0
What else can I help you with?
What is exine?
what is endothecium
Why the exine should be hard?
The exine, the outer layer of the pollen grain, should be hard to protect the delicate genetic material inside from environmental stresses, such as UV radiation, desiccation, and microbial attack. A tough exine ensures that the pollen can survive the journey to the stigma of a compatible flower, which is crucial for successful fertilization and reproduction. Additionally, a hardened exine aids in the dispersal of pollen by wind or animals, ensuring that it reaches appropriate locations for germination.
What are the 3 parts of a pollen grain?
The three parts of a pollen grain are the exine (outer layer), intine (inner layer), and the cytoplasm containing the male gametes. The exine is composed of sporopollenin and helps protect the pollen grain during transportation and fertilization.
How can we make sporopollenin?
Sporopollenin is complex compound present in the exine of pollen grains. As such, it can be extracted from pollen grains.
Why is exine of pollen grain not a continuous layer?
The exine of a pollen grain is not a continuous layer because it has openings called germ pores or colpi, which allow for the entry of pollen tubes during fertilization. These pores are necessary for the reproductive success of the plant as they facilitate the transfer of genetic material from the male gametophyte to the female reproductive structures.
What is sporoderm?
Sporoderm is the outermost protective wall around the pollen grain or microspore. It is made up of many layers. The two main layers are Exine and Intine. Exine is outer while Intine is inner layer of sporoderm.
Do sunflower seeds come from sunflower?
Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds.
Are seeds on strawberries nuts or seeds?
The seeds on strawberries are seeds.
How is cotton fiber insulation manufactured?
it is maufactured from seeds. it is maufactured from seeds. it is maufactured from seeds. it is maufactured from seeds. it is maufactured from seeds. it is maufactured from seeds. it is maufactured from seeds.
What is the collective noun for seeds?
Some collective nouns for seeds are a sack of seeds, a packet of seeds, a pod of seeds.
Which seeds are edible?
Sunflower seeds are edible and there very good for you!
Threefoods that are seeds?
Three foods that are seeds are hemp seeds, chia seeds, and flax seeds.
