AP BIOLOGY

PLANTS

CLASSIFICATION OF PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What produces the spores?
A
The Sori
B
The Sorus
C
The Sporangium
Explanation: 

Detailed explanation-1: -The sporangium forms on the sporangiophore and contains haploid nuclei and cytoplasm. Spores are formed in the sporangiophore by encasing each haploid nucleus and cytoplasm in a tough outer membrane. During asexual reproduction, these spores are dispersed via wind and germinate into haploid hyphae.

Detailed explanation-2: -Sporangiospores are spores that are produced in a sporangium (plural: sporangia). A sporangium in fungi (but not mosses and some other organisms) is simply a cell containing spores.

Detailed explanation-3: -When the mycelium of a fungus reaches a certain stage of growth, it begins to produce spores either directly on the somatic hyphae or, more often, on special sporiferous (spore-producing) hyphae, which may be loosely arranged or grouped into intricate structures called fruiting bodies, or sporophores.

Detailed explanation-4: -number of spores produced per sporangium ranges from 16 or 32 in some pteridophytes to more than 65 million in some mosses. The sporangia may be borne in specialized structures, such as sori in ferns or as cones (strobili) in many other pteridophytes.

There is 1 question to complete.