Pollen grain Notes: Definitions & Explanations PDF | Download eBooks
Study Pollen grain lecture notes PDF with biology definitions and explanation to study What is Pollen grain?. Study pollen grain explanation with biology terms to review biology course for online degree programs.
Pollen grain Definition:
A microspore develops into a pollen grain that consists of a male gametophyte enclosed within the pollen wall.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Pollen grain Notes:
Pollen is a fine to coarse powdery feeling substance that consists of pollen grains. These grains are male microgametophytes of seed plants, which produce male gametes (sperm cells). Pollen grains have a hard coat made of sporopollenin that protects the gametophytes during the process of their movement from the stamens to the pistil of flowering plants, or from the male cone to the female cone of coniferous plants.
Keep Learning with Biology Notes
What is Breathing?
Breathing is the process of moving air into and out of the lungs to facilitate gas exchange with the internal ...
What are Symplastic domains?
Symplastic domains in plants are defined by spatial limitations on cell-to-cell communication through plasmodesmata (Pds) and establish tissue boundaries necessary ...
What is Artificial selection?
Artificial selection is also termed as selective breeding. The breeding of plants and animals is done selectively to produce desirable ...
What is ABC hypothesis?
The ABC model, which aims to describe the biological basis of the process from the perspective of molecular and developmental ...
What is Exoskeleton?
An exoskeleton is the external skeleton that supports and protects an animal's body, in contrast to the internal skeleton (endoskeleton) ...
What is Bottleneck effect?
A population bottleneck or genetic bottleneck is a sharp reduction in the size of a population due to many environmental ...
