Pollination And Fertilization

Question 1

Define pollination

Answer 1

Pollen transferred to the stigmatic surface of a pistil

Question 2

Fertilization follows and does what ?

Answer 2

Pollen tube delivering sperm to the ovules in the ovary

Question 3

What is required for cross pollination or cross fertilization

Answer 3

Animate and inanimate pollination

Question 4

Wind pollination

Answer 4

Crude, hit or miss pollination, best known from spring flowering temperate zone trees and fall flowering weeds

Question 5

Fertilization

Answer 5

Microsporocytes divide meiosis to form 4 haploid pollen grains, tube cell drills down style toward ovary; generative cell splits into 2 sperm cells

Question 6

Double fertilization sequence

Answer 6

First sperm (n) + egg(n) > zygote (2n) - speed + 2 polar nuclei> endosperm (3n)

Question 7

Water pollination

Answer 7

In submersed angiosperms, the water columns or surfaces for pollination