Question

What is the speed of the anther sac as it releases its pollen"?

Answer 1

Answer:

The bunchberry flower has the fastest-moving parts ever seenin a plant. Initially, the stamen are held by the petals in a bentposition, storing elastic energy like a coiled spring. As thepetals release, the tips of the stamen act like medieval catapults,flipping through a 60^\circ angle in just 0.30 ms to launch pollen from theanther sacs at their ends. The human eye just sees a burst ofpollen; careful photography reveals the details. As shown in thefigure, we can model a stamen tip as a 1.0-mm-long, 10 {\rm \mu g} rigid rod with a 10 {\rm \mu g} anther sac at one end and a pivot point at theopposite end. Although oversimplifing, we will assume that theangular acceleration is constant throughout the motion.

Answer 2

Function of Anther Sac

Explanation:

• A different anther contains four microsporangia
• The microsporangia structure sacs or pockets (locules) in the (anther sacs or dust sacs)
• Every microspore at that point isolates mitotically to shape a immature microgametophyte called a pollen grain
• The pollen grains is in the end discharged when the anther structures openings (dehisces)
• The male reproductive part of a flowers is alluded to as the stamen and comprises of the filament and the anther
• The filament is a stalk-like structure that appends to the base of the flower and supports the anther, which is the structure that produces pollen