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Each nucleus divides by mitosis to become two nuclei. One is the tube nucleus. The other is a generative nucleus. The wall of the cell thickens to protect the developing pollen grain. As the anther ripens, the wall between the paired pollen sacs disappears. The pollen sacs burst open and the mature pollen grains are ready for dispersal.
Each ovary contains one or more ovules. The green structure at the top of the diagram is the ovule. The integuments are the 2 walls of the ovule. There is a small opening in the walls called a micropyle. This is where the pollen tube will enter. The nucellus is cells that provide nutrition for the growth of the ovule. The embryo sac, also known as the megaspore, divides by meiosis to form 4 haploid cells. Three of these cells degenerate and one remains. Only one megaspore survives in each ovule. This becomes the embryo sac. The haploid nucleus of the surviving megaspore undergoes three mitotic divisions. Eight haploid nuclei are now present. Within the swollen 'megaspore cell' six haploid cells and two 'polar nuclei' are formed. The entire structure is called the embryo sac.
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What is the relationship between bacteria and plants?
Plants need nitrogen to grow. They are surrounded by nitrogen in the air, but it is not in a form the plants can use. Nitrogen fixing bacteria on the roots of the plant convert (fix) the airborne nitrogen to a form the plants can use to grow.
What is reproduction of leaves with examples?
Reproduction of leaves primarily refers to the process by which certain plants can propagate or produce new individuals through their leaves. This can occur in various ways, such as through vegetative propagation, where specialized leaves develop into new plants. An example is the African violet, which can produce new plants from leaf cuttings placed in soil or water. Another example is the "mother of thousands" (Kalanchoe daigremontiana), where tiny plantlets form along the edges of its leaves and can fall off to grow into new plants.
What is the stored form of carbohydrate in plants and animals respictively?
Starch is the storage form of carbohydrates in plants. In contrast, glycogen is the storage form of carbohydrates in animals.
In plant what is the diploid form called?
In plants, what is the diploid form called?
What chemical form is nitrogen obtained by plants?
Plants typically absorb nitrogen in the form of nitrate (NO3-) or ammonium (NH4+). These forms are essential for plant growth and development, as they are used by plants to build proteins, nucleic acids, and other vital molecules.
Name of the vegetative reproduction in bryophyllum?
The vegetative reproduction in Bryophyllum is called "leaf-bud propagation" or "kalanchoe propagation." This method involves the growth of adventitious plantlets at the margins of the leaves, which can be solidified and then rooted to form new plants.
Mycorrhiza form a relationship between fungi and which part of vascular plants?
Mycorrhiza form a relationship between fungi and the roots of vascular plants. This symbiotic relationship helps plants absorb nutrients from the soil and provides the fungi with carbohydrates produced by the plant through photosynthesis.
What is the relationship between bacteria and plants?
Plants need nitrogen to grow. They are surrounded by nitrogen in the air, but it is not in a form the plants can use. Nitrogen fixing bacteria on the roots of the plant convert (fix) the airborne nitrogen to a form the plants can use to grow.
How do plants form new plants?
plants form new plants by pollination of each other
What are The plants that form the basis of rainforest?
The plants that form the basis of rain forest are the The bromeliad flowers,
Do you use possessive with plants?
The possessive form of the plural noun plants is plants'.example: We break up the soil so that the plants' roots can spread easily.
What is the possessive form of plants?
The possessive form of "plants" is "plants'." This is because "plants" is a plural noun, and to show possession of a plural noun ending in "s," an apostrophe is added after the "s" without an additional "s." So, if you are referring to the leaves of the plants, you would write "the plants' leaves."
Do steel wiredrawing plants make form ties?
Steel wiredrawing plants manufacture form ties
What is the most usable form of nitrogen for plants?
The most usable form of nitrogen for plants is nitrate (NO3-).
What is the study of form called?
The study of form in animals and plants is called morphology.
What is the stored form of carbohydrate in plants and animals respictively?
Starch is the storage form of carbohydrates in plants. In contrast, glycogen is the storage form of carbohydrates in animals.
What is the use of kataka - taka?
Kalanchoe pinnata (syn. Bryophyllum calycinum, Bryophyllum pinnatum, also known as the Air Plant, Life Plant, Miracle Leaf, Goethe Plant and the Katakataka (Filipino)) is a succulent plant native to Madagascar. It is distinctive for the profusion of miniature plantlets that form on the margins of its leaves, a trait it has in common with the other members of the Bryophyllum section of the Kalanchoe genus.It is a popular houseplant and has become naturalized in temperate regions of Asia, the Pacific and Caribbean.
