female gametes present in the archegonium is known as zooidogamy.
Complete step-by-step answer:
There are ciliated male gametes that take part in this type of fertilization and this occurs in Cycas. This type of plant reproduction relates to evolution and is found in lower gymnosperms, algae, bryophytes, and pteridophytes. Other gymnosperms use siphonogamy.
Additional Information:
Higher gymnosperms- In conifers such as pines a leafy green sporophyte generates cones containing male and female gametophytes. Female cones are bigger than male cones and are present higher up in the tree.
Unlike angiosperms, double fertilization does not take place in gymnosperms; also the ovaries are absent. The male and female gametophytes are present on cones rather than flowers, and wind (not animals) drives pollination.
Angiosperm- These plants go through double fertilization i.e. the pollen tube delivers two male gametes (sperm cells) into the embryo sac, to form the endosperm- one sperm cell fuses with the central cell and to form the embryo- the second sperm cell fuses with the egg cell.
So, the correct answer is ‘lower gymnosperms’.
Note: Siphonogamy is the type of fertilization which takes place by the formation of the pollen tube for the transfer of the male cells to the eggs. Most seed plants are siphonogamous, while in the lower plants the male cells usually swim to the eggs. The spermatophytes are sometimes called siphonogams.
Complete step-by-step answer:
There are ciliated male gametes that take part in this type of fertilization and this occurs in Cycas. This type of plant reproduction relates to evolution and is found in lower gymnosperms, algae, bryophytes, and pteridophytes. Other gymnosperms use siphonogamy.
Additional Information:
Higher gymnosperms- In conifers such as pines a leafy green sporophyte generates cones containing male and female gametophytes. Female cones are bigger than male cones and are present higher up in the tree.
Unlike angiosperms, double fertilization does not take place in gymnosperms; also the ovaries are absent. The male and female gametophytes are present on cones rather than flowers, and wind (not animals) drives pollination.
Angiosperm- These plants go through double fertilization i.e. the pollen tube delivers two male gametes (sperm cells) into the embryo sac, to form the endosperm- one sperm cell fuses with the central cell and to form the embryo- the second sperm cell fuses with the egg cell.
So, the correct answer is ‘lower gymnosperms’.
Note: Siphonogamy is the type of fertilization which takes place by the formation of the pollen tube for the transfer of the male cells to the eggs. Most seed plants are siphonogamous, while in the lower plants the male cells usually swim to the eggs. The spermatophytes are sometimes called siphonogams.
Recently Updated Pages
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
What are the possible quantum number for the last outermost class 11 chemistry CBSE
Is C2 paramagnetic or diamagnetic class 11 chemistry CBSE
What happens when entropy reaches maximum class 11 chemistry JEE_Main
Calculate the volume occupied by 88 gram of CO2 at class 11 chemistry CBSE
Trending doubts
Difference Between Plant Cell and Animal Cell
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Summary of the poem Where the Mind is Without Fear class 8 english CBSE
Give 10 examples for herbs , shrubs , climbers , creepers
Write an application to the principal requesting five class 10 english CBSE
What organs are located on the left side of your body class 11 biology CBSE
What is the z value for a 90 95 and 99 percent confidence class 11 maths CBSE